®
MODIFICATION
SERVICES
Details
LARGE ENCLOSURES
87743149 Rev. A
E 2000 Hoffman Enclosures Inc.
87558453 Rev. B
®
Table of Contents
Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MODIFICATION SERVICESTM Matrix: Disconnect Enclosures . . . . . . . . . . . . . . . . . . . . . . .
MODIFICATION SERVICESTM Matrix: Disconnect Enclosures . . . . . . . . . . . . . . . . . . . . . . .
MODIFICATION SERVICESTM Matrix: Industrial Enclosures . . . . . . . . . . . . . . . . . . . . . . . . .
MODIFICATION SERVICESTM Matrix: Industrial Enclosures . . . . . . . . . . . . . . . . . . . . . . . . .
1.0 Dimensional Modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.0 Finish Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1
2
3
4
5
6
7
2.1. Finish Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.0
4.0
Holes and Cutouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Component Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1. Tapped Holes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.2. Welded and Press–In Fasteners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.3. Mounting Strut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.0
Enclosure Mounting Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1. Floor–Stand Legs/Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2. Floor Mounting Angles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.0
Door Modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1. Hinging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.2. Gaskets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.3. Drip Shield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.4. Data Pocket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.5. Handles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.0
Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
7.1. Back Panel Options for A12–L, A21–X, A21–CPX, and A4L–2 Enclosures . . . . . . . . . . . . . . . . . . . 15
7.2. Back Panel Options for A28–1, A34–1S, and A34–1X Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7.3. Back Panel Options for A28–2, A34–2S, and A34–2X Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7.4. Back Panel Options for A28–3, A28–4, A28–5, and A28–6 Enclosures . . . . . . . . . . . . . . . . . . . . . . 18
7.4.1. A28–3 Back Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.4.2. A28–4 Back Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
7.4.3. A28–5 Back Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
7.4.4. A28–6 Back Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
7.5. Panel and Rack Angle Options for A30–1, A30–1DA, A30–2, A30–2DA and A4L–1 Enclosures . 24
7.5.1. Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.5.2. Side Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.5.3. Rack Mounting Angles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.5.3.1 A30–1 and A4L–1 Predefined Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.5.3.2 A30–1DA Predefined Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.5.3.3 A30–2 Predefined Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.5.3.4 A30–2DA Predefined Configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
®
7.6. Back Panel Options for A27–3, A27–4, and A27–5 Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.6.1. A27–3 Back Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.6.2. A27–4 Back Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.6.3. A27–5 Back Panel Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.7. Panel Options – Door Panels, Side Panels, Finish, and Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.7.1. Door Mounted Panels – All Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.7.2. Side Panels – Not Including A30 and A4L–1 Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.7.3. Panels Safety Orange – All Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.7.4. Panels Shipped Ahead – All Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.0
Structural Modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1. Lifting Eyes – All Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.2. Light Mounting Channel – All Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.3. Panel Mounting Strut – A30 and A4L–1 Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.4. Body Rails – All A34 and Multi–door Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.5. Body Stiffeners – All Applicable Double Door Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.6. False Bottom – A28 and A34 Enclosures Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
9.0
Environmental Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.1. Stamped in Louvers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
9.2. Louver Inserts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.3. Fan Packages and Grille Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9.4. Environmental Default Locations (Example Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
10.0 Window Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.1. Available Frame Style Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.2. Window Orientation for Frame Style Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.3. Window Pane Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
10.4. Instrumentation Style Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
11.0 Disconnect Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
11.1. Disconnect Provisions and Door–to–Door Interlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
11.2. Operator Adapter Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
12.0 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12.1. Fluorescent Light Kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12.2. Electrical Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12.3. Grounding Straps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12.4. Door Stop Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12.5. Gland Plates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
12.5.1. Default Configurations (Example Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
12.6. Keyboard Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
12.7. Folding Shelves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
12.8. A34 Modular Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
®
Preface
•
The purpose of this bulletin is to serve as a guide and design tool for engineers, designers, and project managers who need electrical enclosures in the shortest possible
turnaround time.
•
By following the simple guidelines set down in this bulletin, the very tangible benefit to
you will be turnaround times for ready–to–use electrical enclosures that are better than
you have ever experienced. This is true because all of the points contained herein are
supported by a mass customization manufacturing strategy at Hoffman.
•
How to get started – Please review the MODIFICATION SERVICES TM Matrix first. It is
the “backbone” of the guide and should answer most of your questions at a glance.
This matrix is supported by additional details presented in bullet format in the succeeding numbered sections.
•
Hoffman large enclosures are available in a variety of sizes and styles. The Hoffman
Specifier’s Guide or web site (www.hoffmanonline.com) can be used to assist you in the
selection of the proper enclosure for your specific needs. When ordering, select a standard size item from the Specifier’s Guide or specify a dimensional size change by indicating the enclosure family and size change within the limits noted below.
•
The contents of this bulletin will change periodically, as Hoffman receives additional
customer feedback on the scope of our Modification ServicesTM offering. It is advisable
to obtain the most current revision from our website (http://www.hoffmanonline.com) at
the beginning of a new project.
•
Other Hoffman publications that you should obtain when using this tool are:
Hoffman Specifier’s Guide
MODIFICATION SERVICES TM Finish Chart
MODIFICATION SERVICES TM Tooling Sizes and Shapes
MODIFICATION SERVICES TM Fastener Details
1
87743149 Rev. A
®
DISCON
NNEC
CT ENCL
LOSU
URES
S / ACCE
ESSO
ORIE
ES
MODIFICATION SERVICESTM Matrix: Disconnect Enclosures
NEMA 12 Modular Double Door Slave Enclosure
NEMA 12 Modular Single Door Disconnect Enclosure
NEMA 12 Modular Single Door Slave Enclosure
NEMA 12 Six Door Disconnect
NEMA 12 Five Door Disconnect
NEMA 12 Four Door Disconnect
NEMA 12 Three Door Disconnect
NEMA 12 Double Door Disconnect
NEMA 12 Single Door Disconnect
A34–EPT
A34–2X
A34–2S
A34–1X
A34–1S
A28–6
A28–5
A28–4
A28–3
A28–2
A28–1
2.1
A2 – Color out / White in
2
2.1
A3 – No Finish (uncleaned and unpainted)
2
2.1
A4 – No Finish (cleaned only – no paint)
2.1
A5 – Single Color in and out / Orange Door
2.1
A6 – Color out / White in / Orange Door
2.1
A7 – Gray out / White in / Orange Door
2.1
A8 – Gray in and out / Orange Door
2.1
A9 – Change to Gray in and out
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
A1 – Single Color in and out
2
2.1
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
5.1
Add Legs or Channel Base
5.2
Add Front and Rear Angles
5.2
Add End Angles
1
1
1
1
Delete / Replace Legs or Add Channel Base
5
5
5.0
6.1
Change to Continuous Hinges
6.1
Stainless Steel Hinge Pin
4
6.2
Gasket Shipped Loose
6
6.3
Add Dripshield and Drain Holes
6.3
Add Dripshield, but no Drain Holes
6.4
Delete Data Pockets and Pins
6.5
Add Defeaters to all Handles
6.5
Change to L50N Handle(s)
4
4
4
4
4
4
4
4
4
4
6
6
6
6
6
6
6
6
6
6
6
Change to Lift–off Hinges
4
6.1
I. Dimensional Modifications / Finish Options / Holes and Cutouts / Component Mounting Options / Enclosure Mounting Options / Door Modifications
Modification Applies
NEMA 12 Modular Double Door Disconnect Enclosure
Catalog
Description
Bulletin
Number
NEMA 12 Modular End Plate
A34–FEP
Family Name
NEMA 12 Modular Flat End Plate
A34–BAP
A21–X
A34–FGK
A21–CPX
NEMA 12 Modular Barrier Kit
NEMA 12 Double Door Right Hand Flange Disconnect
NEMA 12 Modular Gasket and Hardware Kit
NEMA 12 Double Door Centerpost Mounted Disconnect
Component Mounting Options: Panel
4.0
Component Mounting Options: Enclosure
4.0
Holes and Cutouts Panel
3.0
Holes and Cutouts Enclosure
3.0
87743149 Rev. A
2
E 2000 Hoffman Enclosures Inc.
Size Modifications
1.0
Notes: 1) See apporpriate section of the guide for a warning regarding this modification. 2) Cannot supply UL/CSA Label. 3) Drawing required for this option. 4) UL/CSA Type 1
label provided. 5) This modification cannot be done if the floor–stand legs have been omited. 6) See appropriate section of the guide for notes regarding type 3R labling.
7) Drawing required for non–default locations.
Brochure Ref. No.
®
DISCON
NNEC
CT ENCL
LOSU
URES
S / ACCE
ESSO
ORIE
ES
NEMA 12 Modular Single Door Disconnect Enclosure
NEMA 12 Modular Single Door Slave Enclosure
NEMA 12 Six Door Disconnect
NEMA 12 Five Door Disconnect
NEMA 12 Four Door Disconnect
NEMA 12 Three Door Disconnect
NEMA 12 Double Door Disconnect
NEMA 12 Single Door Disconnect
A34–2X
A34–2S
A34–1X
A34–1S
A28–6
A28–5
A28–4
A28–3
A28–2
A28–1
Add Blind Tapped Pads
8.2
Omit Light Mounting Strut
8.4
Delete Body Rails
8.5
Delete Body Stiffeners
8.6
Add False Bottom
1
1
1
1
1
1
1
8.1
1
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
10.4
Add Instrumentation Windows
10.1
Add Frame Style Windows
9.3
Add Fan Packages
9.2
Add Louver Plates and Filters
9.2
Add Louver Plates
9.1
Add Stamped Louvers and Filters to Doors
9.1
Add Stamped Louvers to Doors
4,7
11.1
Delete Disconnect
11.1
Delete Disconnect and Door to Door Interlock
11.1
Change to Preferred Cutout
11.2
Add Grounding Straps
Add Light Kits
12.2
Add Electrical Interlocks
12.3
12.4
Add Door Stop Kits
12.5
Add Gland Plates
12.6
Add Keyboard Box
12.7
Add Shelves
4
4
4
4
4
4
4
4
4
4
4
4
12.1
Add Operator Adapter Kit
MODIFICATION SERVICESTM Matrix: Disconnect Enclosures
NEMA 12 Modular Double Door Slave Enclosure
A34–EPT
Delete Back Panel(s)
7.0
Delete Back Panel and Studs
7.0
Add Back Panel(s)
7.0
Change Panel Configurations
7.7
Add Side Panels
7.7
Add Door Panels
7.7
Panels Painted Orange
7.7
Panels Shipped Ahead
II. Panel Options / Structural Modifications / Environmental Options / Windwo Options / Disconnect Options / Accessories
Modification Applies
NEMA 12 Modular Double Door Disconnect Enclosure
A34–FEP
Catalog
Description
Bulletin
Number
NEMA 12 Modular End Plate
A34–BAP
Family Name
NEMA 12 Modular Flat End Plate
A21–X
A34–FGK
A21–CPX
NEMA 12 Modular Barrier Kit
NEMA 12 Double Door Right Hand Flange Disconnect
NEMA 12 Modular Gasket and Hardware Kit
NEMA 12 Double Door Centerpost Mounted Disconnect
Delete Panel Studs
7.0
87743149 Rev. A
3
E 2000 Hoffman Enclosures Inc.
7.0
Notes: 1) See apporpriate section of the guide for a warning regarding this modification. 2) Cannot supply UL/CSA Label. 3) Drawing required for this option. 4) UL/CSA Type 1
label provided. 5) This modification cannot be done if the floor–stand legs have been omited. 6) See appropriate section of the guide for notes regarding type 3R labling.
7) Drawing required for non–default locations.
Brochure Ref. No.
®
MODIFICATION SERVICESTM Matrix: Industrial Enclosures
A12–L
A2 – Color out / White in
2
2.1
A3 – No Finish (uncleaned and unpainted)
2
2.1
A4 – No Finish (cleaned only – no paint)
2.1
A5 – Single Color in and out / Orange Door
2.1
A6 – Color out / White in / Orange Door
2.1
A7 – Gray out / White in / Orange Door
2.1
A8 – Gray in and out / Orange Door
2.1
A9 – Change to Gray in and out
2.1
A10 – Change to Gray out / White in
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
A1 – Single Color in and out
2.1
2
2.1
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
4.0
Component Mounting Options: Panel
4.0
Component Mounting Options: Enclosure
3
Holes and Cutouts Panel
3
3.0
3
Holes and Cutouts Enclosure
3
3.0
5.2
Add Front and Rear Angles
5.2
Add End Angles
1
1
5
5
Add Legs or Channel Base
1
Delete / Replace Legs or Add Channel Base
5.1
1
5.0
6.1
Stainless Steel Hinge Pin
4
6.2
Gasket Shipped Loose
6
6.3
Add Dripshield and Drain Holes
6.3
Add Dripshield, but no Drain Holes
6.4
Delete Data Pockets and Pins
6.5
Change to L50N Handle(s)
6.5
Change to L50 Handle(s)
6.5
Change to L36 Handle(s)
4
4
4
4
4
4
4
4
6
6
6
6
6
6
4
4
4
4
4
4
4
4
Door Hinged on Opposite Side of Standard
6
Change to Lift–off Hinges
6.1
4
6.1
III. Dimensional Modifications / Finish Options / Holes and Cutouts / Component Mounting Options / Enclosure Mounting Options / Door Modifications
Modification Applies
A30–1
Catalog
Description
Bulletin
Number
NEMA 12 Double Door
Family Name
NEMA 12 Single Door Free–Stand – Single Access
A30–1DA
A27–3
NEMA 12 Single Door Free–Stand – Duale Access
A27–4
A30–2
NEMA 12 Three Door Enclosure
A30–2DA
NEMA 12 Four Door Enclosure
A27–5
NEMA 12 Double Door Free–Stand – Single Access
NEMA 12 Five Door Enclosure
A4L–1
NEMA 12 Double Door Free–Stand – Dual Access
NEMA 4 Free–Stand Single Door
A4L–2
Brochure Ref. No.
Notes: 1) See apporpriate section of the guide for a warning regarding this modification. 2) Cannot supply UL/CSA Label. 3) Drawing required for this option. 4) UL/CSA Type 1
label provided. 5) This modification cannot be done if the floor–stand legs have been omited. 6) See appropriate section of the guide for notes regarding type 3R labling.
7) Drawing required for non–default locations.
NEMA 4 Double Door
Size Modifications
1.0
87743149 Rev. A
4
E 2000 Hoffman Enclosures Inc.
I USTR
INDU
RIAL NEM
MA 12
2
NEMA 4
®
A12–L
8.3
Delete Panel Strut
8.4
Delete Body Rails
8.5
Delete Body Stiffeners
1
1
1
1
1
1
2
1
Omit Light Mounting Strut
1
8.2
1
Add Blind Tapped Pads
1
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
4,7
9.3
Add Fan Packages
9.2
Add Louver Plates and Filters
9.2
Add Louver Plates
9.1
Add Stamped Louvers and Filters to Doors
9.1
Add Stamped Louvers to Doors
4,7
3
Add Instrumentation Windows
3
3
3
3
3
3
3
3
3
3
3
3
3
3
Add Frame Style Windows
10.4
3
10.1
Add Light Kits
12.2
Add Electrical Interlocks
12.3
Add Grounding Straps
12.4
Add Door Stop Kits
12.5
Add Gland Plates
12.6
Add Keyboard Box
12.7
Add Shelves
4
4
4
4
4
4
4
4
4
4
12.1
MODIFICATION SERVICESTM Matrix: Industrial Enclosures
A30–1
A27–3
7.0
Delete Panel Studs
7.0
Delete Back Panel(s)
7.0
Delete Back Panel and Studs
7.0
Add Back Panel(s)
7.0
Change Panel Configurations
7.5
Add Rack Angles / Panel Configurations
7.5 / 7.7
Add Side Panels
7.7
Add Door Panels
7.7
Panels Painted Orange
7.7
Panels Shipped Ahead
IV. Panel Options / Structural Modifications / Environmental Options / Windwo Options / Disconnect Options / Accessories
Modification Applies
NEMA 12 Double Door
Catalog
Description
Bulletin
Number
NEMA 12 Single Door Free–Stand – Single Access
A30–1DA
Family Name
NEMA 12 Single Door Free–Stand – Dual Access
A27–4
A30–2
NEMA 12 Three Door Enclosure
A30–2DA
NEMA 12 Four Door Enclosure
A27–5
NEMA 12 Double Door Free–Stand – Single Access
NEMA 12 Five Door Enclosure
A4L–1
NEMA 12 Double Door Free–Stand – Dual Access
NEMA 4 Free–Stand Single Door
A4L–2
Brochure Ref. No.
Notes: 1) See apporpriate section of the guide for a warning regarding this modification. 2) Cannot supply UL/CSA Label. 3) Drawing required for this option. 4) UL/CSA Type 1
label provided. 5) This modification cannot be done if the floor–stand legs have been omited. 6) See appropriate section of the guide for notes regarding type 3R labling.
7) Drawing required for non–default locations.
NEMA 4 Double Door
8.1
87743149 Rev. A
5
E 2000 Hoffman Enclosures Inc.
I USTR
INDU
RIAL NEM
MA 12
2
NEMA 4
®
1.0
Dimensional Modifications
•
Dimensional size changes are allowed within the size limits defined below using one–inch
increments.
Application Note: When making a dimensional size change, unless specified otherwise in the
panel options, enclosures will be provided with the same panels and /or panel mounting provisions as the standard enclosures.
Dimensional Size Change Limits
Enclosure
“A” dimension (inch)
“B” dimension (inch)
“C” dimension (inch)
family
Min
Max
Min
Max
Min
Max
A–4L FS
48.06
96.06
25.06
37.06
18.06
36.06
A–4L 2 Dr.
48.06
86.06
42.06
72.06
10.06
36.06
A–12L
48.06
84.06
42.06
72.06
8.06
36.06
A–27 3 Dr.
48.12
96.12
112
112
14.12
36.12
A–27 4 Dr.
48.12
96.12
149.19
149.19
14.12
36.12
A–27 5 Dr.
48.12
96.12
187
187
14.12
36.12
A–30 FS
48.06
96.06
24.06
36.06
18.06
36.06
A–30 FSDA
48.06
96.06
24.06
36.06
18.06
48.06
A–30 FSD
48.06
96.06
42.06
72.06
18.06
36.06
A–30 FSDAD
48.06
96.06
42.06
72.06
18.06
48.06
A–21 “X”
60.12
81.12
43.75
77.75
12.12
36.12
A–21 “CPX”
60.12
81.12
42.5
76.5
12.12
36.12
A–28 1 Dr.
72.12
96.12
28.25
40.25
18.12
36.12
A–28 2 Dr.
72.12
96.12
54.50
78.50
18.12
36.12
A–28 3 Dr.
72.12
96.12
100.75
118.75
18.12
36.12
A–28 4 Dr.
72.12
96.12
144
158
18.12
36.12
A–28 5 Dr.
72.12
96.12
167.75
197.75
18.12
36.12
A–28 6 Dr.
72.12
96.12
200
236
18.12
36.12
A–34 1 Dr. Slave
72.12
96.12
39.75
39.75
18.12
36.12
A–34 1 Dr. Disc.
72.12
96.12
40.25
40.25
18.12
36.12
A–34 2 Dr. Slave
72.12
96.12
78
78
18.12
36.12
A–34 2 Dr. Disc.
72.12
96.12
78.50
78.50
18.12
36.12
Application Note: UL labels will be provided on all enclosures unless the enclosure integrity is
violated by any of the modifications.
E 2000 Hoffman Enclosures Inc.
6
87743149 Rev. A
®
2.0
Finish Options
•
Standard NEMA 12 enclosures are provided with a white powder finish inside and a gray
powder finish outside. Standard NEMA 4 enclosures are provided with a gray powder finish
inside and outside. No selections are required within this section if you desire the standard finish only.
•
Enclosures can be provided unfinished (gasket will be shipped loose) or with a polyester urethane powder finish. Powder finishes are available in a variety of colors and textures. You
may select a single color for both the exterior and interior, or choose a custom exterior color
with a white interior. The interior of enclosure doors can also be provided with a safety
orange powder coat, if required, in one of five colors: S006, S007, S076, S083 or S089. Unfinished enclosures can be cleaned and phosphatized upon request. Available colors and
textures are listed in the “Modification ServicesTM Finish Chart.”
2.1. Finish Selections
•
A1
= Single color / texture for both exterior and interior.
⇒ Select the color / texture you desire from the Modifications servicesTM
Finish Chart.
•
A2
= Custom color / texture on exterior, with white interior.
⇒ Select the exterior color / texture you desire from the Modifications
servicesTM Finish Chart.
•
A3
= Provide enclosure uncleaned and unpainted.
WARNING: Voids UL designation.
•
A4
= Provide enclosure cleaned and phosphatized, but unpainted.
WARNING: Voids UL designation.
•
A5
= Single color / texture for both exterior and interior, with orange on door
interior.
⇒ Select the color / texture you desire from the Modifications servicesTM
Finish Chart.
•
A6
= Custom color / texture exterior, with white interior and orange on door
interior.
⇒ Select the color / texture you desire for the exterior from the
Modifications servicesTM Finish Chart.
⇒ Select orange S006, S007, S076, S083, or S089.
•
A7 =
•
A8
Gray outside / white inside with orange on door interior.
= ANSI #61 gray inside and outside with orange on door interior.
⇒ Select orange S006, S007, S076, S083, or S089.
•
A9
•
A10 = Gray outside / white inside (standard NEMA 12 finish).
= ANSI #61 gray inside and outside (standard NEMA 4 finish).
E 2000 Hoffman Enclosures Inc.
7
87743149 Rev. A
®
3.0
Holes and Cutouts
•
Holes and cutouts can be provided in enclosures and/or panels.
•
The sizes, shapes, quantity, and locations of holes and cutouts are almost limitless. The most
commonly used sizes are listed in the Modified Servicest “Tooling Sizes & Shapes” brochure. See the drawings at http://www.hoffmanonline.com for usable areas on the enclosure
bodies and door. Should the location of a hole or cutout fall outside of the usable area, Hoffman experts are available to help you resolve any location issues. The minimum diameter
size for any hole or cutout is .136 inch. A drawing is required showing all hole sizes and
locations. The web page drawings can be used to fulfill this requirement.
Application Note: For the enclosure to maintain its UL integrity, all holes and cutouts must be
filled with a component or accessory with the same UL rating as the enclosure.
E 2000 Hoffman Enclosures Inc.
8
87743149 Rev. A
®
4.0
Component Mounting Options
•
Component mounting options can be provided in enclosures and/or panels.
•
Hoffman offers three different methods for component mounting: Tapped holes, welded or
press–in fasteners, and mounting strut. The available types and sizes are listed in the tables
below. This option requires a drawing. Please choose your mounting components from
the tables below and include the specifications on your drawing.
4.1. Tapped Holes
•
Specify the following tapped holes on your drawing, by size.
Unified Standard
Metric
ÍÍÍÍÍ ÍÍÍÍÍ
ÍÍÍÍÍ ÍÍÍÍÍ
4.2. Welded and Press–In Fasteners
#8–32
#10–32
M5.0 x .80
1/4 – 28
•
Specify the parts on your drawing, by the Hoffman part number.
•
A full listing of the available fasteners can be found in Hoffman’s Modifications ServicesTM Fastener Details bulletin.
•
Make sure your drawing clearly shows which surface the fastener is attached to.
WARNING: Press–in studs and nuts will violate the UL integrity of the enclosure if the fastener is over–torqued or bent in a manner that will break the
paint seal on the exterior of the enclosure.
Application Note: For dimensional information regarding these fasteners, please consult your
Hoffman sales representative.
E 2000 Hoffman Enclosures Inc.
9
87743149 Rev. A
®
4.3. Mounting Strut
•
Please specify the following strut on your drawing, by size.
Strut size (inch)
Industry equivalents
1.00 X 1.625
Globe Strut Catalog No. G–1012B–Line
Systems Catalog No. B–42
.406 x .812
Unistrut Catalog No. P–7000
Power Strut Catalog No. PS–700
Globe Strut Catalog No. G–3219
B–Line Systems Catalog No. B–72
Details of Mounting Strut
(Units: Inch)
E 2000 Hoffman Enclosures Inc.
10
87743149 Rev. A
®
5.0
Enclosure Mounting Options
•
The standard Hoffman A12–L and A4L–2 enclosures come with 12 inch high floor–stand
legs. The standard Hoffman A21–X and A21–CPX enclosures come with 15 inch high floor–
stand legs. As an option, floor–stand legs can be removed or changed in height. On enclosures that come standard without legs, floor–stand legs can be added. Hoffman offers floor–
stand legs in 4 inch, 6 inch, 12 inch and 15 inch heights with provisions for fastening the
enclosure to the floor. A four inch high channel base is also available. This base runs
around the entire perimeter of the enclosure with mitered corners and the flanges turned inward for an enclosed, clean appearance. Floor mounting angles are also available for enclosures with or without floor legs and bases.
Application Note: All three–, four–, five–, and six–door enclosures with legs added will have
one or more center legs in addition to the standard legs. Please consult your Hoffman sales representative for further information.
5.1. Floor–Stand Legs/Channels
floor–stand legs cannot be added to enclosures exceeding specific height as shown below
4 inch Leg
Maximum Enclosure
Height = 94.12 inch
6 inch Leg
Maximum Enclosure
Height = 92.12 inch
12 inch Leg
Maximum Enclosure
Height = 86.12 inch
15 inch Leg
Maximum Enclosure
Height = 83.12 inch
4 inch Channel
Maximum Enclosure
Height = 94.12 inch
Detail of Center Leg
4
E 2000 Hoffman Enclosures Inc.
11
87743149 Rev. A
®
5.2. Floor Mounting Angles
•
For additional floor mounting capabilities, Hoffman offers 2 x 2 x 6 floor mounting angles
welded to the front and back of the enclosure or continuous angles on the enclosure ends.
Detail of Floor Mounting Angle
3/16 Typ
2 Typ
Application Note: If the standard floor–stand legs are omitted from NEMA 4 double–door enclosures, the doors will not open if the enclosure is mounted directly to the floor. The enclosure
must be elevated approximately 1 inch off the floor to allow the doors to open.
E 2000 Hoffman Enclosures Inc.
12
87743149 Rev. A
®
6.0
Door Modifications
•
Several modifications are available for enclosure doors. These include: hinging, gaskets, drip
shields, data pockets, and door handles.
6.1. Hinging
•
On enclosures that come standard with continuous hinges, you can replace these hinges with
lift–off style hinges, or the continuous hinge can be provided with stainless steel hinge pins.
•
Enclosures that come standard with lift–off hinges can be converted to continuous hinges
with stainless steel pins if required.
•
If required, doors on the A30–1, A30–1DA, and the A4L–1 can be hinged on the opposite
side of standard.
Application Note: Hoffman’s lift–off hinges have stainless steel pins.
6.2. Gaskets
•
Gaskets can be shipped loose. Standard gasket material is black neoprene.
WARNING: Will void UL and CSA Type 12 or 4 rating.
6.3. Drip Shield
•
Should you require it, a drip shield is available installed on NEMA 12 enclosures (drip shields
are not allowed on NEMA 4 enclosures). Stainless steel hinge pins are included installed
with all drip shields. Hoffman will also provide drain holes in the enclosure bottom at your request .
WARNING: Drain holes void UL Type 12 designation.
Application Note:
•
Hoffman’s large disconnect enclosures now include a flanged trough collar around all door
openings. This flanged trough collar eliminates the need for a drip shield in many applications.
•
Enclosures with a drip shield, drain holes, and a paint finish will be provided with a UL type
3R label in place of the standard type 12 label unless further modifications void the UL integrity of the enclosure.
E 2000 Hoffman Enclosures Inc.
13
87743149 Rev. A
®
6.4. Data Pocket
•
A Hoffman standard data pocket comes installed in each enclosure. You may choose to replace these with metal data pockets that will accommodate a 3 inch three ring binder. You
may also omit the data pocket and pins.
Application Note: Should other selected modifications/options interfere with the data pockets,
the data pockets and data pocket mounting pins will be omitted from the enclosure.
6.5. Handles
•
Hoffman’s standard enclosures come with a variety of door handles installed.
•
•
•
Hoffman disconnect enclosures come with a screwdriver defeater in the master door
only. A screwdriver defeater can be added to all the slave door handles as well. In addition, the handles can be provided without the Hoffman logo (L50N).
Hoffman’s multi–door industrial enclosures come with the L–50 Hoffman logo handle.
These handles can be replaced with L–50N non–logo handles or the L–36 stainless steel
padlocking handle.
Hoffman’s standard single and double door NEMA 12 industrial enclosures come with a
keylocking handle. These handles can be replaced with the L–50 logo handle, L–50N
non–logo handle, or the L–36 stainless steel padlocking handle.
E 2000 Hoffman Enclosures Inc.
14
87743149 Rev. A
®
7.0
Panel Options
•
Back panels are either included or available for all Hoffman large enclosures. Single and
double–door enclosures that are provided with panels come with the panels strapped to the
outside back of the enclosure. Multi–door enclosures are provided with the panels installed.
All Hoffman standard panels are provided in a white glossy finish. No selections are required within this section if you desire the standard panel configuration only as defined in the latest Specifier’s Guide. If you wish to change the panel configuration,
shipment method, color, or require additional panels in the enclosure, you must complete this section. The following sections (7.1–7.6) define the back panel or panel and rack
angle options specific to the enclosure you require. Section 7.7 defines the options of door
panels, side panels, panel finish options, and panel shipment methods.
7.1. Back Panel Options for A12–L, A21–X, A21–CPX, and A4L–2
Enclosures
•
Panels for these enclosures do not come with the enclosure and are normally ordered separately. Unless otherwise specified, enclosures come with back panel mounting studs and
panel support angles only. If you require a panel to be shipped with the enclosure, or you
wish to delete the back panel mounting studs, you must complete this section, as follows:
•
•
•
If you do not require a back panel, you may omit the mounting studs and the panel support angles.
Should you require a back panel, they are available in a number of different configurations. You may select a full panel, which will cover the back of the enclosure, or you may
select up to two half panels. Half panels can be installed either left and right or top and
bottom and are sized as noted in the following table.
Panels are provided strapped to the enclosure back or pre–installed.
Full Panel
E 2000 Hoffman Enclosures Inc.
Half Panel – Left / Right
15
Half Panel – Top / Bottom
87743149 Rev. A
®
Description
Configuration
Panel size by family
A4L – 2
A12 – L
A21 – X
A21 – CPX
L
One half back panel
on the left side
A – 6.06 x
(B – 4.31)/2
A – 4.06 x
(B – 4.31)/2
A – 4.12 x
(B – 4.38)/2
A – 4.12 x
(B – 4.75)/2
R
One half back panel
on the right side
A – 6.06 x
(B – 4.31)/2
A – 4.06 x
(B – 4.31)/2
A – 4.12 x
(B – 4.38)/2
A – 4.12 x
(B – 4.75)/2
LR
Half back panel on
both left and right
(see above
formulas)
(see above
formulas)
(see above
formulas)
(see above
formulas)
T*
One half back panel
on the top
(A – 6.31)/2 x
B – 4.06
(A – 4.31)/2 x
B – 4.06
(A – 4.38)/2 x
B – 5.75
(A – 4.38)/2 x
B – 4.50
B*
One half back panel
on the bottom
(A – 6.31)/2 x
B – 4.06
(A – 4.31)/2 x
B – 4.06
(A – 4.38)/2 x
B – 5.75
(A – 4.38)/2 x
B – 4.50
TB*
Half back panel on
both top and bottom
(see above
formulas)
(see above
formulas)
(see above
formulas)
(see above
formulas)
Full
One full back panel
A – 6.06 x
B – 4.06
A – 4.06 x
B – 4.06
A – 4.12 x
B – 5.75
A – 4.12 x
B – 4.50
* When selecting one of these panel configurations, the body stiffeners on the inside rear wall will be
changed from vertical to horizontal positioning.
WARNING: When changing the panel configuration in disconnect enclosures, the
mounting location of the disconnect must be considered. Hoffman’s standard drilling
instructions may not be usable in some applications.
7.2. Back Panel Options for A28–1, A34–1S, and A34–1X Enclosures
•
A full panel comes with each enclosure. If you desire the standard full panel and the panel is to be shipped strapped to the enclosure back, no selections are required within
this section. If you do not require the back panel, wish to change the panel, or wish to have
the panel installed, you must complete this section, as follows:
•
•
•
As an alternative to the standard full panel, you may select up to two half panels. Panels
are sized as noted in the following table.
If you do not require a back panel, you may omit the panel only or the panel, the panel
mounting studs and the panel support angles.
Panels are provided strapped to the enclosure back or pre–installed.
Configuration
Description
Panel Size by family
A28 – 2
A34 – 1S
A34 – 1X
T*
One half back panel
on the top
(A – 12.38)/2 x (A – 12.38)/2 x (A – 12.38)/2 x
B – 6.50
B – 6.00
B – 6.50
B*
One half back panel
on the bottom
(A – 12.38)/2 x (A – 12.38)/2 x (A – 12.38)/2 x
B – 6.50
B – 6.00
B – 6.50
TB*
Half back panel on
both top and bottom
(see above
formulas)
(see above
formulas)
(see above
formulas)
Full
One full back panel
A – 12.12 x
B – 6.50
A – 12.12 x
B – 6.00
A – 12.12 x
B – 6.50
* On A34–IS and A34–1X enclosures, changing from a full panel to one or more half panels will
require additional body rails on the inside rear wall of the enclosure or movement of the existing rails.
E 2000 Hoffman Enclosures Inc.
16
87743149 Rev. A
®
WARNING: When changing the panel configuration in disconnect enclosures, the
mounting location of the disconnect must be considered. Hoffman’s standard drilling
instructions may not be usable in some applications.
7.3. Back Panel Options for A28–2, A34–2S, and A34–2X Enclosures
•
A full panel comes with each enclosure. If you desire the standard full panel and the panel is to be strapped to the enclosure back, no selections are required within this section. If you do not require the back panel, wish to change the panel, or wish to have the panel installed, you must complete this section, as follows:
•
•
•
As an alternative to the standard full panel you may select up to two half panels. Half
panels can be installed either left and right or top and bottom and are sized as noted in
the following table.
If you do not require a back panel, you may omit the panel only, or the panel, panel
mounting studs and the panel support angles.
Panels are provided strapped to the enclosure back or pre–installed.
Full Panel
Standard
Configuration
Half Panel Left / Right
Description
Half Panel Top / Bottom
Panel Size by family
A28 – 2
A34 – 2S
A34 – 2X
L
One half back panel
on the left side
A – 12.12 x
B/2 – 3.38
A – 12.12 x
(B – 6.25)/2
A – 12.12 x
(B – 6.75)/2
R
One half back panel
on the right side
A – 12.12 x
B/2 – 3.38
A – 12.12 x
(B – 6.25)/2
A – 12.12 x
(B – 6.75)/2
LR
Half back panel on
both left and right
(see above
formulas)
(see above
formulas)
(see above
formulas)
T*
One half back panel
on the top
A/2 – 6.18 x
B – 6.50
(A– 12.38)/2 x
B – 6.00
(A– 12.38)/2 x
B – 6.50
B*
One half back panel
on the bottom
A/2 – 6.18 x
B – 6.50
(A– 12.38)/2 x
B – 6.00
(A– 12.38)/2 x
B – 6.50
TB*
Half back panel on
both top and bottom
(see above
formulas)
(see above
formulas)
(see above
formulas)
Full
One full back panel
A – 12.12 x
B – 6.50
A – 12.12 x
B – 6.00
A – 12.12 x
B – 6.50
* On A34–2S and A34–2X enclosures, changing from a full panel to one or more half
panels will require additional body rails on the inside rear wall of the enclosure, or
movement of the existing rails. On A28–2 enclosures when changing to one of these
panel configurations, the body stiffeners on the inside rear wall will be changed from
vertical to horizontal positioning.
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WARNING: When changing the panel configuration in disconnect enclosures, the
mounting location of the disconnect must be considered. Hoffman’s standard drilling
instructions may not be usable in some applications.
7.4. Back Panel Options for A28–3, A28–4, A28–5, and A28–6
Enclosures
•
A set of panels comes installed in each enclosure. If you desire the standard full panels
and the panels are to be shipped installed in the enclosure, no selections are required
within this section. If you do not require the back panels or wish to change the panels, you
must complete this section, as follows:
• As an alternative to the standard full panels (configuration A), you may select any of the
panel configurations shown.
• If you do not require back panels, you may omit the panels only, or the panels, the panel
mounting studs and the panel support angles.
7.4.1. A28–3 Back Panel Options
Application Note: On the standard models, the centerpost between doors 1 and 2 is a solid
centerpost with a front–to–back brace running from behind the centerpost to the inside rear wall
of the enclosure for stiffening purposes. When configuration “C” or “D” is selected, this centerpost will be converted to a removable centerpost, and the front–to–back brace will be omitted.
Double Door Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration A (standard)
Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Double Door Panel
Panel configuration C
Inside rear view of enclosure
Single
Door
Panel
Three Door Panel
Panel configuration D
Inside rear view of enclosure
Panel configuration B
Inside rear view of enclosure
7.4.2. A28–4 Back Panel Options
Application Note: On the standard models, the centerpost between doors 2 and 3 is a solid
centerpost with a front–to–back brace running from behind the centerpost to the inside rear wall
of the enclosure for stiffening purposes. When configuration “E” or “F” is selected, this centerpost will be converted to a removable centerpost, and the front–to–back brace will be omitted.
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Double Door Panel
Double Door Panel
Panel configuration A (standard) – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration B – Inside rear view of enclosure
Single
Door
Panel
Double Door Panel
Single
Door
Panel
Panel configuration C – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Double Door Panel
Panel configuration D – Inside rear view of enclosure
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Single
Door
Panel
Three Door Panel
Panel configuration E – Inside rear view of enclosure
Single
Door
Panel
Three Door Panel
Panel configuration F – Inside rear view of enclosure
7.4.3. A28–5 Back Panel Options
Application Note: On the standard models, the center posts between doors 1 and 2, and doors
3 and 4 are solid centerposts with a front–to–back brace running from behind the centerpost to
the inside rear wall of the enclosure for stiffening purposes. When selecting configuration “B”,
“C”, “D”, “F” or “G”, these centerposts will be converted to removable centerposts as noted in the
table below. When converting to a removable centerpost from a solid centerpost, the front–to–
back brace must be omitted.
Panel
configuration
Center post between
doors 1 and 2
Center post between
doors 3 and 4
A or E
Solid
Solid
B or C
Removable
Removable
D or G
Removable
Solid
F
Solid
Removable
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Double Door Panel
Double Door Panel
Single
Door
Panel
Panel configuration A (standard) – Inside rear view enclosure
Single
Door
Panel
Double Door Panel
Double Door Panel
Panel configuration B – Inside rear view of enclosure
Three Door Panel
Two Door Panel
Panel configuration C – Inside rear view of enclosure
Three Door Panel
Two Door Panel
Panel configuration D – Inside rear view of enclosure
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Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration E – Inside rear view of enclosure
Single
Door
Panel
Three Door Panel
Single
Door
Panel
Panel configuration F – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Three Door Panel
Panel configuration G – Inside rear view of enclosure
7.4.4. A28–6 Back Panel Options
Application Note: On the standard models, the centerposts between doors 2 and 3, and doors
4 and 5 are solid centerposts with a front–to–back brace running from behind the centerpost to
the inside rear wall of the enclosure for stiffening purposes. When selecting configuration “C”,
“D” or “E”, these centerposts will be converted to removable centerposts and the front–to–back
braces will be omitted.
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Double Door Panel
Double Door Panel
Double Door Panel
Panel configuration A (standard) – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration B – Inside rear view of enclosure
Three Door Panel
Three Door Panel
Panel configuration C – Inside rear view of enclosure
Three Door Panel
Double Door Panel
Single
Door
Panel
Panel configuration D – Inside rear view of enclosure
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Single
Door
Panel
Three Door Panel
Double Door Panel
Panel configuration E – Inside rear view of enclosure
7.5. Panel and Rack Angle Options for A30–1, A30–1DA, A30–2,
A30–2DA and A4L–1 Enclosures
•
Panels and rack mounting angles are not supplied with the enclosure. Unless otherwise specified, enclosures come with mounting provisions only, for mounting of panels and angles.
For custom size enclosures, Hoffman offers a variety of predefined configurations as shown
below. All panels and angles are full height. Side mounted panels are sized in width to provide the largest panel mounting area available in the enclosure. Door mounted panels are
also available but are not included in the predefined configurations (see section 7.7 for further
information on door panels). When ordering a predefined configuration, rack angles will be
provided installed as detailed below. Panels may be strapped to the enclosure back unless
you request that they be pre–shipped or pre–installed. Rack mounting angles cannot be pre–
shipped. All panels come with a glossy white or safety orange, polyester urethane powder
finish. Rack angles come in white only.
Application Note: For standard size enclosures or enclosures with standard “A” and “B” dimensions, Hoffman offers a full line of accessories for panel mounting or rack mounting. These accessories are available in stock for immediate shipment. The accessories defined within this section of the brochure are meant for use in custom size enclosures only, and the design or
fabrication of these items may vary slightly from those defined in the Specifier’s Guide. If the
following offering does not meet the needs of your specific application, custom accessories may
be available through your Hoffman sales representative.
7.5.1. Panels
•
Panels are available in full height only and are adjustable front to back in the enclosure on
the mounting strut. The sizes of these panels are determined as follows:
Enclosure family
Panel height (inch)
Panel width (inch)
A30–1 and A30–1DA
A – 12.06
B – 4.06
A30–2 and A30–2DA (Full Width Panels)
A – 12.06
B – 4.06
A30–2 and A30–2DA (Half Width Panels)
A – 12.06
(B – 8.06)/2
A4L–1
A – 12.06
B – 5.06
7.5.2. Side Panels
•
Side panels will be provided on both the left and the right side of the enclosure and are full
height panels. Panel size is calculated as follows:
Enclosure family
Panel height (inch)
Panel width (inch)
A30–1, A30–2DA and A4l–1
A – 12.06
C – 5.06
A30–1DA and A30–2DA
A – 12.06
C/2 – 5.03
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7.5.3. Rack Mounting Angles
•
Rack mounting angles are the “RA” style for accommodating 19 inch and 24 inch rack equipment and are available in full lengths only. Angles are allowed only in 24 inch and 30 inch
wide A30–1 and A30–1DA enclosures, 25 inch and 31 inch wide A4L–1 enclosures and 48
inch and 60 inch wide A30–2 and A30–2DA enclosures. All angles are provided with
through–holes only to accommodate clip nuts (shown in the Specifier’s Guide). Angles are
painted white and will not be zinc plated. The length of the angles is determined by the maximum number of rack units that will fit within the door opening of the enclosure size you select. To determine the length of angles, use the following two–step calculation:
1.
Determine the number of rack units the door opening will allow, as follows:
(A – 10.75 inch) / 1.75 inch = # of rack units*
*Round this number down to the nearest whole number
2.
Determine the angle length, as follows:
Angle Length = # of rack units x 1.75 inch
7.5.3.1 A30–1 and A4L–1 Predefined Configurations
Configuration A
Configuration B
Configuration C
(Available for 24.06 inch and
30.06 inch wide A30–1
enclosures and 25.06 inch and
31.06 inch wide A4L–1
enclosures only)
(2) Sets of “RA” style rack angles
(1) Full Panel
(1) Full Panel
(2) Side Mounted Panels
7.5.3.2 A30–1DA Predefined Configurations
Configuration A
Configuration B
Configuration C
(Available for 24.06 inch and
30.06 inch enclosures only)
(2) Sets of “RA” style rack angles
(1) Full Panel
(2) Full Panel
(4) Side Mounted Panels
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7.5.3.3 A30–2 Predefined Configurations
Configuration A
Configuration B
(Available for 48.06 inch and
60.06 inch enclosures only)
(4) Sets of “RA” style rack angles
(Available for 48.06 inch and
60.06 inch enclosures only)
(1) Single Door Panel
(2) Sets of “RA” style rack angles
Configuration C
Configuration D
(1) Full Panel
(1) Full Panel
(2) Side Mounted Panels
7.5.3.4 A30–2DA Predefined Configurations
Configuration A
Configuration B
(Available for 48.06 inch and
60.06 inch enclosures only)
(4) Sets of “RA” style rack angles
(Available for 48.06 inch and
60.06 inch enclosures only)
(2) Single Door Panels
(2) Sets of “RA” style rack angles
Configuration C
Configuration D
(2) Full Panel
(2) Full Panel
(4) Side Mounted Panels
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7.6. Back Panel Options for A27–3, A27–4, and A27–5 Enclosures
•
A set of panels comes with each enclosure. No selections are required within this section
if you desire the standard full panels only and the panels are to be shipped installed
in the enclosure. If you do not require the back panels or wish to change the panels, you
must complete this section, as follows:
•
•
As an alternative to the standard full panels (Configuration A), you may select any of the
panel configurations shown below.
If you do not require a back panel, you may omit the panels only, or omit the panels, the
panel mounting studs, and the panel support angles.
7.6.1. A27–3 Back Panel Options
Single
Door
Panel
Double Door Panel
Panel configuration A (Standard) – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration B – Inside rear view of enclosure
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7.6.2. A27–4 Back Panel Options
Double Door Panel
Double Door Panel
Panel configuration A (standard) – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration B – Inside rear view of enclosure
Double Door Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration C – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Double Door Panel
Panel configuration D – Inside rear view of enclosure
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7.6.3. A27–5 Back Panel Options
Single
Door
Panel
Double Door Panel
Double Door Panel
Panel configuration A (standard) – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration B – Inside rear view of enclosure
Single
Door
Panel
Double Door Panel
Single
Door
Panel
Single
Door
Panel
Panel configuration C – Inside rear view of enclosure
Single
Door
Panel
Single
Door
Panel
Single
Door
Panel
Double Door Panel
Panel configuration D – Inside rear view of enclosure
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7.7. Panel Options – Door Panels, Side Panels, Finish, and
Shipment
7.7.1. Door Mounted Panels – All Enclosures
•
Door mounted panels are available for all doors and come as a full panel which covers the
entire door or as half panels which can be mounted to cover the top and/or the bottom of
each door.
Application Note: A door will only support approximately 250 pounds. This total weight must
include the panel and all components to be mounted on the panel. To calculate the panel weight,
use the following calculation: Panel size (in square feet) x 5.50 pounds
For specific information regarding door panel sizes, please consult your Hoffman
sales representative.
7.7.2. Side Panels – Not Including A30 and A4L–1 Enclosures
•
Side panels are available for both the left and the right side of the enclosure. On disconnect
enclosures with the disconnect in the right hand flange, the left side panels come as full panels only, and right side panels come as half panels only. On all other enclosures, both the left
and right side panels are full sized.
7.7.3. Panels Safety Orange – All Enclosures
•
Five color choices of a safety orange finish are offered in addition to Hoffman’s standard
white finish for all panels: International Orange (S006), Pure Orange (S007), OSHA Safety
Orange (S076), Chrysler Safety Orange (S083), and Ingersoll Safety Orange (S089). Selecting this option will mean that all panels required (back, side, and door) will be finished in the
safety orange color selected.
7.7.4. Panels Shipped Ahead – All Enclosures
•
All panels specified (back, sides, and doors) will be shipped together. Specify the required
ship date for enclosure and panels at time of order.
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8.0
Structural Modifications
•
A variety of structural modification options are available for the enclosure body. Lifting eyes
can be threaded into blind tapped pads; the light mounting channel, the panel mounting strut,
body rails or body stiffeners can be omitted from the enclosure; and a false bottom can be
provided in some enclosures.
8.1. Lifting Eyes – All Enclosures
•
If an oil tight seal is required when the lifting eyes are removed from the enclosure, Hoffman’s
standard lifting eyes can be threaded into blind tapped pads (sealed wells) on the enclosure
top. These tapped pads are continuously welded in place to provide a dust tight and oil tight
seal.
8.2. Light Mounting Channel – All Enclosures
•
A channel is provided on the inside top of the enclosure for mounting of light kits. If necessary, this light mounting channel can be omitted from the enclosure.
8.3. Panel Mounting Strut – A30 and A4L–1 Enclosures
•
On Hoffman A30 and A4L–1 enclosures, panel mounting strut is provided running front to
back in the enclosure. This mounting strut can be omitted from the enclosure if required.
However, if this strut is omitted, Hoffman accessories such as panels and rack angles cannot
be used in the enclosure.
WARNING: Hoffman cannot guarantee the flatness, strength or rigidity of the enclosure sides if the standard struts are omitted. Depending on the enclosure size, the UL
integrity of the enclosure may be violated by this modification.
8.4. Body Rails – All A34 and Multi–door Enclosures
•
The inside rear of the A34 and multi–door enclosures are provided with (3) body rails. If
these body rails interfere with your modification requirements, the rails can be omitted from
the enclosure. However; if you choose to omit the body rails, the interior panel, panel mounting studs and panel support angles must also be omitted from the enclosure.
WARNING: Hoffman cannot guarantee the flatness, strength or rigidity of an
enclosure back if the standard stiffeners are omitted.
8.5. Body Stiffeners – All Applicable Double Door Enclosures
•
Back body stiffeners are provided on most double door enclosures. These stiffeners can be
omitted from the enclosure if required.
WARNING: Hoffman cannot guarantee the flatness, strength or rigidity of an
enclosure back if the standard stiffeners are omitted. The UL integrity of the
enclosure may be violated if the stiffeners are omitted and no back panel is
installed in the enclosure. Either stiffeners, a rear mounted panel, or both are
required to meet UL requirements.
8.6. False Bottom – A28 and A34 Enclosures Only
•
A28 and A34 enclosures can be provided with a false bottom (or cable cover) located approximately 5.5 inches off the enclosure bottom for wire management purposes.
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9.0
Environmental Options
•
Hoffman’s Modification Servicest program offers several ways to ventilate your enclosure.
Louvers are available in both a stamped–in version and also as louver inserts. Stamped–in
louvers are only available on the enclosure doors in predefined configurations and at default
locations. Louver inserts can be installed on the enclosure body or doors at predefined default locations or at customer specified locations, if accompanied by a drawing(s). Filters are
available for any of the louver configurations listed below.
•
In addition to louvers, Hoffman offers standard fan packages and grille kits. Default locations
are provided for all fan packages and grille kits, however, customer specified locations are
allowed if accompanied by a drawing(s). The fan packages and grille kits will be provided
(shipped loose) inside the enclosure.
WARNING: Any of the following modifications will void the UL type 12 designation
from the enclosure.
Application Note:
•
Environmental options are not available for NEMA 4 enclosures.
•
Some restrictions may apply to the installation of some of the larger ventilation kits due to
enclosure widths and depths. Please consult your Hoffman sales representative for further
information.
9.1. Stamped in Louvers
Considerations
S Must use predefined configurations
S Available in the doors only
S Default locations only
S Filters available
S Some configurations require a minimum enclosure width
Available configurations
Stamped Louver
Louver
Length
(inch)
Louvers per
Column
Columns
no filter
with filter
SL44
SL44F
4
4
1
SLD44
SLD44F
4
4
2
SL66
SL66F
6
6
1
SLD66
SLD66F
6
6
2
SL88
SL88F
8
8
1
SLD88
SLD88F
8
8
2
SL812
SL812F
8
12
1
SLD812
SLD812F
8
12
2
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9.2. Louver Inserts
Considerations
S Default locations available
S Drawing(s) required for customer specified locations
S Available in doors or body
S Filters available
Available Standard Louver Inserts
Louver Insert
Louver Length
(inch)
Number of
Louvers
Area Required
(height x width)
(inch)
no filter
with / filter
KL33
KL33F
3
3
4.44 X 4.50
KL34
KL34F
3
4
5.31 X 4.50
KL43
KL43F
4
3
5.06 X 5.50
KL44
KL44F
4
4
6.19 X 5.50
KL64
KL64F
6
4
6.19 X 7.50
KL66
KL66F
6
6
7.94 X 7.50
KL84
KL84F
8
4
5.88 X 9.50
KL86
KL86F
8
6
8.25 X 9.50
KL88
KL88F
8
8
10.62 X 9.50
KL812
KL812F
8
12
15.38 X 9.50
9.3. Fan Packages and Grille Kits
Considerations
S Default locations available
S Available in doors or bodies
S Drawing(s) required for customer specified locations
S Shipped loose with the enclosure
Available fan packages and grille kits
Fan packages
Area required
(height x width)
(inch)
Grille kits
115 Volt
230 Volt
A–PA4AXFN
A–PA4AXFN2
6.11 x 7.38
A–EXGR4
A–PA6AXFN
A–PA6AXFN2
7.61 x 8.88
A–EXGR6
A–PA10AXFN
A–PA10AXFN2
11.62 x 13
A–EXGR10
A–DB275
___
5.75 x 19
A–EXGR275
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9.4. Environmental Default Locations (Example Only)
•
Default locations will vary from enclosure to enclosure. The following is an example of the
default locations available for the A28 three–door enclosure. For available default locations specific to your enclosure, please consult your Hoffman sales representative.
RST
LST
LSB
D3T
D2T
D1T
D3B
D2B
D1B
BD3
RSB
BD2
BD1
Abbreviations
RST – Right Side Top
RSB – Right Side Bottom
D1T – Door #1Top
D1B – Door #1 Bottom
D2T – Door #2Top
D2B – Door #2 Bottom
D3T – Door #3Top
D3B – Door #3 Bottom
BD1 – Below Door #1
BD2 – Below Door #2
BD3 – Below Door #3
LST – Left Side Top
LSB – Left Side Bottom
(centered front to back and located as high as possible) See note below.
(centered front to back and located as low as possible
(centered side to side and located as high as possible
(centered side to side and located as low as possible)
(centered side to side and located as high as possible)
(centered side to side and located as low as possible)
(centered side to side and located as high as possible
(centered side to side and located as low as possible)
(centered in the area below the left door) See note below
(centered in the area below the left door) See note below
(centered in the area below the right door) See note below
(centered front to back and located as high as possible
(centered front to back and located as low as possible)
Application Note: Only the A–DB275 or A–EXGR275 are available for use at default locations
BD1, BD2, and BD3.
WARNING: Extreme caution must be used when mounting any type of cooling
package at default location RST. If a disconnect is installed in the enclosure,
the cooling package may interfere with its proper operation.
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10.0 Window Options
•
Windows are available installed in the doors. The Hoffman traditional frame style window is
available in addition to instrumentation (automotive) style windows.
Application Note: Limitations apply to the installation of some of the larger windows. Please
consult your Hoffman Sales Representative for further information.
10.1. Available Frame Style Windows
•
Frame style windows will be painted to match the enclosure exterior. To order a window
installed, please provide the window kit number, the window pane material, the orientation of
the window, and the locating dimensions. If multiple windows are required in the door, drawings are required.
Viewing area
dimensions (D X E)
(inch)
Window kit number
13 X 8
K138NF
17 X 11
K1711NF
23 X 15
K2315NF
29 X 19
K2919NF
35 X 23
K3523NF
10.2. Window Orientation for Frame Style Windows
D
D
E
E
Horizontal
Installation
Vertical
Installation
10.3. Window Pane Materials
Material code
Pane material
A
Clear acrylic
P
Clear Polycarbonate
S
Clear safety glass (voids all UL labeling)
R
Clear Polycarbonate w/abrasion resistant coating
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10.4. Instrumentation Style Windows
•
Instrumentation windows can be provided in any size from 4 inch x 4 inch up to a full window
door. For the maximum allowable size in the specific enclosure you require, consult
your Hoffman Sales Representative. To order a window installed, please provide the window height and width dimensions, the window pane material, and the locating dimensions. If
multiple windows are required in the door, drawings are required.
Application Notes:
•
Instrumentation windows are not available for NEMA 4 enclosures.
•
Enclosures with instrumentation windows over the size of 48 inch x 24 inch cannot be UL
labeled.
•
Expansion and contraction due to extreme temperature changes during shipment or use may
result in larger instrumentation windows becoming loose or dislodged from the door.
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11.0 Disconnect Options
•
Changes can be made to the disconnect provisions in all of the disconnect enclosures. The
universal disconnect cutout can be replaced with a preferred cutout or the disconnect provisions can be omitted altogether. If the disconnect provisions are omitted, the door–to–door
interlocking can be omitted as well. A wide assortment of operator adapter kits is available to
be shipped with the enclosure if desired.
Application Note:
•
Interlocking on the A34 enclosures cannot be omitted.
•
Disconnect enclosures greater than 18.12 inch deep and less than or equal to 24.12 inch
deep will be provided with a 6 inch high platform for mounting of rod operated disconnect operators. For enclosures over 24.12 inch deep, the use of cable operated systems is recommended.
11.1. Disconnect Provisions and Door–to–Door Interlocking
Three options are available:
S Omit the disconnect provisions from the enclosure.
S
S
Replace the standard universal cutout with a preferred cutout for use with specific disconnect
operating handles as listed in the following table.
Omit the disconnect provisions and door–to–door interlocking (except on the A34 modular
enclosures).
Preferred Cutout
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Disconnect operators compatible for use in the preferred cutout
Disconnect
manufacturer
Type of operator
Hoffman adapter kit
required
Allen Bradley
1494V Disconnect switches 1494V Circuit breaker mechanisms
KPCABVA
ABB Controls
Disconnect switches
Operators for circuit breakers
KPCCHVA
Cutler Hammer
C361 Disconnect switches
C371 Circuit breaker operators
C371 Flex shaft operators
KPCCHVA
General Electric
STDA Disconnect switches
STDA Circuit breaker operators
Spectra flex operators
KPCGETDA
I–T–E
Max–flex for disconnect switches
Max–flex for circuit breakers KPCITE
Square D
9422 Disconnect switches 9422 Operators for circuit breakers
9422 Cable mechanisms for disconnects
9422 Cable mechanisms for circuit breakers
KPCSDA
1494V 400 amp. and 600 amp. switches require special modifications not offered under the Modification Servicest program.
Max–Flex operators for 800 amp. and larger require special modifications not offered under the Modification Servicest
program.
9422 400 amp. switches require a custom enclosure.
11.2. Operator Adapter Kits
•
For your convenience, Hoffman can provide the enclosure with one of the standard operator
adapter kits listed in the following table. The faceplates provided with the universal kits will
be painted to match the enclosure exterior. All adapter kits are provided loose inside the enclosure.
Hoffman operator adapter kits
Manufacturer/operator
Adapter kit for universal cutout
(finished to match)
Adapter kit for preferred
cutout
Allen–Bradley 1494F and 1494D
K21ABA
Not available
Allen–Bradley 1494V
K21ABVA
KPCABVA
ABB Controls
K21CHVA
KPCCHVA
Cutler Hammer
C361
C371
C371 Flex shaft
K21CHVA
KPCCHVA
Cutler Hammer Type SM
K21WHA
Not available
General Electric STDA
K21GETDA
KPCGETDA
I–T–E Siemens Max–Flex
K21ITE
KPCITE
Square D 9422
K21SDA
KPCSDA
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12.0 Accessories
•
A wide variety of Hoffman standard and custom accessories are available shipped with the
enclosure. Many of these accessories are provided at default locations and some can be
located at customer specified locations. Please read the descriptions of each carefully and
provide all the location information requested.
12.1. Fluorescent Light Kits
•
Fluorescent light kits can be provided with the enclosure. Light kits are available in 115 or
230 volt and either 50 or 60 Hz. Frequencies. Light kits are shipped loose inside the enclosure for mounting on the light mounting channel provided on the inside top of the enclosure.
All light kits shall be provided with a manual switch. A door activated switch is provided loose
with each light kit for applications requiring door activated lighting. These switches will not be
wired or mounted at the factory. The length and quantity of light kits provided with each enclosure will vary with the type and size of the enclosure.
For light kit information specific to your enclosure, please consult your Hoffman sales
representative.
12.2. Electrical Interlocks
•
Electrical interlocks are available in three voltages: 115 volt, 230 volt, and 460 volt. An interlock shall be installed on each door (or set of double overlapping doors).
12.3. Grounding Straps
•
Grounding straps can be installed on all doors in the lower hinged corner. Grounding straps
come in 4 gauge or 8 gauge wire.
Application Note: Hoffman ground straps are not a UL recognized component.
12.4. Door Stop Kit
•
Door stop kits can be provided on the bottom of all doors, and/or the top of all doors except
the master (far right–hand ) door of the A28–3, A28–4, A28–5, A28–6, A34–1X, and A34–2X
enclosures. A door stop kit cannot be installed on the top of these doors due to the interlocking in the upper left hand corner of the door. When ordering an enclosure with door stop kits
installed, you will receive a door stop kit installed on all doors.
12.5. Gland Plates
•
Gland plates can be provided in both the enclosure top and bottom. Gland plates will be located at default locations only and are available in three sizes as shown below. All gland
plates and mounting hardware are provided loose with the enclosure.
For default location information specific to your enclosure, please consult your Hoffman sales representative.
WARNING: This modification will void the UL type 4 or 12 designation.
Application Note: All large enclosures have a light mounting channel (L.M.C.) on the inside top
of the enclosure. Removal of the L.M.C. may allow for installation of a larger gland plate(s). If the
gland plate you select requires the removal of the L.M.C., the L.M.C. will be omitted by default.
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Available sizes
Gland plate size
(inch)
Enclosure cutout
dimensions
(inch)
Gland plate dimensions
(inch)
4
4 X 16
6.5 X 18.5
10
10 X 16
12.5 X 18.5
14
14 X 16
16.5 X 18.5
12.5.1. Default Configurations (Example Only)
•
Default locations will vary from enclosure to enclosure. The following is an example of the
default locations available for the A28 three–door enclosure.
For available default locations specific to your enclosure, please consult your Hoffman sales representative.
24”
CUTOUT
24”
CUTOUT
2” Typ
12.6. Keyboard Box
•
Keyboard boxes can be installed on the exterior of the doors. The keyboards can be located
at default locations or non–default (customer specific) locations. Customer drawings will be
required for non–default locations. Keyboard boxes will be painted to match the exterior of
the door and will be shipped loose inside the enclosure. Holes will be provided in the door
along with hardware and gasketing for field installation.
For available default locations specific to your enclosure, please consult your Hoffman sales representative.
Application Note: Some restrictions may apply to the installation of keyboard kits on some enclosures due to the enclosure width. Please consult your Hoffman sales representative for further information.
12.7. Folding Shelves
•
Folding shelves can be provided installed on the inside or outside of the doors and are available in three sizes as shown below. The shelves can be located at default locations or non–
default (customer specific) locations. Customer drawings will be required for non–default
locations. Shelves will be painted to match the color of the enclosure mounting surface.
For available default locations specific to your enclosure, please consult your Hoffman sales representative.
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Application Note:
•
Some restrictions may apply to the installation of some of the larger shelves due to enclosure
widths. Please consult your Hoffman sales representative for further information.
•
Folding shelves are of a different design than those available in the Specifier’s Guide. These
shelves measure approximately 1.63 inch deep when in the folded position.
Available sizes
Shelf Size
(inch)
Shelf dimensions
(width x depth)
(inch)
12
12 x 18
18
18 x 18
24
24 x 24
12.8. A34 Modular Accessories
•
Hoffman offers four accessories for the A34 modular enclosure line. Formed end plates
(EPT), flat end plates (FEP), barrier plates (BAP), and hardware/gasket kits (FGK). These
accessories can be provided in special sizes to match any special size enclosure you may
require, and can be provided with several of the same modifications as the enclosures.
These modifications include finish options, holes, cutout and component mounting options,
plus environmental options and floor mounting options. Please consult your Hoffman Sales
Representative for further information.
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Hoffman
900 Ehlen Drive
Anoka, MN 55303–7504
(763) 421–2240 Fax (763) 422–2178
http://www.hoffmanonline.com
SCHROFF, Inc.
170 Commerce Drive
Warwick, Rhode Island 02886
http://www.schroffus.com
Canada
HOFFMAN
111 Grangeway Avenue
Suite 504
Scarborough, Ontario M1H 3E9
(416) 289–2770 Fax (416) 289–2883
1–800–668–2500 (Canada only)
Germany
SCHROFF GmbH
Langenalber Straße 96–100
D–75334 Straubenhardt
Postfach 3, D–75332 Straubenhardt
(0 70 82) 794–0 Fax (0 70 82) 794200
http://www.schroffge.com
United Kingdom
SCHROFF UK LTD
Maylands Avenue
Hemel Hempstead
Hertfordshire HP2 7DE
(0 14 42) 24 04 71 Fax (0 14 42) 21 35 08
Sweden
SCHROFF
Scandinavia AB
Box 2003 • Flygfältsgatan 11
12821 Skarpnäck
(9) 2 22 68 00 Fax (9) 2 22 38 86
France
SCHROFF SA
Z.I. • 4, rue du Marais
67660 Betschdorf
88 90 64 90 Fax 88 54 51 22
Italy
SCHROFF S.R.L.
Viale Milano, 119
21013 Gallarate (Varese)
(03 31) 79 40 03 Fax (03 31) 79 34 50
Singapore
HOFFMAN–SCHROFF PTE LTD
#01 68/71 German Centre
25 International Business Park
Singapore 60 99 16
(65) 5 62–78 90 Fax (65) 5 62–78 99
Japan
SCHROFF K.K.
Nisso No. 13 Bldg. 4F
Shinyokohama 2–5–1
Kouhoku–Ku, Yokohama 222
81 (0 45) 4 76–02 81 Fax 81 (0 45) 4 76–02 89
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