SD SERIES - TABLE OF CONTENTS
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
www.kirkkey.com
SD Series - Table of Contents
MECHANICAL INTERLOCKS
1.1 Type F - Flat Mounted
1.2 Type B - Base Mounted
1.3 Type T - Key Transfer Block
1.4 Type D - Door Mounted (Detachable)
1.5 Type DM - Access Door Interlock
1.5A Type DM - Latch Bolt Options
1.5B Type DM - Mounting Options (DM2 and DM4 Adapter Plates)
1.6 Interlock Transfer Panel
1.7 Type FN - Front (Narrow) Mounted
1.8 Type NT - Flat (Narrow) Top Mounted
1.9 Type U - End Mounted
1.10 Type CN22 - Threaded Cylinder Mounting
1.11 Type P - Padlock
1.12 Type DY1 - Sub-Panel Mounted
1.13 Type DY2 - End Mounted
1.14 Type DY3 - Flush Mounted
1.15 Camlock
1.18 Type DC - Panel Door Interlock
ELECTRO-MECHANICAL INTERLOCKS
2.1 Type TPS - Sub-Panel Mounted Switch
2.2 Type SKRU - Solenoid Key Release Unit (Unhoused)
2.2A Type SKRU - Solenoid Key Release Unit (Housed)
2.2B Type SKRU - Solenoid Key Release Unit (2-Key, Unhoused)
2.2C Type SKRU - Solenoid Key Release Unit (2-Key, Housed)
2.2D Type SKRU - Wiring Diagram 156-649 (no Pushbutton or Signal Lamp)
2.2E Type SKRU - Wiring Diagram 156-650 (with Pushbutton)
2.2F Type SKRU - Wiring Diagram 156-617 (with Signal Lamp)
2.2G Type SKRU - Wiring Diagram 156-618 (with Pushbutton and Signal Lamp)
2.2H Solenoid Power Ratings
2.3 Type Thermoplastic Bodied Switch
2.4 Type S Auxiliary Switches
2.5 Type K Auxiliary Switch
2.6 Type SKPM - Solenoid Key Panel Mounted
SKPM Wiring Diagram
2.7 Type TDKRU - Time Delay Key Release Housed
TDKRU Wiring Diagram 235-162
2.8 Type PPS - Panel Mounted Switch
ACCESSORIES & KEYS
3.1 Dust Cover Push On and Flip Open
3.2 Mounting Bolts (Hex Head, Tamperproof, Tamperproof Tools)
3.3 Adapter Plates - Mounting Plates (Short D Plate, Long D Plate, FN Plate)
3.4 Interlock System Keys
3.5 Graphite Lubrication Kit
4.1 KIRK® Key Interlock Terminology
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
__________________________________________________________________________
SD SERIES - SPECIFICATION DATA SHEET 1.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type F - Flat Mounted
The Type F interlock is generally flat or face mounted with bolts through the front of the housing. The body of the
lock is brass and the locking bolt is made of 5/8” diameter stainless steel. The throw, or travel, of the locking bolt is
3/4".
OPTIONS
• Locking Bolt Length - when ordering, specify the length of the locking bolt in the withdrawn position. Standard
lengths are 1/4", 3/8", 1/2", 3/4”, 1", 2", and 3". Non-standard lengths are also available. (1” Lock Bolt shown on
drawing)
• Key Removable - the key(s) is removable when the locking bolt is either in the extended (E) or withdrawn (W)
position. Please choose E or W when ordering an interlock. Key removable extended is the most common because
the locking bolt is typically extended to block/engage something.
• Multi-Cylinder - up to 15 cylinders available. Housings with 5 cylinders or more come with mounting holes at each
end of the housing. Designate "E" or "W" key removable position for each cylinder.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Auxiliary Switches - see SD Series Data Sheets for Type Thermoplastic (2.3), Type S (2.4) and Type K (2.5) for
details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• "Opposite Hand" - see SD Series Data Sheet for Terminology (4.1) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type F - Flat Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.4062” (10.32mm) holes for mounting bolts (2 holes).
2) Mounting holes for locks with 5 or more cylinders. Type F interlocks with five or more cylinders will have
mounting holes at each end of the interlock. The rear mounting holes are 7/8” (22.23mm) from the end. The total
length of the five cylinder Type F interlock is 9 1/2” (24.13cm) . Add 1 1/2” (38.1mm) for every additional cylinder.
SD SERIES - SPECIFICATION DATA SHEET 1.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type B - Base Mounted
The Type B interlock is commonly base or flange mounted. The interlock housing is made from cast bronze. The
locking bolt is made of 5/8” diameter stainless steel. The throw, or travel, of the locking bolt is 3/4".
OPTIONS
• Locking Bolt Length - when ordering, specify the length of the locking bolt in the withdrawn position. Standard
lengths are 1/4", 3/8", 1/2", 3/4”, 1", 2", and 3". Non-standard lengths are also available. (1” Lock Bolt shown on
drawing)
• Key Removable - the key(s) is removable when the locking bolt is either in the extended (E) or withdrawn (W)
position. Please choose E or W when ordering an interlock. Key removable extended is the most common because
the locking bolt is typically extended to block/engage something.
• Multi-Cylinder - up to 7 cylinders available. Designate "E" or "W" key removable position for each cylinder.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Auxiliary Switches - see SD Series Data Sheets for Type Thermoplastic (2.3), Type S (2.4) and Type K (2.5) for
details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• "Opposite Hand" - see SD Series Data Sheet for Terminology (4.1) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type B - Base Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.4062” (10.32mm) holes for mounting bolts.
2) Footprint of multiple cylinder Type B.
3) Footprint of single cylinder Type B.
SD SERIES - SPECIFICATION DATA SHEET 1.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type T - Key Transfer Block
The Type T transfer block is an assembly of two or more lock cylinders in a single housing. Type T transfer blocks
are designed to retain one or more keys (called held keys) while the remaining (initiating) key(s) are removed. This
allows an exchange of keys for two or more interlock sequences. All initiating keys must be inserted into the Type
T block before the retained keys can be removed. Once a retained key is removed, the initiating keys are trapped
in the interlock.
Type T interlocks are called transfer blocks because there is no locking bolt projecting through the base for locking
any moving part. Usually the need for a Type T transfer block can be eliminated by using multi-cylinder interlocks
mounted on other devices, making it unnecessary to go through an additional transfer lock operation. The transfer
block housing is made from brass.
OPTIONS
• Key Removable - specify which key(s) are initiating "E" and which key(s) are held "W".
• Multi-Cylinder - up to 15 cylinders available. Housings with 5 cylinders or more come with mounting holes at each
end of the housing.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Auxiliary Switches - see SD Series Data Sheets for Type Thermoplastic (2.3), Type S (2.4) and Type K (2.5) for
details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
NOTE: When the number of keys in the transfer step exceeds 8, it may be advantageous to use a Transfer Panel
instead of a Type T interlock. See the SD Series Data Sheet for Transfer Panels (1.6) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type T - Key Transfer Block
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.4062” (10.32mm) holes for mounting bolts (2 holes).
2) Mounting holes for locks with 5 or more cylinders. Type T blocks with five or more cylinders will have mounting
holes at each end of the block. The rear mounting holes are 7/8” (22.23mm) from the end. The total length of the
five cylinder Type T transfer block is 9 1/2” (24.13cm). Add 1 1/2” (38.1mm) for every additional cylinder.
SD SERIES - SPECIFICATION DATA SHEET 1.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type D - Door Mounted (Detachable)
A Type D interlock has two parts: a main body with one or more cylinders and a latch block. The main body is
typically attached to a door or hatch that swings open. The latch block is typically bolted to the door frame.
When the key is turned and the door is opened, the main body and latch block are separated causing the key to be
trapped and the locking bolt to be held in the withdrawn position. The key is always held in the Type D interlock
whenever the two parts are separated. When the door is properly closed, the lock body seats fully against the
latch block, releasing the locking bolt. The operating key can now be rotated to extend the locking bolt into the
latch block. After the locking bolt is fully extended, the operating key may be removed.
The interlock housing is made from brass. The lock bolt is made from 5/8" diameter stainless steel.
OPTIONS
• Key Removable - a single cylinder Type D interlock is always built key removable "E", which means the key is
released only when the lock bolt is extended into the latch block (door closed).
• Multi-Cylinder - up to five cylinders available. The first cylinder should always be "E" (see Key Removable option
above). A multi-cylinder Type D requiring all keys to unlock the door should have each cylinder designated "E".
Any cylinders that are designated "W" will release a key when the door is unlocked - such as a personnel key.
("W" keys are trapped when the door is locked - "E" keys are trapped when the door is unlocked.)
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Auxiliary Switches - see SD Series Data Sheets for Type Thermoplastic (2.3) and Type S (2.4) and Type K (2.5)
for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type D - Door Mounted (Detachable)
OPTIONS (Continued)
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• Adapter Plates - an adapter plate can be fastened to the housing to allow front mounting (see diagram below).
See SD Series Data Sheet for Adapter Plates (3.3) for details.
• “Opposite Hand” - the photo shows a typical right-handed Type D interlock, meaning it is designed to work on a
door hinged to the right when looking at the front of the lock. Left-handed Type D interlocks can be ordered by
specifying "opposite hand". See SD Series Data Sheet on Terminology (4.1) for details.
You do not need to specify a locking bolt length when ordering Type D.
Caution: The Type D interlock should not be used to align the door, or to be the latching means for holding the
door in the closed position.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type D - Door Mounted (Detachable)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.4062” (10.32mm) holes for mounting bolts (4 holes).
2) 1/2"-13 thread tapped 1/2” from bottom (latch block only).
3) Optional adapter plate shown - see SD Series Data Sheet for Adapter Plates (3.3) for details.
Caution: The Type D interlock should not be used to align the door, or to be the latching means for holding the
door in the closed position.
SD SERIES - SPECIFICATION DATA SHEET 1.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type D - Door Mounted (Detachable)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) Shown with optional adapter plate. The Type D interlock can be mounted on either flat or reinforced doors (front
and back mounted). See SD Series Data Sheet for Adapter Plates (3.3) for more details.
SD SERIES - SPECIFICATION DATA SHEET 1.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DM - Access Door Interlock
The Type DM access door interlock is designed for hinged doors, manhole covers, sliding doors or any sort of
hatch or lid. It is well suited for loose fitting doors or hatches that will not accommodate a precise fitting door lock.
The Type DM consists of a main body and a latch bolt with twelve links of 316 stainless steel chain. The lock body
can be mounted to the equipment and the chain can be bolted or welded to the door or hatch with the proper
amount of “slack” for the latch bolt to reach the DM lock body.
Under normal conditions the key is upstream in the interlock scheme and the chain/bolt is trapped in the lock
securing the door in the closed position. The latch bolt cannot be released until the key is inserted and turned. Only
then can the latch bolt be rotated 1/4 turn and released from the lock – thereby trapping the key. The door or hatch
must be closed and the latch bolt must be returned to the lock body in order to free the key.
The interlock housing is made from brass. The latch bolt is made from 316 stainless steel and has a gasket to
protect against the introduction of dust and dirt into the lock body.
OPTIONS
• Key Removable - the single cylinder Type DM is always built key removable “E", which means the key is released
only when the latch bolt is trapped in the lock body (door locked).
• Multi-Cylinder - up to 2 cylinders available. The first cylinder will always be "E" (see above). A two cylinder DM
interlock requiring two keys to unlock should be designated "E" for both cylinders. If the second cylinder of a two
cylinder DM is to provide a "Personnel Key" that is available when the door is unlocked, designate that cylinder as
key removable "W".("E" keys are trapped when the door is unlocked, "W" keys are trapped when the door is
locked.)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DM - Access Door Interlock
OPTIONS (Continued)
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Latch Bolt with Spring and Mounting Bracket - seen in photo above. See SD Series Data Sheet for Latch Bolt
Options (1.5A) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Auxiliary Switches - see SD Series Data Sheet for Type Thermoplastic (2.3) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• DM2 and DM4 Adapter Plates – see SD Series Data Sheet for Mounting Options (1.5B).
Caution: The Type DM interlock should not be used as the latching means for holding the door, hatch, or cover in
the closed position.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DM - Access Door Interlock
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.4062” (10.32mm) holes.
2) 12 links of chain (approx. 11”). Field weld chain to door or jamb. Allow 1” (25.4mm) slack.
3) 1” (25.4mm) diameter collar and gasket.
Caution: The Type DM interlock should not be used as the latching means for holding the door, hatch, or cover in
the closed position.
SD SERIES - SPECIFICATION DATA SHEET 1.5A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DM - Latch Bolt Options
DM Latch Bolt with Spring & Mounting Bracket
(Part # S42955A00)
The optional Type DM latch bolt with spring and mounting bracket offers mounting alternatives for the Type DM
Interlock. The mounting bracket is designed to hold the latch bolt in close proximity to the DM lock body. After
inserting and turning the key, the latch bolt can be rotated 1/4 turn to be released from the lock – thereby trapping
the key.
A sliding door or gate is a good application for this style of latch bolt.
All components of the S42955A00 DM latch bolt are made from electropolished 316 stainless steel.
To order the latch bolt with spring and mounting bracket just specify the part
number S42955A00 latch bolt with your Type DM interlocks.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.5A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DM - Latch Bolt Options
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.406” (10.3mm) x .75" (19.05mm) slotted holes for mounting bolts (2 holes).
2) Recommended Spacing: 13/16” (20.64mm) min, 1 1/4” (31.75mm) max.
3) Latched - key released.
4) Unlatched - key trapped.
SD SERIES - SPECIFICATION DATA SHEET 1.5A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
www.kirkkey.com
.
Door or Hatch
.
Sliding Door or Gate
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
Type DM - Latch Bolt Options
SD SERIES - SPECIFICATION DATA SHEET 1.6
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Interlock Transfer Panel
The Transfer Panel is an exchange point in which the final keys of one or more interlock sequences are exchanged
for one or more different keys for additional operations. All primary (initiating) keys must be inserted into the
transfer panel before any secondary (retained) keys can be turned and removed. Once a secondary key is
removed, all primary keys are held captive in the transfer panel.
Transfer panel primary keys are generally related to power sources (such as breakers, T/R switches, level
detectors, etc.) and secondary keys are often associated with access doors.
Transfer panels add real value when the total number of keys at the transfer step exceeds eight. Transfer keys,
locks, and mechanical linkages are completely enclosed in a NEMA 12 enclosure made of 14 or 16 gauge steel.
Advantages of transfer panels include:
• Reduced installation costs - one location for enclosure containing large quantity of keys.
• Reduced key handling - simplifies total system with only one key transfer step. This saves time for operating
personnel.
• Protection - all locks and keys are protected from the environment.
OPTIONS
• Key Sequence - When ordering, specify the number of primary and secondary keys. Primary keys are removed
from the transfer panel and retained in other interlocks. Secondary keys are held in the transfer panel.
• Enclosure - NEMA 4 and NEMA 4X are available. Please specify NEMA rating required.
• Number of Locks - See table on page 3 for details.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.6
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Interlock Transfer Panel
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
Transfer Panels are available in many sizes. Contact Kirk Key Interlock Company for more information.
SD SERIES - SPECIFICATION DATA SHEET 1.6
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Interlock Transfer Panel
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTE:
Transfer panels are available in many other sizes. Please call Kirk Key Interlock Company for more information.
SD SERIES - SPECIFICATION DATA SHEET 1.7
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type FN - Front (Narrow) Mounted
The Type FN interlock has a more narrow housing than the Type F interlock and is mounted by means of 1/4"-20
tapped holes in the end of the housing. The interlock housing is made from brass. The locking bolt is made of 5/8"
diameter stainless steel. The throw, or travel, of the locking bolt is 3/4".
OPTIONS
• Locking Bolt Length - when ordering, specify the length of the locking bolt in the withdrawn position. Standard
lengths are 1/4", 3/8", 1/2", 3/4”, 1", 2", and 3". Non-standard lengths are also available. (1” Lock Bolt shown on
drawing)
• Key Removable - the key(s) is removable when the locking bolt is either in the extended (E) or withdrawn (W)
position. Please choose "E" or "W" when ordering an interlock. Key removable extended is the most common
because the locking bolt is typically extended to block/engage something.
• Multi-Cylinder - up to 3 cylinders available. Designate "E" or "W" key removable position for each cylinder.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Auxiliary Switches - see SD Series Data Sheets for Type Thermoplastic (2.3).
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• "Opposite Hand" - see SD Series Data Sheet for Terminology (4.1) for details.
• Adapter Plate - allows additional mounting options. See SD Series Data Sheet 3.3 for more details (FN Plate).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.7
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type FN - Front (Narrow) Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 1/4”-20 x 3/8” (9.525mm) deep for mounting (2 holes).
2) Optional FN adapter plate (see SD Series Data Sheet 3.3 for details).
SD SERIES - SPECIFICATION DATA SHEET 1.8
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type NT - Flat Narrow Top Mounted
The Type NT interlock is similar in design to the Type F interlock. However, the Type NT housing is more narrow
and is intended to be flat, or face mounted with 1/4" bolts through the front of the housing. It is ideal for
applications where a smaller interlock or smaller mounting bolts are required for additional clearance (e.g. the front
of a panelboard containing molded case circuit breakers).
The interlock housing is made from brass. The locking bolt is made of 5/8” diameter stainless steel. The throw, or
travel, of the locking bolt is 3/4".
OPTIONS
• Locking Bolt Length - when ordering, specify the length of the locking bolt in the withdrawn position. Standard
lengths are 1/4", 3/8", 1/2", 3/4”, 1", 2", and 3". Non-standard lengths are also available. (1” Lock Bolt shown on
drawing)
• Key Removable - the key(s) is removable when the locking bolt is either in the extended (E) or withdrawn (W)
position. Please choose E or W when ordering an interlock. Key removable extended is the most common because
the locking bolt is typically extended to block/engage something.
• Multi-Cylinder - up to 2 cylinders available. Designate "E" or "W" key removable position for each cylinder.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• "Opposite Hand" - see SD Series Data Sheet for Terminology (4.1) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.8
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type NT - Flat Narrow Top Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.257” (6.52 mm) holes for mounting bolts.
SD SERIES - SPECIFICATION DATA SHEET 1.9
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type U - End Mounted
The Type U interlock is designed for applications where space is limited. It can be fastened through the lock body
with 3/8” bolts or panel mounted with 10-32 bolts from the bottom of the lock body.
The interlock housing is made from brass. The locking bolt is made of 5/8” diameter stainless steel. The throw, or
travel, of the locking bolt is 3/4". Locking bolt movement is completely controlled by the rotation of the key.
OPTIONS
• Locking Bolt Length - when ordering, specify the length of the locking bolt in the withdrawn position. Standard
lengths are 1/4", 3/8", 1/2", 3/4”, 1", 2", and 3". Non-standard lengths are also available. (1” Lock Bolt shown on
drawing)
• Key Removable - the key is removable when the locking bolt is either in the extended "E" or withdrawn "W"
position. Please choose "E" or "W" when ordering an interlock. Key removable extended is the most common
because the locking bolt is typically extended to block/engage something.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• "Opposite Hand" - see SD Series Data Sheet for Terminology (4.1) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.9
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type U - End Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.4062” (10.32mm) holes for mounting bolts.
2) 10-32 tapped holes (2) places.
SD SERIES - SPECIFICATION DATA SHEET 1.10
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type CN22 - Threaded Cylinder Mounting
The Type CN22 is a threaded cylinder interlock, commonly installed on circuit breaker interlocking kits. The cam on
the back of the cylinder is made to interact with existing linkage on your equipment. The key is trapped or released
according to the position of the cam. The CN22 can be linked to other CN22s with the proper bracketry.
Because the CN22 does not have a housing, it is designed to be installed on provisions or bracketry supplied by
the breaker manufacturer. Each CN22 comes with two locknuts (as pictured).
The cylinder body and cam are made of brass and the cylinder face is made of polished nickel, or polished brass.
The supplied cam can be removed and replaced with your own to interact with
special linkages on your equipment.
OPTIONS
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
*** IMPORTANT NOTE ***
BEFORE REMOVING THE CAM, PLEASE BE SURE THAT THE KEY IS REMOVED FROM THE LOCK. THIS
ENSURES THAT THE PLUG DOES NOT SLIDE OUT, RELEASING ALL OF THE DRIVERS AND PINS OF THE
LOCK.
*** IMPORTANT NOTE ***
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.10
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type CN22 - Threaded Cylinder Mounting
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 3/16” (4.76mm) diameter pin.
2) Two locking nuts provided.
3) All dimensions on this drawing are reference dimensions.
SD SERIES - SPECIFICATION DATA SHEET 1.11
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type P - Padlock
The Type P is a special, heavy-duty padlock with a brass housing and a stainless steel shackle. The Type P
padlock incorporates the special 7-pin tumbler lock, which permits interchangeability with other KIRK® SD Series
interlocks.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.11
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type P - Padlock
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.12
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY1 - Sub-Panel Mounted
The Type DY1 interlock is made for loose fitting access opening doors. It has two parts: a main body and a latch
block-bolt eye.
The Type DY1 interlock can be mounted on the door, projecting through an opening cut in the door panel. The
latch block-bolt eye is mounted on the door jamb so it will engage the main body when the door is closed.
When the main body is separated from the latch block-bolt eye, the key is retained and cannot turn in the lock.
Thus, the key is always held in the lock when the two parts are separated.
By closing the door on which the DY1 interlock is mounted, the latch block-bolt eye is engaged with the main body
and the key can be turned and removed.
The DY1 housing and latch block-bolt eye are made of zinc alloy. The dust cover and all interior parts are made of
stainless steel. The exterior is painted with powder coat paint. Push On dust cover is included.
OPTIONS
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Mounting Bolts – 1/4”-20 x 3/8” flat Phillips head made of stainless steel.
• Latch Block-Bolt Eye - DY-1 = None, DY-1A = Longitudinal Type, DY-1B = Transverse Type. See page 3 for
drawings.
• Latch Block U-Bolt and Chain – an additional mounting option (12 links of chain standard). See photo on SD
Series Data Sheet for Type DY3 (1.14).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.12
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY1 - Sub-Panel Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 1/4”-20 tapped x 1/4” (6.35mm) deep mounting holes (3 holes).
SD SERIES - SPECIFICATION DATA SHEET 1.12
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY1 - Sub-Panel Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
LONGITUDINAL Latch Block-Eye Bolt shown at top.
TRANSVERSE Latch Block-Eye Bolt shown below.
NOTES:
2) .257” (6.52mm) diameter mounting holes.
3) .500” (12.7mm) diameter hole.
SD SERIES - SPECIFICATION DATA SHEET 1.13
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY2 - End Mounted
The Type DY2 interlock is made for loose fitting access opening doors. It has two parts: a main body and a latch
block-bolt eye. A stainless steel mounting plate is attached to the base of the main body as pictured.
The Type DY2 interlock can be mounted on the surface of the door jamb with the latch block-bolt eye mounted on
a bar, which spans the interlocked door.
When the main body is separated from the latch block-bolt eye, the key is retained and cannot turn in the lock.
Thus, the key is always held in the lock when the two parts are separated.
By closing the door on which the DY2 interlock is mounted, the latch block-bolt eye is engaged with the main body
and the key can be turned and removed.
The DY2 housing and latch block-bolt eye are made of zinc alloy. The dust cover and all interior parts are made of
stainless steel. The exterior is painted with powder coat paint. Push On dust cover is included.
OPTIONS
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Latch Block-Bolt Eye - DY-2 = None, DY-2A = Longitudinal Type, DY-2B = Transverse Type. See page 3 for
drawings.
• Latch Block U-Bolt and Chain – an additional mounting option (12 links of chain standard). See photo on SD
Series Data Sheet for Type DY3 (1.14).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.13
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY2 - End Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) .2031” (5.159mm) diameter mounting holes (4 holes).
SD SERIES - SPECIFICATION DATA SHEET 1.13
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY2 - End Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
LONGITUDINAL Latch Block-Eye Bolt shown at top.
TRANSVERSE Latch Block-Eye Bolt shown below.
NOTES:
2) .257” (6.52mm) diameter mounting holes.
3) .500” (12.7mm) diameter hole.
SD SERIES - SPECIFICATION DATA SHEET 1.14
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY3 - Flush Mounted
The Type DY3 interlock is made for loose fitting access opening doors. It has two parts: a main body and a latch
block-bolt eye. A mounting plate is attached to the face of the main body as pictured.
The Type DY3 interlock can be mounted on the door with the latch block-bolt eye mounted on the door jamb so it
will engage the main body when the door is closed.
When the main body is separated from the latch block-bolt eye, the key is retained and cannot turn in the lock.
Thus, the key is always held in the lock when the two parts are separated.
When the door on which the DY3 interlock is mounted is closed, the latch block-bolt eye is engaged with the main
body and the key can be turned and removed.
The DY3 housing and latch block-bolt eye are made of zinc alloy. The dust cover and all interior parts are made of
stainless steel. The exterior is painted with powder coat paint. Push On dust cover is included.
OPTIONS
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Latch Block-Bolt Eye - DY-3 = None, DY-3A = Longitudinal Type, D3-1B = Transverse Type. See page 3 for
drawings.
• Latch Block U-Bolt and Chain – an additional mounting option (12 links of chain standard). See photo above.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.14
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY3 - Flush Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) .1875” (4.76mm) diameter mounting holes (4 holes).
SD SERIES - SPECIFICATION DATA SHEET 1.14
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DY3 - Flush Mounted
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
LONGITUDINAL Latch Block-Eye Bolt shown at top.
TRANSVERSE Latch Block-Eye Bolt shown below.
NOTES:
2) .257” (6.52mm) diameter mounting holes.
3) .500” (12.7mm) diameter hole.
SD SERIES-SPECIFICATION DATA SHEET 1.15
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Camlock
The Camlock is a compact, threaded cylinder interlock designed to fit smaller-sized switchgear. The key is trapped
or released according to the position of the cam. It is designed to be installed with provisions or bracketry provided
by the breaker manufacturer. The Camlock can be linked to other camlocks with the proper bracketry.
The Camlock is manufactured so that it normally turns clockwise to trap the key. If counterclockwise rotation is
required, a small set screw can be easily moved from one side of the interlock to the other to facilitate CCW
rotation.
The Camlock is made from brass. The hex mounting nuts are zinc plated steel.
OPTIONS
• Stamp Key Interchange – specify one character code (A, B, 1, 2, etc.) to be stamped on the cylinder face and on
the key. See SD Series Data Sheet 3.4 and 4.1 for details. Note: due to the small size of this interlock, two
characters cannot be used for the key interchange.
HOW TO ORDER:
The item master number for the Camlock is KCAM00010. If a key interchange is to be stamped on the cylinder
face and key, the item master number is KCAM00010S.
When ordering a Camlock for GE EntelliGuard G® Cassette Mounted Circuit Breakers please refer to GE
installation instructions DEH-41500. Those instructions will direct you to order Kirk Camlock KCAMXXX10S or
KCAMXXX11S depending upon the application. (Remove the "S" from the part number if the key interchange is
not to be stamped)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES-SPECIFICATION DATA SHEET 11.15
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Camlock
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.18
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DC - Panel Door Interlock
A Type DC interlock has two parts: a lock body and a catch. The catch is available in two styles, one suited to well
aligned doors, the other suited to mis-aligned doors. The lock body is typically attached to a door or gate that
swings open. The catch is typically attached to the door frame. The DC interlock is designed for use on light duty
panel doors in dry, non-corrosive environments where the interlock is subject to light to medium use.
When the key is turned and the door is opened, the lock body and catch are separated causing the key to become
trapped in the lock. The key is held in the interlock as long as the door is open. When the door is properly closed,
the catch seats fully into the lock body allowing the key to be turned and released, thereby locking the door closed.
The standard Type DC interlock is designed to accept the catch from the rear (or back) of the lock body.
All parts of the Type DC interlock are made of brass.
OPTIONS:
Catch Type - Optional spring mounted catch (Flex Catch) is available for badly mis-aligned doors.
Front Catch Option - The Type DC interlock is available with a front entry catch for applications where the door or
gate opens by swinging inwards.
Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Data Sheet for Keys (3.4) and Terminology (4.1) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.18
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DC - Panel Door Interlock
OPTIONS (Continued)
Dust Covers – see SD Series Data Sheet for Dust Covers (3.1) for details.
Mounting Bolts – see SD Series Data Sheet for Mounting Bolts (3.2) for details.
Opposite Hand – The photos show a typical “right-handed” Type DC interlock – the interlock body is on the righthand side of the catch. If your application requires the catch to be on the left side of the lock body, specify
“opposite hand” when ordering the type DC interlock. See the SD Series Ordering Guide and SD Series Data
Sheet on Terminology (4.1) for details.
Caution: The Type DC interlock should not be used to align the door, or to be the only latching means for holding
the door in the closed position.
.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 1.18
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DC - Panel Door Interlock
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 0.4062" (10.32mm) Holes for Mounting Bolts (2 Holes)
2) 0.277" (7mm) Countersunk Holes (2 Holes) in Standard Catch
3) 0.277" (7mm) Holes for Mounting Bolts (2 Holes) in Flex Catch
SD SERIES - SPECIFICATION DATA SHEET 1.18
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type DC - Panel Door Interlock
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type TPS - Sub-Panel Mounted Switch
The Type TPS interlock is a key actuated switch utilizing two tandem mounted Square D Class 9001 KA1 contact
blocks and is designed for back panel mounting (sub panel). The TPS can be installed so the lock cylinder will
protrude 5/8” or flush mounted (by use of spacers).
The contact blocks are UL listed. The TPS has 2 N.O. & 2 N.C. contacts. Additional contacts are available, see
options below.
The switch rating is:
• 120VAC - 60A make / 6A break / 10A continuous
• 240VAC - 30A make / 3A break / 10A continuous
• 125VDC - 0.55A make & break / 2.5A continuous
OPTIONS
• Contacts - 4 N.O. & 4 N.C. (Type TPSS). If TPSS is ordered, a second set of contact blocks will be stacked on
top of the first set of contact blocks.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Multi-Cylinder - up to 2 cylinders available (M2TPS). Note: The 2-cylinder TPS is available with both keys
removable at the same time or 1 key in and 1 key out. Please specify at time of order. See SD Series Ordering
Guide.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts - see SD Series Data Sheet for Mounting Bolts (3.2) for details.
• Spacers – stainless steel spacers for flush mounting. Spacers are 1/2” long (12.7mm) x 5/8” (15.875mm)
diameter.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type TPS - Sub-Panel Mounted Switch
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 1/4"-20 tapped mounting holes.
2) Length of 3.5” (88.9mm) applies to Type TPS. Type TPSS is 4.5” (114.3mm) long.
3) Optional spacers (for flush mounting).
4) Contact positions shown with key trapped. When the key is turned and released, the contacts will change state.
SD SERIES - SPECIFICATION DATA SHEET 2.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Unhoused
The Type SKRU consists of an interlock, a solenoid, and an auxiliary switch. The solenoid is designed to permit
removal of the interlock key in response to an external electric signal. The auxiliary switch is a quick-make, quickbreak device, which operates when the interlock key is rotated. Normally, the key is trapped in the SKRU and the
solenoid is de-energized. To release the key, a signal must be sent to the solenoid from an external source.
The SKRU is typically used in combination with other KIRK® key interlocks. The SKRU can be manufactured with
various mechanical and electrical options. The push button and/or the LED signal lamp are the most popular
options. All components are UL recognized. The solenoid, optional signal lamp and optional push button are wired
out to a terminal block along with some of the aux contacts. Please reference the wiring diagrams on our website
for specific details.
The main body of the SKRU is constructed of brass. The optional cover plate and optional housing are aluminum.
OPTIONS
• Mounting Options – unhoused, cover plate only, or housed. The photo above shows the unhoused SKRU. The
cover plate mounted version is shown on the next page. The housed version is shown on the SD Series Data
Sheet 2.2a. The housed SKRU is available front or back panel mounted. See drawing on page 4 of Data Sheet
2.2A, as well as the interlock ordering guide.
• Key Removable – energized or de-energized. Please specify. Key removable energized is by far the most
common.
• LED Signal Lamp – indicates that the external electric signal has been sent to the solenoid.
• Push Button – connected in series with the solenoid - the push button must be pressed to allow the external
electric signal to energize the solenoid.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Cover Plate Mounted
OPTIONS (continued)
• Solenoid Voltage – 120VAC, 24VDC, 48VDC, or 125VDC.
• Auxiliary Switch – double pole/double throw (DP/DT) is standard. The DP/DT switch is UL recognized and rated
10A 250VAC or VDC, or 15A 125VAC or VDC. Four pole/double throw (4P/DT) is available.
• Gasket – available for weatherproofing with Housed option.
• Multi-Cylinder - up to 2 cylinders available. The two-cylinder SKRU can be keyed either of two ways, 1) both
keys released together once the solenoid is energized or, 2) keyed so that one initiating key and the external signal
to the solenoid are required to release a held key. See SD Series Data Sheet 2.2B (Unhoused) and/or SD Series
Data Sheet 2.2C (Housed) for details.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
Notes:
1) If both the signal lamp and push button are selected as options, the SKRU will be supplied with a combination
signal lamp and push button as a single device.
2) If the Cover Plate Only mounting option is selected, the Unhoused SKRU will be mounted to an aluminum cover
plate. Reference the drawing on page 4 of this Data Sheet.
3) Two-Cylinder SKRU information is shown on SD Series Data Sheets for 2-Key Unhoused (2.2B) and 2-Key
Housed (2.2C).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Unhoused, Front and Top View
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) Three 3/8”-16 x 1” deep tapped holes for mounting (3 holes).
2) Mounting panel or coverplate.
3) Clearance dimension from back of panel.
4) Clearance dimension.
5) Operating key shown in held position.
6) See cover plate drawing on page 4 of this Data Sheet for lock cylinder and mounting hole dimensions for
unhoused One-Key SKRU.
SD SERIES - SPECIFICATION DATA SHEET 2.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Cover Plate Dimensions
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTE: This drawing provides the lock cylinder and mounting hole dimensions pertaining to unhoused SKRUs. It
also provides overall dimensions and mounting hole locations for the cover plate if SKRU is purchased with cover
plate only.
SD SERIES - SPECIFICATION DATA SHEET 2.2A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Housed
The Type SKRU consists of an interlock, a solenoid, and an auxiliary switch. The solenoid is designed to permit
removal of the interlock key in response to an external electric signal. The auxiliary switch is a quick-make, quickbreak device, which operates when the interlock key is rotated. Normally, the key is trapped in the SKRU and the
solenoid is de-energized. To release the key, a signal must be sent to the solenoid from an external source.
The SKRU is typically used in combination with other KIRK® key interlocks. The SKRU can be manufactured with
various mechanical and electrical options. The push button and/or the LED signal lamp are the most popular
options. All components are UL recognized. The solenoid, optional signal lamp and optional push button are wired
out to a terminal block along with some of the aux contacts. Please reference the wiring diagrams on our website
for specific details.
The main body of the SKRU is constructed of brass. The optional cover plate is aluminum and optional housing is
made from fiberglass reinforced polyester.
OPTIONS
• Mounting Options – unhoused, cover plate only (shown on next page), or housed. The photo above shows the
housed SKRU. The unhoused version is shown on SD Series Data Sheet 2.2. The housed Type SKRU is
available front panel mounted or back panel mounted. See the drawings on page 4, as well as the SD Series
Ordering Guide.
• Key Removable – energized or de-energized. Please specify. Key removable energized is by far the most
common.
• LED Signal Lamp – indicates that the external electric signal has been sent to the solenoid.
• Push Button – connected in series with the solenoid - the push button must be pressed to allow the external
electric signal to energize the solenoid.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Cover Plate Mounted
OPTIONS (continued)
• Solenoid Voltage – 120VAC, 24VDC, 48VDC, or 125VDC.
• Auxiliary Switch – double pole/double throw (DP/DT) is standard. The DP/DT switch is UL recognized and rated
10A 250VAC or VDC, or 15A 125VAC or VDC. Four pole/double throw (4P/DT) is available.
• Gasket – available for weatherproofing with Housed option.
• Multi-Cylinder - up to 2 cylinders available. The two-cylinder SKRU can be keyed either of two ways, 1) both
keys released together once the solenoid is energized or, 2) keyed so that one initiating key and the external signal
to the solenoid are required to release a held key. See SD Series Data Sheet 2.2B (Unhoused) and/or SD Series
Data Sheet 2.2C (Housed) for details.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
Notes:
1) If both the signal lamp and push button are selected as options, the SKRU will be supplied with a combination
signal lamp and push button as a single device.
2) If the Cover Plate Only mounting option is selected, the Unhoused SKRU will be mounted to an aluminum
coverplate. Reference the housed SKRU drawing on SD Series Data Sheet 2.2A and note the overall dimensions
and mounting hole locations.
3) Two-Cylinder SKRU information is shown on SD Series Data Sheets for 2-Key Unhoused (2.2B) and 2-Key
Housed (2.2C).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Front & Side View
NOTES:
1) Four .313" dia. (7.94mm) holes for 1/4" mounting bolts (located on back of housing).
2) 1.0625" dia. conduit opening on side.
3) Location of signal light or push button (optional accessory).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
Top View
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
4) Cover. The top drawing shows a front panel mounted unit. The bottom drawing shows a back panel mounted
unit.
SD SERIES - SPECIFICATION DATA SHEET 2.2B
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
2-Key, Unhoused
The Type SKRU consists of an interlock, a solenoid, and an auxiliary switch. The solenoid is designed to permit
removal of the interlock key in response to an external electric signal. The auxiliary switch is a quick-make, quickbreak device, which operates when the interlock key is rotated. Normally, the keys are trapped in the SKRU and
the solenoid is de-energized. To release the keys, a signal must be sent to the solenoid from an external source.
The SKRU is typically used in combination with other KIRK® key interlocks. The SKRU can be manufactured with
various mechanical and electrical options. The push button and/or the LED signal lamp are the most popular
options. All components are UL recognized. The solenoid, optional signal lamp and optional push button are wired
out to a terminal block along with some of the auxiliary contacts. Please reference the wiring diagrams on our
website for specific details.
The main body of the SKRU is constructed of brass. The optional cover plate is aluminum and the optional housing
is made from fiberglass reinforced polyester.
OPTIONS
• Mounting Options – unhoused (shown pictured above), cover plate only (shown on next page), or housed (shown
on SD Series Data Sheet 2.2C).
• Key Removable – the 2-key SKRU can be keyed either of two ways: 1) both keys normally held - both keys
released together once the solenoid is energized. 2) one key normally held - the held key is released once the
solenoid is energized and the initiating key is inserted and turned.
• LED Signal Lamp – indicates that the external electric signal has been sent to the solenoid.
• Push Button – connected in series with the solenoid - the push button must be pressed to allow the external
electric signal to energize the solenoid.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2B
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
2-Key, Cover Plate Mounted
OPTIONS (continued)
• Solenoid Voltage – 120VAC, 24VDC, 48VDC, or 125VDC.
• Auxiliary Switch – double pole/double throw (DP/DT) is standard. The DP/DT switch is UL recognized and rated
10A 250VAC or VDC, or 15A 125VAC or VDC. Four pole/double throw (4P/DT) is available.
• Gasket – available for weatherproofing with Housed option.
• Multi-Cylinder - up to 2 cylinders available. The two-cylinder SKRU can be keyed either of two ways, 1) both
keys released together once the solenoid is energized or, 2) keyed so that one initiating key and the external signal
to the solenoid are required to release a held key.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
Notes:
1) If both the signal lamp and push button are selected as options, the SKRU will be supplied with a combination
signal lamp and push button as a single device.
2) If the Cover Plate Only mounting option is selected, the Unhoused SKRU will be mounted to an aluminum cover
plate. See the photo above and Data Sheet 2.2C.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2B
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
2-Key, Unhoused
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) Operating key shown in held position.
2) Initiating key if “DE”, second operating key if “EE”. See SD Series Ordering Guide.
3) 3/8”-16 x 1” deep tapped holes for mounting (4 holes).
4) Clearance dimension.
5) See cover plate drawing on page 3 of Data Sheet 2.2c for lock cylinder and mounting hole dimensions for
unhoused Two-key SKRU.
SD SERIES - SPECIFICATION DATA SHEET 2.2C
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
2-Key, Housed
NOTE: Effective July 2010 - The 2-key housed SKRU enclosure is now made from fiberglass reinforced polyester.
The Type SKRU consists of an interlock, a solenoid, and an auxiliary switch. The solenoid is designed to permit
removal of the interlock key in response to an external electric signal. The auxiliary switch is a quick-make, quickbreak device, which operates when the interlock key is rotated. Normally, the keys are trapped in the SKRU and
the solenoid is de-energized. To release the keys, a signal must be sent to the solenoid from an external source.
The SKRU is typically used in combination with other KIRK® key interlocks. The SKRU can be manufactured with
various mechanical and electrical options. The push button and/or the LED signal lamp are the most popular
options. All components are UL recognized. The solenoid, optional signal lamp and optional push button are wired
out to a terminal block along with some of the auxiliary contacts. Please reference the wiring diagrams on our
website for specific details.
The main body of the SKRU is constructed of brass. The optional cover plate is aluminum and the optional housing
is made from fiberglass reinforced polyester.
• Mounting Options– housed (shown above), cover plate only (shown on next page), or unhoused (shown on SD
Series Data Sheet 2.2B).
• Key Removable– the 2-key SKRU can be keyed either of two ways: 1) both keys normally held-both keys
released together once the solenoid is energized. 2) one key normally held-the held key is released once the
solenoid is energized and the initiating key is inserted and turned.
• LED Signal Lamp– indicates that the external electric signal has been sent to the solenoid..
• Push Button– connected in series with the solenoid- the push button must be pressed to allow the external
electric signal to energize the solenoid.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2C
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
2-Key, Cover Plate Mounted
OPTIONS (continued)
• Solenoid Voltage – 120VAC, 24VDC, 48VDC, or 125VDC.
• Auxiliary Switch – double pole/double throw (DP/DT) is standard. The DP/DT switch is UL recognized and rated
10A 250VAC or VDC, or 15A 125VAC or VDC. Four pole/double throw (4P/DT) is available.
• Gasket – available for weatherproofing with Housed option.
• Multi-Cylinder - up to 2 cylinders available. The two-cylinder SKRU can be keyed either of two ways, 1) both
keys released together once the solenoid is energized or, 2) keyed so that one initiating key and the external signal
to the solenoid are required to release a held key.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
Notes:
1) If both the signal lamp and push button are selected as options, the SKRU will be supplied with a combination
signal lamp and push button as a single device.
2) If the Cover Plate Only mounting option is selected, the Unhoused SKRU will be mounted to an aluminum cover
plate. See the photo above and the drawing on page 3 of this data sheet.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.2C
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
2-Key, Cover Plate Dimensions
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTE: This drawing provides the lock cylinder and mounting hole dimensions pertaining to unhoused Two-key
SKRUs. It also provides overall dimensions and mounting hole locations for the cover plate if SKRU is purchased
with cover plate only.
SD SERIES - SPECIFICATION DATA SHEET 2.2C
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKRU - Solenoid Key Release Unit
2-Key, Housed
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
WIRING DIAGRAM 156-649
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
SKRU Wiring Diagram
156-649
NOTES:
1) Circuit A - Input
2) Customer to wire this side only.
3) Double-pole, double-throw (DP/DT) auxiliary switch. Circuits 3-4, 6-7 are closed and circuits 4-5, 7-8 are open
when the key is trapped in the interlock.
4) KIRK® key interlock with key normally trapped in lock. Key removable when solenoid is energized.
5) Solenoid (normally de-energized).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
WIRING DIAGRAM 156-650
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
SKRU with Pushbutton
156-650
NOTES:
1) Circuit A - Input
2) Customer to wire this side only.
3) Double-pole, double-throw (DP/DT) auxiliary switch. Circuits 3-4, 6-7 are closed and circuits 4-5, 7-8 are open
when the key is trapped in the interlock.
4) KIRK® key interlock with key normally trapped in lock. Key removable when solenoid is energized.
5) Solenoid (normally de-energized).
6) Pushbutton - close to energize solenoid.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
WIRING DIAGRAM 156-617
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
SKRU with Signal Lamp
156-617
NOTES:
1) Circuit A - Input
2) Customer to wire this side only.
3) Double-pole, double-throw (DP/DT) auxiliary switch. Circuits 3-4, 6-7 are closed and circuits 4-5, 7-8 are open
when the key is trapped in the interlock.
4) KIRK® key interlock with key normally trapped in lock. Key removable when solenoid is energized.
5) Solenoid (normally de-energized).
6) Signal lamp indicates when solenoid is energized.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
WIRING DIAGRAM 156-618
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
SKRU with Pushbutton and Signal Lamp
156-618
NOTES:
1) Circuit A - Input
2) Customer to wire this side only.
3) Double-pole, double-throw (DP/DT) auxiliary switch. Circuits 3-4, 6-7 are closed and circuits 4-5, 7-8 are open
when the key is trapped in the interlock.
4) KIRK® key interlock with key normally trapped in lock. Key removable when solenoid is energized.
5) Solenoid (normally de-energized).
6) Pushbutton - close to energize solenoid.
7) Signal lamp indicates when solenoid can be energized.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SOLENOID POWER RATINGS
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Solenoid Power Ratings
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type Thermoplastic Bodied Switch
Thermoplastic bodied electrical contacts offer the best protection against water ingress. These auxiliary contacts
are available for four styles of the SD Series mechanical bolt interlocks and two styles of access interlocks:
Mechanical Bolt Interlocks:
• Type F (SD Series Data Sheet 1.1)
• Type B (SD Series Data Sheet 1.2)
• Type T (SD Series Data Sheet 1.3)
• Type FN (SD Series Data Sheet 1.7)
Access Interlocks:
• Type D (SD Series Data Sheet 1.4)
• Type DM (SD Series Data Sheet 1.5)
The contacts can be used to provide remote indication of the lock bolt position or to switch control circuitry.
Contact Status for Type F, B, T, FN & D: (Page 3)
The contacts respond directly to the movement of the locking bolt when the key is turned. Option A comes with 2
N/O & 1 N/C 5 amp contacts (locking bolt withdrawn). Option B comes with 4 N/O & 2 N/C 5 amp contacts (locking
bolt withdrawn). The contacts change state when the key is turned and the locking bolt is extended.
To order the auxiliary contact option, put "A" or "B" in column four of the interlock part number. Reference the SD
Series Ordering Guide and the drawing on page 3.
Contact Status for Type DM: (Page 4)
The contacts respond to the position of the DM latch bolt. When the door is locked, two sets of contacts are closed
and one set is open. When the door is unlocked, the contacts switch state (two sets open, one set closed). NOTE:
Option B is not available on the Type DM.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type Thermoplastic Bodied Switch
• Standards: VDE 0660 T200, DIN EN 60947-5-1, IEC 60947-5-1.
• Utilization Category: AC-15, Ue/Ie 240V/1,5A.
• Approvals: cCSAus B300 (same polarity).
• Enclosure & Cover: Thermoplastic, glass fibre reinforced (UL 94-V0).
• Hinged Snap Lid: For quick and easy access (screwdriver release). Lid hinges open to 135 degrees.
• Forced Disconnection of NC Contacts: To IEC/EN 60947-5-1, Annex K.
• Temperature Range: -30 degrees C (ice free) to +80 degrees C.
• Mechanical Lifecycle: 200,000 operations.
• Screw Terminals: Self-lifting clamps for easy wiring, Numbered in accordance with DIN EN 50013.
• Ingress Protection: IP65 acc. to EN 60529.
• Rated Insulation Voltage: 250V AC.
• Rated Operational Voltage: 240V.
• Continuous Thermal Current: 5 Amp.
• Cable Entrance: M20 x 1.5 thread. The switch is supplied with .20 -.35” cable gland installed. An M20 x 1/2” FIP
adapter is supplied with each switch for use with 1/2” conduit.
• EU Conformity: CE Marked
• Weight: The A Option adds 9.6oz / 272g and the B Options adds 16oz / 453g to the weight of an interlock.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type Thermoplastic Bodied Switch
on Type F, B, T, FN & D Interlocks
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
Option A is shown on the left, Option B is shown on the right.
SD SERIES - SPECIFICATION DATA SHEET 2.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type Thermoplastic Bodied Switch
on Type DM Interlock
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type S Auxiliary Switches
Type S auxiliary switches are slow-make, slow-break devices that respond directly to the movement of the lock bolt
when the key is rotated. One, two, three or four sets of contacts are available. The Type S auxiliary switches can
be furnished on the following interlocks:
• Type F (see SD Series Data Sheet 1.1)
• Type B (see SD Series Data Sheet 1.2)
• Type T (see SD Series Data Sheet 1.3)
• Type D (see SD Series Data Sheet 1.4)
Primary uses:
• Disconnect switches in control circuits.
• Indicate key/lock status to SCADA and other monitoring systems.
See Table 1 (page 3) for current ratings.
When ordering the S Switch option, please put the appropriate number in column four of the interlock part number:
"3" = Type S = 1 set of contacts
"4" = Type SS = 2 sets of contacts
"5" = Type SSS = 3 sets of contacts
"6" = Type SSSS = 4 sets of contacts
Reference the Interlock Ordering Guide and Table 2 (page 3).
The switch is normally mounted with the cover on the same side as the lock cylinder. If necessary, the switch can
be mounted so that the switch cover is facing backwards (or "Reversed"), allowing access to the switch for an
interlock that is mounted on the back of a panel. To order the "Reverse Switch Housing" option, put the letter "R" in
column 15 of the part number. Reference the SD Series Ordering Guide. Unless specified, the switch housing will
be mounted in the normal arrangement.
Note: Auxiliary switches cannot be field installed on existing KIRK® interlocks.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type S Auxiliary Switches
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 3/4” Conduit opening on S Switch.
2) 1” Conduit opening on SS, SSS & SSSS Switch.
3) SSS Switch front view – 3 make & 3 break contacts.
4) SSSS Switch front view – 4 make & 4 break contacts.
5) Cover. Left drawing shows normal Type S switch mounting. Right drawing shows reverse Type S switch
mounting.
SD SERIES - SPECIFICATION DATA SHEET 2.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type S Auxiliary Switches
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type S Auxiliary Switches
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
The drawing on the left shows a Type F interlock with a Type SS switch. The locking bolt is in the extended
position with the key removed. The sets of contacts in position 1 (closest to the lock cylinder) and position 3 are
closed. The sets of contacts in postions 2 and 4 are open.
The drawing on the right shows a Type F interlock with a Type SS switch. The locking bolt is in the withdrawn
postion and the key is trapped. The sets of contacts in postions 2 and 4 are now closed, while the sets of contacts
in positions 1 and 3 are now open.
SD SERIES - SPECIFICATION DATA SHEET 2.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type K Auxiliary Switch
The Type K auxiliary switch is a quick-make, quick-break device capable of handling relatively large currents. The
switch is mounted on the end of the interlock as shown. The Type K auxiliary switch can be mounted on the
following interlocks:
• Type F (see SD Series Data Sheet 1.1)
• Type B (see SD Series Data Sheet 1.2)
• Type T (see SD Series Data Sheet 1.3)
• Type D (see SD Series Data Sheet 1.4)
The DPDT switch is UL and CSA recognized and rated 10A 250VAC or VDC, or 15A 125VAC or VDC. The toggle
switch is operated in response to the movement of the interlock locking bolt. However, the Type K switch remains
in its initial position until the locking bolt has traveled substantially the full 3/4” distance to its second position.
Therefore, the Type K auxiliary switch does not give an indication as to the initial movement of the locking bolt.
To order the K Switch option, put the number “1” in column four of the interlock part number. Reference the
Interlock Ordering Guide.
The switch is normally mounted with the cover on the same side as the lock cylinder. If necessary, the switch can
be mounted so that the switch cover is facing backwards (or “Reversed”), allowing access to the switch for an
interlock that is mounted on the back of a panel, for example. To order the "Reverse Switch Housing” option, put
the letter “R” in column fifteen of the part number. Reference the Interlock Ordering Guide. Unless specified, the
switch housing will be mounted in the normal arrangement.
The switch housing is made of aluminum.
Note: Auxiliary switches cannot be field installed on existing KIRK® interlocks.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type K Auxiliary Switch
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 3/4” conduit opening.
2) DPDT toggle switch.
CONTACT ARRANGEMENT:
• Lock Bolt Extended Contacts Closed: 1-2, 4-5
• Lock Bolt Withdrawn Contacts Closed: 2-3, 5-6
SD SERIES - SPECIFICATION DATA SHEET 2.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type K Auxiliary Switch
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
3) Cover. Top drawing shows normal Type K switch mounting. Bottom drawing shows reverse Type K switch
mounting.
SD SERIES - SPECIFICATION DATA SHEET 2.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type K Auxiliary Switch
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
• Drawing on the left shows a Type B interlock with Type K switch.
• Drawing on the right shows a Type F interlock with Type K switch.
SD SERIES - SPECIFICATION DATA SHEET 2.6
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKPM - Solenoid Key
Panel Mounted
The Type SKPM is a single cylinder interlock similar to the standard, unhoused SKRU in function but is more
compact and is ideal where space is limited. The SKPM is designed to permit removal of the interlock key in
response to an electric signal. However, instead of utilizing a terminal block, the SKPM is arranged so that the
customers leads are wired directly to the solenoid and to the auxiliary switches. The SKPM is designed so that the
key is removable only when the solenoid is energized. All components are UL recognized. Each SKPM is furnished
with two tandem mounted Sq D Class 9001 KA1 contact blocks for a total of 2 N.O. and 2 N.C. auxiliary contacts.
The switch rating is:
120VAC - 60A make / 6A break / 10A continuous
240VAC - 30A make / 3A break / 10A continuous
125VDC - 0.55A make & break / 2.5A continuous
The SKPM is not offered with any type of housing. See SD Series Data Sheet 2.2 (SKRU) if a housed solenoid key
release is required.
OPTIONS
• Solenoid Voltage – 120VAC, 24VDC, 48VDC, or 125VDC.
• LED Signal Lamp – an LED signal lamp kit is available to be wired by the installer. Shipped loose.
• Push Button – a push button kit is available to be wired by the installer. Shipped loose.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
• Mounting Bolts – 1/4”-20 x 5/8” hex head made of stainless steel. Tamperproof mounting bolts are also available
(1/4”-20 x 3/4”).
Note: If both the LED signal lamp and push button are selected, a combination signal lamp and push button device
will be furnished.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.6
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type SKPM - Solenoid Key
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 1/4”-20 tapped mounting holes (2 holes).
2) .187 QC terminals.
3) Contact block terminal screws (8 screws).
4) Contact Arrangement: On the left is the contact position with the solenoid de-energized and key trapped contacts 1 & 2 are open, 3 & 4 are closed. On the right is the contact position with the solenoid energized and the
key released - contacts 1 & 2 are closed, 3 & 4 are open.
WIRING DIAGRAM for SKPM
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
SKPM Wiring Diagram
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) Solenoid contact terminals.
2) Auxiliary contacts: two Square D Class 9001 KA1 contact blocks. Contacts 1-2 normally open and contacts 3-4
normally closed. The contacts change state when, after the solenoid is energized, the key is turned and removed.
3) KIRK® key interlock - key is normally retained in lock. Key is removable when solenoid is energized.
4) Solenoid (normally de-energized).
5) Optional pushbutton - close to energize solenoid.
6) Optional signal lamp indicates when solenoid is energized.
SD SERIES - SPECIFICATION DATA SHEET 2.7
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type TDKRU - Time Delay Key Release
Housed
The Type TDKRU is designed to permit removal of the initially held (or secondary) interlock key after insertion of a
primary key and the elapse of a predetermined time delay. The TDKRU is comprised of two key interlocks, a timing
device, a solenoid, and a signal light for indication.
The photograph illustrates the TDKRU in the normal position - a key is retained in the secondary interlock. A
primary or initiating key is introduced to start the time delay. After a predetermined delay, the solenoid is energized
(the LED signal lamp illuminates to indicate the energized state) – permitting the secondary key to be rotated and
withdrawn for further steps in the overall interlock scheme. After removing the secondary key, the primary key is
retained in the TDKRU.
Should the primary key be rotated and removed during the time delay period, the timing device instantly returns to
its original position.
OPTIONS
• Mounting Options – available housed in a fiberglass reinforced polyester enclosure or unhoused with cover plate
only.
• Timing Device – the time delay can be any length of time from 1 second to 30 minutes. Note: The duration of the
time delay must be set by the customer during installation of the TDKRU. Two timers are available: 1) 1-300
seconds, 2) 3-30 minutes. The correct timer must be specified at the time of order.
• Voltage – 120VAC, 24VDC, 48VDC, or 125VDC.
• Stamp Key Interchange - specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc. - up to 5 characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
• Dust Covers - see SD Series Data Sheet for Dust Covers (3.1) for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.7
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type TDKRU - Time Delay Key Release
Housed
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) 1.063” (27mm) diameter clearance hole.
2) Six .312 (7.94mm) diameter holes for mounting “Coverplate Only” model (6 holes).
WIRING DIAGRAM 235-162
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
www.kirkkey.com
5) Terminal block
6) Power source
7) Timing Relay
Normal Operating Conditions:
1) Key A-2 is out of interlock.
2) Key A-3 is held in interlock.
3) Auxiliary switch is open.
4) Signal lamp is de-energized.
5) Solenoid is de-energized.
6) Time delay relay is de-energized.
Operating Sequence:
1) Insert key A-2 in initiating interlock in time delay key release unit and turn to start timing mechanism. Key A-2 is
now held.
2) After a predetermined time delay interval (set by customer at time of installation), the time delay relay closes the
circuit to the solenoid and signal lamp. NOTE: the timing mechanism must be energized during the entire operating
cycle. In the event of power failure during the time delay period, the timing device instantly returns to its original
position.
3) Signal lamp is energized.
4) Solenoid is energized and plunger is withdrawn permitting operation of interlock.
5) Turn key A-3. Key A-3 can now be removed from the unit to proceed with the operating sequence.
Reverse sequence to restore time delay key release unit to normal operation conditions.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
NOTES:
1) Signal lamp
2) Solenoid
3) KIRK® key interlocks
4) Auxiliary switch
TDKRU Wiring Diagram
235-162
SD SERIES - SPECIFICATION DATA SHEET 2.8
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type PPS - Panel Mounted Switch
(20 Amp Shown)
The SD Series Power Panel Switch is a key actuated, rotary, two-position switch designed for isolation or switching
of control circuitry. It is available with switch ratings of 20, 25, 40 or 63A. Perfectly suited for applications requiring
temporary off-load isolation. The switch is UL Listed and CSA Approved.
The PPS is designed so that the key will rotate 90 degrees clockwise to the trapped position. Rotation of the key to
either the trapped or to the released position will cause the switch contacts to change state.
The standard PPS can be panel mounted with 1/4” diameter (7mm) mounting bolts. The quantity and location of
the mounting holes are shown on the drawings that follow.
An optional IP65 Polycarbonate enclosure allows surface mounting of the PPS using four bolts suitable for your
specific application. Enclosure photo and drawing shown on pg 3.
Standard switch contact arrangements are shown in the chart on pg 2. Consult the factory for other contact
arrangements. Switch ratings and specifications are outlined on SD Series Data Sheet 2.8a.
The SD Series PPS key is nickel-silver and lock body is made from brass.
Options: Switch Rating and Contact Arrangements–see chart on page 2 and ordering guide on page 4.
Mounting Options–Panel Mounting (standard) or Enclosed in an IP65 Polycarbonate enclosure. The enclosed
version is supplied with an (M20) .20-.35” cable gland and lock nut.
Stamp Key Interchange–Specify an alphanumeric code to be stamped on the key and cylinder face (e.g. A1, A2,
K1, etc.–up to five characters). See SD Series Data Sheet for Keys (3.4) and Terminology (4.1) for details.
Dust Cover–See SD Series Data Sheet 3.1 for details.
Mounting Bolts–See SD Series Data Sheet 3.2 for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.8
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type PPS - Panel Mounted Switch
(20 Amp Shown)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.8
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type PPS - Panel Mounted Switch
(20 Amp Shown)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.8
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type PPS - Panel Mounted Switch
SD Series - Ordering Guide
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.8A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type PPS - Panel Mounted Switch
SD Series - Switch Ratings
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 2.8A
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Type PPS - Panel Mounted Switch
SD Series - Switch Ratings
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION SHEET 3.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Dust Cover
Push On (pages 1-2 of 4)
Dust Covers protect the lock cylinder and key from adverse environmental conditions such as moisture, dirt, and
sleet. The Dust Covers also protect the key from accidental damage. We highly recommend dust covers for
outdoor installations.
Push On (Part # 234729501)
The Push On Dust Cover can be placed over the lock cylinder when the key is in the held position or removed.
One end of the dust cover chain is attached to the top of the dust cover and serves to retain the cover when
removed. The other end has a mounting ring, which is secured under a mounting bolt head.
On a multi-cylinder interlock, all of the Push On Dust Covers are tethered together and secured with a single
mounting ring for your convenience.
To order the Push On Dust Cover put the letter “C” in the appropriate column of the interlock part number.
Reference the SD Series Ordering Guide.
The Push On Dust Cover is made from stainless steel.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION SHEET 3.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Dust Cover
Push On (pages 1-2 of 4)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) Outline of Push On cover.
SD SERIES - SPECIFICATION SHEET 3.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Dust Cover
Flip Open (pages 3-4 of 4)
Dust Covers protect the lock cylinder and key from adverse environmental conditions such as moisture, dirt, and
sleet. The Dust Covers also protect the key from accidental damage. We highly recommend dust covers for
outdoor installations.
Flip Open (Part # FC501)
The Flip Open Dust Cover is hinged and is held closed with spring tension. It is designed to protect the lock
cylinder and key regardless of the position of the key. The Flip Open Dust Cover is attached to the lock cylinder
with a stainless steel set screw.
To order the Flip Open Dust Cover put the letter “F” in the appropriate column of the interlock part number.
Reference the SD Series Ordering Guide.
The Flip Open Dust Cover is made from stainless steel.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION SHEET 3.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Dust Cover
Flip Open (pages 3-4 of 4)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Mounting Bolts
Hex Head
Hex Head Mounting Bolts
Stainless steel (18-8), hex head mounting bolts are available. Hex head mounting bolts will be supplied when the
letter “M” is shown in the appropriate column of the interlock part number. Reference the SD Series Ordering
Guide.
Standard mounting bolt sizes:
a.) 3/8”-16 x 3/4” (for Type B & Unhoused Type SKRU)
b.) 3/8”-16 x 1-3/4” (for Type F, T, D and DM)
c.) 3/8”-16 x 2-1/4” (for Type D latchblock & Type U lock)
d.) 1/4”-20 x 5/8” (for Type FN, TPS and SKPM)
e.) 1/4”-20 x 1-3/4” (for Type NT)
Options:
The 3/8”-16 hex head bolts can be provided with a through hole in which a sealing wire can be secured.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Mounting Bolts
Tamperproof
Tamperproof Mounting Bolts
Stainless steel (18-8) tamperproof mounting bolts are available. Button Head Socket bolts will be supplied when
the letter “T” is shown in the appropriate column of the interlock part number. Reference the SD Series Ordering
Guide.
Standard mounting bolt sizes:
a.) 3/8”-16 x 3/4” (for Type B & Unhoused Type SKRU)
b.) 3/8”-16 x 1-3/4” (for Type F, T, D and DM)
c.) 3/8”-16 x 2-1/4” (for Type D latch block & Type U lock)
d.) 1/4”-20 x 3/4” (for Type FN, TPS, and SKPM)
e.) 1/4”-20 x 2” (for Type NT)
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.2
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Mounting Bolts
Tamperproof Tools
A tamperproof key tool or tamperproof bit tool is required to install the tamperproof mounting bolts.
• 3/8" Bolt Key (Part #21HKHKA) - shown at top of picture.
• 1/4" Bolt Key (Part #15HKHKA) - shown middle of picture.
• 3/8" Bolt Bit (Part #21HKHB) - shown at bottom of picture.
• 1/4" Bolt Bit (Part #15HKHB) - similar to 3/8" bolt bit shown above but fits 1/4" tamperproof mounting bolts.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Adapter Plates (Mounting Plates)
Short D Plate
The Short D Plate (Part # 80329001) is made of brass and fastened to the back of a single cylinder SD Series
Type D interlock to allow front mounting (see SD Series Data Sheet 1.4). The thickness of the Short D plate is 3/8”.
To order this plate with your SD Series Type D interlock, put the letter “P” in column fourteen of the interlock part
number - reference the SD Series Ordering Guide.
NOTES:
1) 3/8"-16 tapped holes for mounting (4 holes).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Adapter Plates (Mounting Plates)
Long D Plate
The Long D Plate (Part # 80329002) is made of brass and fastened to the back of a multi-cylinder SD Series Type
D interlock to allow front mounting (see SD Series Data Sheet 1.4). The thickness of the Long D Plate is 3/8”. To
order this plate with your multi-cylinder SD Series Type D interlock, put the letter “P” in column fourteen of the
interlock part number - reference the SD Series Ordering Guide.
NOTES:
2) 3/8"-16 tapped holes for mounting (6 holes).
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.3
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Adapter Plates (Mounting Plates)
FN Plate
The FN Plate (Part # 155987001) is made of brass and fastened to the end of a SD Series Type FN interlock to
allow alternative mounting scenarios (see SD Series Data Sheet 1.7). The thickness of the FN Plate is 1/4”. To
order this plate with your SD Series Type FN interlock, put the letter “P” in column fourteen of the interlock part
number - reference the SD Series Ordering Guide. The plate (when ordered) will be bolted to your Type FN
interlock.
NOTES:
3) .406" (10.32mm) dia. holes for mounting bolts (2 holes).
4) When ordering the FN Plate, consider adding 1/4” to the SD Series Type FN locking bolt length to compensate
for the thickness of the FN Plate.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Interlock System Keys
KIRK® SD Series Key (part # K7006)
KIRK® SD Series interlocks are manufactured with 7-pin tumbler lock cylinders. The keys are made of nickel-silver
and can be furnished to you only by Kirk Key Interlock Company due to the proprietary key section.
OPTIONS
Stamp Key Interchange – specify an alphanumeric code to be stamped on the cylinder face and the key (e.g. A1,
A2, B1, etc). The key interchange can be up to five characters long.
Duplicate Keys
Each SD Series interlock is supplied with a key in its lock. These keys are needed during installation of the
interlock(s) on equipment. This then provides more keys than are necessary for operation of the interlock system.
Once the interlocks have been installed, all extra keys should be removed from the system and destroyed or
retained by a responsible person.
If additional keys are required due to loss or damage, please:
1. Print the Duplicate Key Release Form from our web site.
2. Complete the form and sign your name.
3. Fax the form and your purchase order to Kirk Key Interlock Company at (330) 833-1528 for immediate delivery.
Record Keeping
With our extensive record keeping dating back to 1945, you can rely on Kirk Key Interlock Company to coordinate
and number your keys in coordination with existing equipment currently in service.
Caution: The existence of duplicate keys in a KIRK® interlock system may compromise the safety of the system.
To ensure correct operation of the KIRK® interlock system, it is necessary to remove all loosely or removably held
keys before operating the equipment on which the interlocks are mounted. Keys removed from an interlock system
should be destroyed or retained by authorized personnel.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 3.4
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Interlock System Keys
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
NOTES:
1) Stamp Key Interchange (Optional).
2) Cylinder Combination Number: always stamped on the key and lock – assigned by Kirk Key Interlock Company.
SD SERIES - SPECIFICATION DATA SHEET 3.5
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
Graphite Lubrication Kit
SD Series interlocks should be periodically lubricated with a small amount of dry powdered graphite. Do not use oil
of any type as the oil will collect dirt and "gum up" the lock cylinder so that it will not operate.
Kirk Key Interlock Company offers a Graphite Lubrication Kit (part number GL-1) complete with instructions for
use. The powdered graphite is supplied in a plastic tube that can be "squeezed" to force a small amount of
graphite into the lock cylinder. Work the key in and out and turn the key a few times in order to distribute the
graphite inside the lock cylinder.
Apply a small amount of graphite to each lock cylinder as part of your regular maintenance program in order to
keep your interlocks working smoothly.
NOTE: Stainless steel dust covers should be utilized to protect the lock cylinders when located outdoors or in a
demanding environment. Dust covers are available separately and can be easily added to any interlock.
If the interlock has been filled with oil or is not operating due to dirt and contamination inside the lock cylinder:
Using an eye-dropper or syringe, force mineral spirits into the lock cylinder and try to work the key to enable the
cleaning fluid to reach all internal parts of the lock cylinder. After allowing time for the mineral spirits to clean the
internal parts, use compressed air to gently and thoroughly dry the internals of the interlock. Do not use highpressure air as damage could occur to the springs, pins, and drivers inside the lock cylinder. After thoroughly
drying the interlock, lubricate the lock cylinder with a small amount of powdered graphite per the instructions
above.
Note that two applications of mineral spirits may be necessary for interlocks that are badly contaminated with dirt
and oil.
If the interlock will not operate after following the above procedures, contact Kirk Key Interlock Company for a
Return Authorization Form and return the interlock to us for repair. Kirk Key InterlockCompany will quickly repair
and recondition all interlocks for a nominal cost.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 4.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
NOTES:
1) Housing
2) Locking Bolt
3) Mounting Holes
4) Key Interchange
KIRK® Key Interlock Terminology
5) Cylinder Combination Number
6) Lock Cylinder
7) Nameplate
What is a key interlock?
A key interlock is a safety device applied to two or more moveable parts, preventing (or allowing) a movement or
operation of one part only when another part is locked in a predetermined position. KIRK® key interlocks operate
on the principle that the key can be removed only when the locking bolt is in a predetermined position.
Important information required when ordering key interlocks:
• Which lock type will physically fit on each device in your application?
• How is the interlock scheme to work - what is the equipment sequence and various scenarios (if any)?
• What locking bolt length is required? Note: locking bolts are referenced in their withdrawn position and always
extend 3/4” when the key is turned.
• How many lock cylinders are required and what are the key removable positions?
• What is the name and location of the ultimate user of the interlocks? Kirk Key Interlock Company assigns key
cylinder numbers based on this information and records that information for each ultimate user.
• Is coordination with other interlocks required? If so, are the other interlocks existing interlocks or will another
manufacturer or contractor order interlocks for coordination?
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com
SD SERIES - SPECIFICATION DATA SHEET 4.1
Kirk Key Interlock Company
9048 Meridian Circle NW, North Canton, OH 44720
Phone: 234.209.9301 • Fax: 330.497.4400 • Toll Free: 800.438.2442
Email: sales@kirkkey.com
KIRK® Key Interlock Terminology
Notes:
1) Shell
2) Spring
3) Driver
4) Pin
5) Plug
6-8) Normal Orientation - Right-Handed - The lock cylinder is to the right of the locking bolt.
9) Opposite Hand Orientation - Left-Handed - The lock cylinder is to the left of the locking bolt. To order an
interlock opposite-hand, place an "H" in the appropriate column of the interlock part number. See SD Series
Ordering Guide for details.
Provided by NEPSI - Northeast Power Systems, Inc. (www.nepsi.com)
www.kirkkey.com