Blackburn
Grounding Systems
®
Blackburn Grounding Systems
®
Blackburn® Grounding compression and mechanical connectors and
accessories represent one of the most comprehensive product lines in the
industry for the creation of a safe, code-compliant and reliable grounding.
• D
irect Burial — Blackburn® Grounding compression products are compliant with
IEEE 837, UL® 467, CSA 22.2 and applicable sections of the National Electrical
Code® (NEC®). They can be used in direct-burial or concrete-encased applications.
•
Broad Line and No Special Tooling — Blackburn® Grounding mechanical
connectors provide an extensive array of options for grid points, and with no training
or special tools required for installation, they are an extraordinarily flexible solution.
At T&B, we’re committed to:
•Convenience of single-order, singleshipment to your site for thousands
of stocking items
•Expert local point of contact for clear,
consistent information regarding
training, codes and standards
•Quality brands that have proven
themselves over time
•Inventive design and manufacture
of problem-solving products
•Offering a best-of-class warranty
and returns policy
•Uniform carton labeling with
additional bar-coding for convenient
inventory management
•Nationwide network of stocking
electrical distributors
•Outstanding customer service
capability
•Supplying you with the right products,
convenient packaging, on-time
delivery and competitive pricing
We deliver the solutions that make your job easier and offer the power to bring
it all together in one package. Call us today and let us help you profit from sourcing
your electrical products from the leader, Thomas & Betts.
Customer Service
Contents
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Immediate, Knowledgeable
Assistance
Every Thomas & Betts Customer Service
Representative is right where the action
is — surrounded by all the support and
information they need to answer your
questions and fill your orders faster than ever. Your calls and faxes are
automatically routed to Customer Service Specialists who personally serve
your account and can answer questions about products, order status, price
and availability, and other service-related inquiries.
Phone: 1-800-816-7809
Fax: 1-800-816-7810
Email: generalcustomerserviceteam@tnb.com
T&B Access
®
tnbaccess.tnb.com
T&B Access® is a global sales tool for our distributor
partners, offering:
•
•
•
•
•
•
•
•
Quote Requests
Stock Checks
Pricing Inquiries
Cross Reference
Order Entry
Order Resolution
Shipping Status
Document Look-Up
•Automatic Order
Receiving
• Item History Search
•Multiple-Location
User Search
•ContextSensitive Help
•Shipping
Confirmations
• Tracking Data
•Expediting
• Returns Processing
• Quality Issues
•Customer Report
Cards
•Web Catalog
Look-Up
All of these tools and more are available online 24 hours a day – 7 days a week,
without having to make a single phone call. Multi-lingual options are available
in English, French and Spanish. T&B Access® now serves over 10,000 satisfied
customer users at over 3,500 locations every month.
T&B Services.............................................................. 2–3
Overview.................................................................... 4–5
EZGround™ Compression Grounding Connectors....... 6–19
Cast Copper Connectors for Grounding......................... 20
Raised Floor Grounding Systems............................. 21–22
Ground Rod Accessories......................................... 22–23
Ground Plates......................................................... 23–24
Ground Rod Clamps................................................ 25–27
Cable Tray Grounding Connector................................... 27
Structure Grounding............................................... 28–30
Ground Clamps....................................................... 31–39
Catalog Number Index.................................................. 40
T&B Services
Technical Services
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Over 170 Years of Industry Experience
Meeting and exceeding our customers’ expectations is a fundamental goal of
Thomas & Betts. Call our Technical Services Department and talk LIVE to an expert
who’ll answer questions and concerns regarding all aspects of our products and
services. Our experienced and knowledgeable staff is second to none in the industry!
Tool Services
1-800-284-TOOL
Quality You Can Trust
Trust T&B’s dedicated Tool Services Department to answer all questions regarding
tool applications, repair, warranties, sales/lease/rental and technical information.
Ask about our specialized services, including customer/sales training, demos
and calibration/certification of tools.
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U.S. contractors and specifiers have made our web catalog their number one stop.
Users can search for technical information by catalog number, UPC code, competitor
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are searching for, they can then use our Where To Buy function to locate a T&B local
distributor and/or other support services.
2
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T&B Services
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Over 4,000 2D and 3D CAD Models Available FREE!
The T&B CAD Library is an on-line source of 2D and 3D CAD models, available
FREE to customers who register. Users can download these files to their desktops
for import into their working drawings. Drawings are offered in 90 of the most popular
native file formats. This is a valuable tool for CAD designers, OEMs and engineering
firms, as it will allow them to quickly locate and download T&B drawings into their
projects. Over 4,000 drawings of T&B® Fittings, PMA® Cable Protection, Kindorf®,
Red•Dot® and Superstrut® products and Steel City® and Carlon® Floor Boxes are
currently available, and we’re continually adding more products to the library.
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Autodesk and Revit are registered trademarks of Autodesk, Inc.
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3
Connectors & Grounding — Blackburn® Grounding Systems
Overview
Blackburn® EZGround™ Compression Connectors represent a low cost, code-approved alternative to
welded ground grid connections. EZGround™ Connectors can be safely installed in half the time, with fewer
components, and in all weather conditions. The range-taking capability of each EZGround™ series connector
translates to fewer parts needed to complete the ground grid. EZGround™ Compression Connectors are
installed using the “T&B Method,” which produces an easily inspectable die embossment on the connector
indicating that the proper tool has been used and successful crimp has been made. EZGround™ carries
the “T&B Method” mark of approval and represents the connection of choice for faster, simpler and safer
ground grid system installations.
Meets all applicable specifications
Thomas & Betts grid and ground rod connectors satisfy the requirements of NEC® Article 250 for
connecting to the Grounding Electrode System. They also meet the requirements of UL® Std. 467, UL®
Std. 486, CSA Std. C22.2 No. 41 and CSA Std. C22.2 No. 65 being acceptable as grounding and bonding
equipment suitable for direct burial. Thomas & Betts grid and ground rod connectors also satisfy the
recommended practice for the selection of grounding connector joints described in the IEEE 837 standard
for qualifying permanent connections used in substation grounding.
The connectors conform to the following IEEE Standard 837 requirements:
• 350° C current cycling
• Freeze-thaw test
• Accelerated aging — nitric acid/salt spray
• Mechanical, tensile and electromagnetic force (EMF) criteria
NEC and National Electrical Code are registered trademarks of the National Fire Protection Association, Inc.
Reliable installations through compression connections
The Thomas & Betts method, utilizing compression tools with matching dies, forms the connector and
conductor into a solid, homogeneous mass to provide an optimum electrical bond between connector and
conductor. The dies are designed to produce a circumferential, hex-shaped compression rather than a
simple indent. The circumferential compression creates a large area of high-pressure contact between
cable and connector which, in turn, ensures high conductivity, low resistance and high pull-out values
exceeding all industry requirements.
Before
Compression
After
Compression
This installation method results in a long-lasting, low-installed cost connection.
You can install it and forget it. Before compression, typical cable connector cross
section of cable and connector consists of about 75% metal and 25% air. After
Thomas & Betts method compression, the cross section shows 100% metal with
virtually no air spaces.
Mobile Application
Vehicle
4
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Technical Services
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www.tnb.com
Overview
The EZGround System
Thomas & Betts offers its complete line of grid-ground
compression connectors. Our EZGround™ connectors are
designed for direct burial and offer a safe, efficient alternative
to exothermic welding products. Grid-ground installations do not
require explosive charges and can be installed in various climate
conditions. These range-taking products will reduce the number
of connectors and dies needed for your installation.
1
C-Taps
7
Lug
2
Figure 8 Connector
8
Splice/Two-Way Connector
3
Steel Grounding Stud TBG Series
9
Grounding Plate
4
Figure 6–8 Connectors
10
Pigtail Connectors
Thomas & Betts EZGround products meet all applicable
standards (IEEE 837, UL® 467, CSA 22.2). Connectors are
prefilled with oxide inhibitor and sealed.
5
Figure 6–6 Connectors
11
I-Beam Clamp
6
GG Connectors
12
Figure 6 Connector
™
11
7
9
5
Connectors & Grounding — Blackburn® Grounding Systems
™
3
12
9
1
2
5
10
4
6
12
4
6
5
5
4
8
5
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United States
Tel: 901.252.8000
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Fax: 901.252.1354
Technical Services
Tel: 888.862.3289
5
EZGround Compression Grounding Connectors
Connectors & Grounding — Blackburn® Grounding Systems
™
Figure 6 Compression Ground Rod Tap Connector
Main
Main
Tap
Tap
Tap
HH
TT
54855
54860
54865-CK
54875
54885
54890
54895
54900
MEETS
DB
T
IEEE
837 REQUIREMENTS
Dimensions
(in.)
Main
Tap
A Ground Rod
B Cable Range
T
H
Dies for TBM
14M, 13100A
or TBM15I
1/0 Str.–.250 kcmil or 1⁄2"–5⁄8" Rod
1/0 Str.–.250 kcmil or 1⁄2"–5⁄8" Rod
1/0 Str.–250 kcmil or 1⁄2"–5⁄8" Rod
#6 Sol.–#2 Str.
250 kcmil–500 kcmil or 5⁄8"–3⁄4" Rod
250 kcmil–500 kcmil or 5⁄8"–3⁄4" Rod
250 kcmil–500 kcmil or 5⁄8"–3⁄4" Rod
250 kcmil–500 kcmil or 5⁄8"–3⁄4" Rod
#4 Sol.–#2 Str.
1/0 Str.–2/0 Str.
3/0 Str.–250 kcmil
#6 Sol.–#2 Str.
#4 Sol.–#2 Str.
1/0 Str.–2/0 Str.
3/0 Str.–250 kcmil
350 kcmil–500 kcmil
#3 Rebar 3⁄8 thru 1⁄2 #4 Rebar
#3 Rebar 3⁄8 thru 1⁄2 #4 Rebar
#3 Rebar 3⁄8 thru 1⁄2 #4 Rebar
—
#5 Rebar 5⁄8 thru 3⁄4 #6 Rebar
#5 Rebar 5⁄8 thru 3⁄4 #6 Rebar
#5 Rebar 5⁄8 thru 3⁄4 #6 Rebar
#5 Rebar 5⁄8 thru 3⁄4 #6 Rebar
#4 Sol.–#2 Str.
1/0 Str.–2/0 Str.
3/0 Str.–.250 kcmil
—
#4 Sol.–#2 Str.
1/0 Str.–2/0 Str.
3/0 Str.–250 kcmil
350 kcmil–500 kcmil
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
13⁄8"
115⁄16"
23⁄16"
23⁄16"
29⁄16"
115⁄16"
21⁄8"
23⁄16"
27⁄16"
15G86R
15G86R
15G86R
15501A
15G126R
15G126R
15G126R
15G121R
Application
Cat. No.
H
Cable to Rebar Application
3
* Tin-plated version available for galvanized ground rods. Add suffix -TP.
Figure 8 Compression Ground Rod Tap Connector
B
B
HH
A
A
TT
DB
MEETS
IEEE
837 REQUIREMENTS
Dimensions (in.)
Cat. No.
GR12-202
GR58-202
GR34-202
GR1-202
GR12-40250
GR58-40250
GR34-40250
GR1-40250
GR58-300500
GR34-300500
GR1-300500
6
A Ground Rod
B Cable Range
⁄2"
5
⁄8"
3
⁄4"
1"
1
⁄2"
5
⁄8"
3
⁄4"
1"
5
⁄8"
3
⁄4"
1"
#2 AWG–2/0 AWG
#2 AWG–2/0 AWG
#2 AWG–2/0 AWG
#2 AWG–2/0 AWG
3/0 AWG–250 kcmil
3/0 AWG–250 kcmil
3/0 AWG–250 kcmil
3/0 AWG–250 kcmil
300–500 kcmil
300–500 kcmil
300–500 kcmil
1
United States
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Fax: 901.252.1354
T
H
Dies for TBM14M, 13100A or TBM15I
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
115⁄16"
131⁄32"
23⁄16"
29⁄16"
115⁄16"
21⁄8"
23⁄16"
27⁄16"
21⁄8"
27⁄16"
211⁄16"
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
7
Technical Services
Tel: 888.862.3289
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EZGround Compression Grounding Connectors
™
Element
Element AA
TT
TT
D
D
L
Element BB
Element
T
T
LL
Dimensions (in.)
Cat. No.
54855LR12*
54885LR12*
54865LR58*
54895LR58*
54875LR34*
54900LR34*
54910LR100
54920LR100
A Ground Rod
B Cable Range
⁄2"
1
⁄2"
5
⁄8"
5
⁄8"
3
⁄4"
3
⁄4"
1"
1"
#2 AWG–250 kcmil
250 kcmil–500 kcmil
#2 AWG–250 kcmil
250 kcmil–500 kcmil
#2 AWG–250 kcmil
250 kcmil–500 kcmil
#2 AWG–250 kcmil
250 kcmil–500 kcmil
1
MEETS
DB
IEEE
837 REQUIREMENTS
Dies for TBM14M, 13100A or TBM15I
D
L
Element A
Element B
⁄16"
5
⁄16"
5
⁄16"
5
⁄16"
1
⁄2"
1
⁄2"
1
⁄2"
1
⁄2"
21⁄2"
21⁄2"
21⁄2"
21⁄2"
25⁄8"
25⁄8"
25⁄8"
25⁄8"
15G86R
15G126R
15G86R
15G126R
15G86R
15G121R
15G86R
15G126R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
15G121R
5
* Tin-plated version available for galvanized ground rods. Add suffix -TP.
Connectors & Grounding — Blackburn® Grounding Systems
Figure 6 to 8 Compression Ground Rod to Grid Connectors
Figure 6 to 6 Compression Ground Grid Connectors
Element A
T-T
T-T
L
D
Element B
L
T
MEETS
DB
Cat. No.
Element A
Element B
Element B
to Ground
Rod
54855L
54865L
54875L
54885L
54895L
54900L
#6 Sol.–#2 Str.
#1 Str.–250 kcmil
#2 Str.–250 kcmil
250 kcmil–500 kcmil
250 kcmil–500 kcmil
250 kcmil–500 kcmil
#6 Sol.–#2 Str.
#6 Sol.–#2 Str.
#2 Str.–250 kcmil
#6 Sol.–#2 Str.
#2 Str.–250 kcmil
250 kcmil–500 kcmil
—
1
⁄2"–5⁄8"
1
⁄2"–5⁄8"
5
⁄8"–1⁄2"
5
⁄8"–1⁄2"
5
⁄8"–1⁄2"
Cable to Cable
www.tnb.com
Element B to
Rebar
—
3
⁄8–1⁄2" #3–#4 Rebar
3
⁄8–1⁄2" #3–#4 Rebar
5
⁄8–3⁄4" #5–#6 Rebar
5
⁄8–3⁄4" #5–#6 Rebar
5
⁄8–3⁄4" #5–#6 Rebar
United States
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Dimensions (in.)
IEEE
837 REQUIREMENTS
Die Selection for TBM14M,
13100A or TBM15I
D
T
T-T
A
B
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
7
⁄8"
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
11⁄8"
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
3
⁄4"
11⁄8"
15501A
15G86R
15G86R
15G126R
15G126R
15G121R15
15501A
15501A
15G86R
15501A
15G86R
G121R
7
3
Technical Services
Tel: 888.862.3289
3
7
EZGround Compression Grounding Connectors
One-piece construction for cable-to-cable,
cable-to-rod, “T” and “X” connections.
Cable-to-Cable or Cable-to-Rod Connectors
Connectors & Grounding — Blackburn® Grounding Systems
™
8
• Suitable for direct burial or in concrete
• Replaces exothermic welds
• Made from high-conductivity
wrought copper
• Conforms to IEEE 837 standard
• UL® 467
DB
Cable to Cable Range
Cat. No.
Rod to Cable
Main
Die Code
Branch
Die Code
Ground Rod
Die Code
Cable
Die Code
GG21-21
GG10-10
GG2030-21
GG2030-10
GG2030-2030
#2 or #1
1/0
2/0 or 3/0
2/0 or 3/0
2/0 or 3/0
45
54
60
60
60
GG40250-21
4/0 or 250
71
#2 or #1
1/0
#2
1/0
2/0 or 3/0
#2
#1
45
54
45
54
50
45
50
—
—
—
—
—
45
50
4/0 or 250
71
1/0
54
1/0
65
GG40250-2030
4/0 or 250
71
2/0 or 3/0
60
GG40250-40250
4/0 or 250
71
4/0 or 250
71
GG350-350
350 kcmil
80H
350
80H
GG500-40250
500 kcmil
87
4/0 or 250
71
GG500-500
500 kcmil
87
500
87
—
—
—
—
—
71
80H
71
80H
71
80H
71
80H
—
80H
87H
87
—
—
—
—
—
#2 or #1
#2 or #1
GG40250-10
2/0 or 3/0
2/0 or 3/0
4/0 or 250
4/0 or 250
—
500
500
500
60
60
71
71
—
87
87
87
GG500-350
500 kcmil
87H
350
80
87H
350
80H
GG500-2030
500 kcmil
87H
2/0 or 3/0
60
—
—
—
—
—
1
⁄2"
5
⁄8"
1
⁄2"
5
⁄8"
1
⁄2"
5
⁄8"
1
⁄2"
5
⁄8"
—
5
⁄8"
3
⁄4"
3
⁄4"
5
⁄8"
3
⁄4"
5
⁄8"
3
⁄4"
87H
2/0 or 3/0
60
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EZGround Compression Grounding Connectors
For copper cable-to-cableground-grid connections.
Type GRD — Cable-to-Cable Connector
™
Connectors & Grounding — Blackburn® Grounding Systems
• Cast of high-conductivity bronze alloy
• Suitable for direct burial
A
B
C
A
B
DB
Conductor Size
Main
Tap
Min.
(mm 2)
Max.
Installation Information
Dimensions (in.)
Min.
Max.
(mm 2)
Min.
(mm 2)
Ground
Rod
Hyd.
Tool
Die
No.
Crimps
A B Cat. No.
Max.
Min.
Max.
(mm 2)
GRD2
GRD20
GRD420
1
2/0
250 kcmil
2
1/0
4/0
42.4
67.4
126.6
33.6
53
107
1
2/0
2/0
2
1/0
1/0
42.4
67.4
67.4
33.6
53
53
—
—
5
⁄8
TBM14M
TBM14M
TBM14M
B09CH
B10CH
B12CH
1
1
2
GRD40
250 kcmil
4/0
126.6
107
250 kcmil
4/0
126.6
107
5
⁄8
TBM14M
B12CH
2
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C
2 ⁄2
3
35⁄8
11
⁄16
⁄16
11
⁄16
11
13
7
35⁄8
11
⁄16
13
1
⁄16
⁄8
13
⁄16
⁄16
9
EZGround Compression Grounding Connectors
For connecting perpendicular runs of
stranded copper cable to ground rod.
Two Cables-to-Ground Rod Connector —
Heavy-Duty Cast Copper ††
Connectors & Grounding — Blackburn® Grounding Systems
™
L1L1 Nom.
Nom.
L2 Nom.
L2 Nom.
L1 Nom.
L1 Nom.
DB
Two Cables-to-Ground Rod Connector — Heavy-Duty Cast Copper††
Cable Size
Cat. No.
Main
53065-58GR
53065-34GR
Overall Dim. (in.)
Tap
Ground Rod Dia.
TBM15I Die for Cable Code
L1
L2
TBM15I Die for Ground Rod Code
⁄8" & 1⁄2"
3
⁄4"
87H
87H
415⁄16
415⁄16
31⁄4
33⁄4
87H
106H
250 or 4/0 250 or 4/0
250 or 4/0 250 or 4/0
5
Installs with Hydraulic Tools with hex crimp dies.
††
Does not meet IEEE 837.
Copperweld® Conductors & Rebar — for Use with Cast Copper Connections
Cable Size
Reinforcing Rod Size
Copperweld® Conductor Size
#2, #1 AWG
1/0, 2/0 AWG
4/0 AWG, 250 kcmil
300–350 kcmil
500 kcmil
—
#3
#4
#5
#6
(3) #8 or (3) #6
⁄8 — (7) #8 or 7⁄16 — (7) #7
7
⁄16 — (19) #9 or (7) #5
21
⁄32 — (19) #8 or 5⁄8 — (7) #4
13
⁄16 — (19) #6
3
Copperweld is a registered trademark of Copperweld Corporation.
UL® Listed for use with cast copper connectors.
10
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EZGround Compression Grounding Connectors
Grounding Grid Connectors — Heavy-Duty Cast Copper ††
™
53065
L2 Nom.
Nom.
L2
Nom.
L1L1Nom.
DB
Rod to Cable Range
Rod to Cable Installing
Die Code for TBM14M,
13100A or TBM15I
Cable to Cable Range
Connectors & Grounding — Blackburn® Grounding Systems
53055
Overall
Dimension (in.)
Cat. No.
Rod Size (in.)
Cable Range
Main
Branch
Rod Barrel
Cable
Barrel
L1
L2
53055
53059†
53060†
53065†
53069†
53071†
53073†
53075†
53080†
—
1
⁄2–5⁄8
1
⁄2–5⁄8
1
⁄2–5⁄8
3
⁄4
3
⁄4
3
⁄4
1
1
—
#2–#1 AWG
1/0–2/0 AWG
4/0 AWG–250 kcmil
1/0–2/0 AWG
4/0 AWG–250 kcmil
1/0–2/0 AWG
4/0 AWG–250 kcmil
500 kcmil
1/0–2/0 AWG
4/0 AWG–250 kcmil
4/0 AWG–250 kcmil
4/0 AWG–250 kcmil
300–350 kcmil
300–350 kcmil
500 kcmil
500 kcmil
500 kcmil
1/0–2/0 AWG
#2–#1 AWG
1/0–2/0 AWG
4/0 AWG–250 kcmil
1/0–2/0 AWG
4/0 AWG–250 kcmil
1/0–2/0 AWG
4/0 AWG–250 kcmil
500 kcmil
—
87H
87H
87H
106H
106H
125H*
125H*
125H*
66
54H
87H
87H
66
106H
66
87H
125H*
37⁄8
45⁄32
47⁄16
4 ⁄16
419⁄32
51⁄4
413⁄16
69⁄16
53⁄16
37⁄8
49⁄16
45⁄16
45⁄16
419⁄32
425⁄32
47⁄8
5
53⁄16
Cat. No. 15500 adapter is required for all 15500 Series dies, not for 15600 Series.
†
Ground rods 4/0–250 wire barrels suitable for 1⁄2" and 5⁄8" rod.
500 kcmil wire barrels suitable for 1" rods.
300–500 kcmil wire barrels suitable for 5⁄8" rods.
Hydraulic tools only.
††
Does not meet IEEE 837.
* 125H die for 15-ton tool only.
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11
EZGround Compression Grounding Connectors
Connectors & Grounding — Blackburn® Grounding Systems
™
C-Taps
H
L
MEETS
DB
IEEE
837 REQUIREMENTS
Dimension (in.)
Cat. No.
CTP22
CTP202
CTP2020
CTP25020
CTP250250
CTP50020
CTP500250
CTP500500
Main
Tap
H
L
Dies for TBM14M 13100A or TBM15I *
Crimps
#6 Sol.–#2 Str.
#1 Str.–2/0 Str.
#1 Str.–2/0 Str.
3/0 Str.–250 kcmil
3/0 Str.–250 kcmil
300–500 kcmil
300–500 kcmil
300–500 kcmil
#6 Sol.–#2 Str.**
#6 Sol.–#2 Str.**
#1 Str.–2/0 Str.
#6 Sol.–2/0**
3/0 Str.–250 kcmil
#6 Sol.–2/0**
3/0 Str.–250 kcmil
300–500 kcmil
1.16
1.41
1.54
1.97
2.06
2.42
2.67
2.91
.75
.75
.75
.75
.88
.88
.88
1.10
HBKC
15501A
15501A
15G86R
15G86R
15G121R
15G121R
15G121R
1
1
1
1
1
2
2
3
Material: High-Conductivity Copper.
* Cat. No. 15500 adapter required if using TBM15I and 155XX series dies.
** #6 AWG branch must be doubled.
Copper C-Crimps
L
H
DB
Dimension (in.)
Cat. No.
BC48
BC46-BB
BC44
BC24
BC22
BC202
BC2020-BB
BC402
BC4020
BC4040
Run
Tap
Die Index
Installing Die Tbm14m 13100A, Tbm151
h
L
#6 Sol.–#4 Str.
#6 Sol.–#4 Str.
#6 Sol.–#4 Str.
#2 Sol.–#2 Str.
#2 Sol.–#2 Str.
1/0 Sol.–2/0 Str.
1/0 Sol.–2/0 Str.
3/0 Str.–4/0 Str.
3/0 Str.–4/0 Str.
3/0 Str.–4/0 Str.
#8 Sol.–#8 Str.
#6 Sol.–#6 Str.
#4 Sol.–#4 Str.
#8 Sol.–#4 Str.
#2 Sol.–#2 Str.
#8 Sol.–#2 Str.
1/0 Str.–2/0 Str.
#6 Sol.–#2 Str.
1/0 Sol.–2/0 Str.
3/0 Sol.–4/0 Str.
BG or 5⁄8
BG or 5⁄8
BG or 5⁄8
C
C
E or O
E or O
F or D3
F or D3
F or D3
B58CS
B58CS
B58CS
HBKC
HBKC
HO
HO
HD
HD
HD
⁄64
41
⁄64
41
⁄64
3
⁄4
3
⁄4
15
⁄16
15
⁄16
11⁄16
11⁄16
11⁄16
⁄16
⁄4
51
⁄64
63
⁄64
13⁄64
15⁄16
111⁄32
15⁄8
15⁄16
15⁄16
41
Does not meet IEEE 837.
Material: High-Conductivity Copper.
UL® 467 Listed.
††
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9
3
EZGround Compression Grounding Connectors
Perform line tap-offs, dead-ending and
grounding on a range of conductors.
™
• Can be held in the dies or jaws of an installation
tool, then hooked directly over the line for timesaving installations
• Manufactured from pure electrical-grade copper
for a highly conductive, low resistance, reliable
connection
• Die references marked
on connector for easy
identification
• RUS Accepted
CC 4040
Copper C-Type Compression Taps
Copperweld-Copper Conductor
Wire Range
Cat. No.
A Groove
B Groove
CC 48
CC 46
CC 44
CC 24*
CC 22
CC 202
CC 2020
CC 402
CC 4020
CC 4040
#6 Sol.–#4 Str.
#6 Sol.–#4 Str.
#6 Sol.–#4 Str.
#2 Sol.–#2 Str.
#2 Sol.–#2 Str.
1/0 Sol.–2/0 Str.
1/0 Sol.–2/0 Str.
3/0 Sol.–4/0 Str.
3/0 Sol.–4/0 Str.
3/0 Str.–4/0 Str.
#8 Sol.–#8 Str.
#6 Sol.–#6 Str.
#4 Sol.–#4 Str.
#8 Sol.–#4 Str.
#2 Sol.–#2 Str.
#8 Sol.–#2 Str.
1/0 Sol.–2/0 Str.
#6 Sol.–#2 Str.
1/0 Sol.–2/0 Str.
3/0 Str.–4/0 Str.
Installing Dies
Length (in.)
TU, BG, 5⁄8
5
⁄8
TM or C
3
E or O
7
8A — Use C-Tap accommodating #6 str. Copper
6A — Use C-Tap accommodating #4 str. Copper
4A — Use C-Tap accommodating #2 str. Copper
2A — Use C-Tap accommodating 1/0–2/0 Copper
⁄4
⁄8
11⁄16
F or D3
Connectors & Grounding — Blackburn® Grounding Systems
Copper C-Type Compression Taps
* When using #1 Str. in the A Groove, the B Groove will accommodate #6 or #8 Str. or #8 Sol.
Note: For tin-plating option, add “-TN” suffix to the catalog number.
Hex compression intimately bonds
cable directly to ground rod.
Pigtail Connectors
• Figure-8 connectors
• Conforms to IEEE 837 standard
• UL® 467 Listed
MEETS
DB
Cat. No.
GR12-306
GR58-406
GR34-4010
Cable Range
One Cable: 3/0 to #6 AWG
Two Cables: #2 to #6 AWG
One Cable: 4/0 to #6 AWG
Two Cables: #2 to #6 AWG
One Cable: 4/0 to 1/0 AWG
www.tnb.com
IEEE
837 REQUIREMENTS
Ground Rod
Die Code for TBM14M,
13100A or TBM15I
⁄2"
87H
⁄8"
87H
⁄4"
99H
1
5
3
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When connecting cable to ground
rod for direct burial or in concrete,
the connector shall be wrought
copper with minimum conductivity
of 99% I.A.C.S., such as Thomas
& Betts series GR12-306. Hex
compression with die code
embossing shall be used.
13
EZGround Compression Grounding Connectors
Connectors & Grounding — Blackburn® Grounding Systems
™
Ground Plates
13⁄4
2X 1⁄2-13 UNC
31⁄4
⁄4
3
2
4X 1⁄2-13 UNC
13⁄4
5 ⁄32
25
⁄8-16 UNC
3
⁄8-16 UNC
3
H
Fig. 2
Fig. 1
DB
Cat. No.
GP2250-2
GP2250-4
GP250500-2
GP250500-4
14
Cable Range
H
Cable Range
MEETS
IEEE
837 REQUIREMENTS
Fig.
Cable Range
H
Dies
1
2
1
2
#2–250 kcmil
#2–250 kcmil
250–500 kcmil
250–500 kcmil
35⁄8"
47⁄32"
35⁄8"
47⁄32"
15G86R
15G86R
15G126R
15G126R
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EZGround Compression Grounding Connectors
Knurling ensures excellent mechanical
pull-out and electrical continuity.
Type TBGS — Structural Grounding Studs
™
• Knurled portion of stud resists
pull-out and provides electrical
continuity to ensure the integrity
of the grounding circuit
• Constructed of high-strength steel
and coated with corrosion-resistant
copper cyanide
.360" Dia
.235" Dia
Intersecting medium knurling
(2.10" long)
Intersecting medium knurling
(2.10" long)
Minimum flat contact
surface WIDTH .180
LENGTH 1.125
Minimum flat contact
surface WIDTH .290
LENGTH 1.125
45°
45°
Connectors & Grounding — Blackburn® Grounding Systems
• Easily welded to steel structures
with minimal construction
welding equipment
• Connect to grounding conductors
with appropriate Thomas & Betts
grounding connectors
45°
45°
TBGS-14
TBGS-38
.735" Dia
.610" Dia
Intersecting medium knurling
(2.10" long)
Intersecting medium knurling
(2.10" long)
Minimum flat contact
surface WIDTH .550
LENGTH 1.125
Minimum flat contact
surface WIDTH .530
LENGTH 1.125
45°
45°
TBGS-34
TBGS-58
Cat. No.
Rod Size
TBGS-14
TBGS-38
TBGS-58
TBGS-34
⁄4"
⁄8"
5
⁄8"
3
⁄4"
1
3
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15
EZGround Compression Grounding Connectors
Connect ground cable to I-beam or any
1" maximum structural steel member —
without welding or drilling.
Connectors & Grounding — Blackburn® Grounding Systems
™
I-Beam Ground Clamp
• Breakaway bolt head shears at
predetermined torque to ensure
tight connection
• Heavy-duty compression lug provides
excellent current-carrying capabilities
• Surface of steel must be cleaned
in accordance with installation
instruction sheet provided
with product
• Connector made of high-conductivity
cast copper bright dip
• Clamp made of drop-forged
high-grade steel, zinc plated
MEETS
IEEE
837 REQUIREMENTS
Cat. No.
IBG2-10
IBG20-40
IBG350-500
Wire Range
TBM15I Installing Tool,
Die Code
#2 thru 1/0 AWG
2/0 thru 4/0 AWG
350 thru 500 kcmil
71
87
115
Use hydraulic tooling with hex crimp dies.
Satisfies requirements of NEC® 250.64(C)(1)
for connecting to grounding electrode system.
Cast Copper Two-Way Connector —
Heavy-Duty
• Made from high-conductivity cast copper
• Electro-tin-plated finish
DB
Cat. No.
Die Size
Die Code
53504
53505
53506
53507
53508
53509
53510
53511
53512
53513
53515
53518
53523
#8 AWG
#6 AWG
#4 AWG
#2 AWG
#1 AWG
1/0 AWG
2/0 AWG
3/0 AWG
4/0 AWG
250 kcmil
350 kcmil
500 kcmil
750 kcmil
29
29
29
45
45
45
66
66
66
76
99
99
112
Use hydraulic tools with hex dies.
NEC and National Electrical Code are registered trademarks of the National Fire Protection Association, Inc.
16
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EZGround Compression Grounding Connectors
Provides a permanent, reliable connection.
™
Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamp
• Crimps to cable
• Clamps to ground rod and rebar
• Uses standard Blackburn® featuring
the Color-Keyed® System hand and
hydraulic tools
• Color coded for easy installation
die selection
• Made from high-conductivity
wrought copper
• Furnished with stainless steel
hardware, 1⁄4" washers, bolts
and nuts
• UL® 467 — approved for direct burial
DB
Cat. No.
Wire Size
Ground Rod
Diameter (in.)
CC2C-45R
CC1C-45R
CC10C-56R
CC20C-56R
CC40C-56R
#2–#3 AWG
#1 AWG
1/0 AWG
2/0 AWG
4/0 AWG
⁄2 or 5⁄8
1
⁄2 or 5⁄8
5
⁄8 or 33⁄4
5
⁄8 or 33⁄4
5
⁄8 or 3⁄4
1
Rebar #
(in.)
Bolt Size
(in.)
Die Code
⁄5
4
⁄5
5
⁄6
5
⁄6
5
⁄6
⁄4
1
⁄4
3
⁄8
3
⁄8
3
⁄8
33 Brown
37 Green
42 Pink
45 Black
54 Purple
4
1
Terminate or connect continuous
runs of copper cable to flat surfaces.
Flat-Surface Ground Clamp
• Captivated “keeper bar” design extends cable
range and helps hold cable prior to crimping,
facilitating installation
• Saddles marked with conductor size and die code
• Conductor can be assembled to saddle
with standard dies and hydraulic tools
• Made from high-conductivity cast copper
H
H
G
G
Bolt
size
Bolt Size
C
C
D
D
DB
Cat. No.
Wire Range
53055FL
53065FL
1/0–2/0 AWG
4/0 AWG–
250 kcmil
Hex Die
Inches
Bolt
Hole
Die Code
No.*
Unit
Quan.
Std.
Pkg.
Wt. per
100
Cat. No.
Die Code No.
L1
L2
⁄8"
3
⁄8"
66
87H
2
2
10
10
75
112
15534*
15506**
66
87H
43⁄32
41⁄2
321⁄32
43⁄32
3
D
C
H
⁄32
5
⁄16
13⁄8
13⁄8
1
1
9
* TM14M, 13100A, TBM15I with hex crimp dies.
** TBM15I with hex crimp dies only.
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17
EZGround Compression Grounding Connectors
Bond copper conductors to steel or aluminum
fence post or top rail of round fence posts.
Connectors & Grounding — Blackburn® Grounding Systems
™
Grid-to-Fence Ground Clamp
• Provides quick, dependable
installation at low installed cost
• Uses no incendiary materials
Cat. No.
FG2040R2
FG2040R25
FG2040R3
FG210R2
FG210R25
FG210R3
• Body made from cast copper alloy
with steel U-bolt
Ground Cable Range
Die Code
Steel & Aluminum
Line Post Range (in.)
2/0–3/0–4/0 Str.
2/0–3/0–4/0 Str.
2/0–3/0–4/0 Str.
#2–#1–1/0 Sol. or Str.
#2–#1–1/0 Sol. or Str.
#2–#1–1/0 Sol. or Str.
76
76
76
66
66
66
2
21⁄2
3
2
21⁄2
3
Install with hydraulic tooling with hex crimp dies.
Cuts installation time in half — with results
superior to conventional connectors.
Bus Bar Connector
• Installs with conventional
compression tools
• Made from pure wrought copper
and prefilled with oxide inhibitor
• UL® Listed and CSA certified
• Insulated with die HDF
Use this side of the connector
when using only one wire.
1.03"
• Unique design
• Fast and easy installation
• Superior low-resistance, highconductivity connections
• Produces a permanent connection
with any combination of copper from
#6 to #2 solid or stranded conductor,
to 1⁄4" copper bus bar
Use with
one wire
#2 AWG
Use with
2nd wire
#2 AWG
1.40"
⁄4" Bus
GBBC22
1
GBBC22
GBBC26
Bus Bar Thickness (in.)
Conductor Range
Std. Pkg. Qty.
⁄4
⁄4
#2 AWG–#2 AWG
#6 AWG–#2 AWG
1
1
1
1
EZGround ™ Bus Bar Connectors install in less than two minutes with one easy crimp! The connector attaches
directly to the bus, saving the labor-intensive process of drilling and tapping. The unique jaw interface of the
EZGround ™ Bus Bar Connector grips the copper bus, resulting in a low-resistance, high-conductivity connection.
The EZGround ™ Bus Bar Connector can be used in OEM applications or telecom applications — cellular, PCS
and others. It provides a continuous ground to the copper bus bar, making it ideal for hut and tower applications.
The design enables installation in virtually any position, horizontal or vertical, and is suitable for inside and outside
plant use. Installation can be completed using any T&B compression tool that accepts U-shaped die sets and is rated
12-ton or higher.
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Use this side of the connector
only when using two wires.
1.03"
Cat. No.
Use with
one wire
#2–#6 AWG
1.40"
⁄4" Bus
GBBC26
1
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Use with
2nd wire
#6 AWG
EZGround Compression Grounding Connectors
A “snap” to assemble — no special tools required.
SnapTap Connector
™
• Designed for bonding and grounding applications using copper,
steel strand and ground rod
• Easily installed with channel locks or pliers
• Made from high-strength aluminum alloy with tin plating
• Offers excellent electrical and mechanical characteristics
• UL® 467 tested — exceeds performance requirements
With the SnapTap ™ Connector, you can achieve an electrically superior,
pressure-fit connection in seconds without expensive tooling. The connector
is also easy to disassemble, requiring only a flat-head screwdriver to release
the connected body. A one-piece design keeps parts together, minimizing
loss of components prior to assembly. Simply separate the pieces and snap
them in place for installation. An audible “snap” indicates that the connection
is complete and properly installed.
INSTALL
Bend back and forth
to separate
Body
piece
Separation
point
Body
piece
Body piece
FIG. 2
FIG. 1
General Usage Instructions
Separate
No special tools required. Use ordinary parallel jaw pliers
to separate the connector into two parts. Hold one side of
connector with pliers and bend opposite side back and forth
until parts separate (see Fig. 1).
Caution: Be careful not to pinch fingers or thumb when separating parts.
Keep fingers out of bend path when bending part against plier jaws.
Installation
1. Strip the insulation from each de-energized conductor.
Be careful not to nick the conductor. Clean the conductor
ends with a wire brush or emery cloth if necessary.
2. Place each conductor into the grooves in BODY piece.
Press conductors with pliers to align and seat into grooves
(see Fig. 2).
FIG. 3
Connector Description
Pivot
groove
FIG. 4
Packaging
Main
Branch
Inner
Pack
#2 AWG Sol. Copper
#6 AWG Sol. Copper
1
⁄4" Steel Strand
5
⁄16" Steel Strand
3
⁄8" Steel Strand
1
⁄2" Steel Strand
1
⁄2" Ground Rod
1
⁄4" Steel Strand
5
⁄16" Steel Strand
3
⁄8" Steel Strand
1
⁄2" Ground Rod
#6 AWG Sol. Copper
#6 AWG Sol. Copper
#6 AWG Sol. Copper
#6 AWG Sol. Copper
#6 AWG Sol. Copper
#6 AWG Sol. Copper
#6 AWG Sol. Copper
(2) #6 AWG Sol. Copper
(2) #6 AWG Sol. Copper
(2) #6 AWG Sol. Copper
(2) #6 AWG Sol. Copper
20
20
20
20
20
20
20
20
20
20
20
Cat. No.
JP62
JP66
JP146
JP5166
JP386
JP126
JP126G
JP2614
JP26516
JP2638
JP2612G*
Snap
piece
Outer
Pack
Standard
Order
Quantity
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
200
Connectors & Grounding — Blackburn® Grounding Systems
™
Note: All Toolless Connectors are UL Listed. Only items with (*) are CSA listed.
3. Hold the conductors and BODY piece until it stops. Use
parallel jaw pliers and grip the SNAP and BODY pieces as
shown (see Fig. 3). Apply pressure until connector “snaps”
into place. Visually inspect snap to verify full insertion.
The connection is now complete (see Fig. 4).
Removal
The connector can be disassembled using a flat-head
screwdriver to pry the SNAP piece from BODY piece.
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19
Connectors & Grounding — Blackburn® Grounding Systems
Cast Copper Connectors for Grounding
A low-cost method of connecting directly to
bus bar, eliminating an interface connection.
Riser Cable Flag Connectors
for 600V Applications
• Made from high-conductivity wrought copper, plain finish
• All bolt holes are 3⁄8" on 1" centers
Installing tools: T&B Cat. No. TBM15I, TBM15BSCR, 13100A,
TBM14M and TBM14BSCR hydraulic tools only.
⁄8" dia. bolt holes
on 1" centers
3
B
A
B
A
C
C
Fig. 2
Fig. 1
Dimensions (in.)
Cat. No.
GFL2-1
GFL10-20
Fig. No.
1
1
GFL40-250
1
GFL350
1
GFL5001
1
GFL7501, 2
2
Cable Size
#2–#1 AWG
150/24
175/24
1/0 AWG
2/0 AWG
225/24
275/24
4/0–250 kcmil
325/24
450/24
550/24
350 kcmil
650/24
775/24
500 kcmil
925/24
750 kcmil
1100/24
1325/24
1600/24
Color Key
Die Code
No. of Crimps
Material Thk. (in.)
A
B
C
PINK
42
1
3
⁄32
35⁄8
4
25⁄16
BLACK
ORANGE
1
3
BLACK
45
50
45
45
⁄32
35⁄8
4
25⁄16
RED
71
2
5
⁄32
41⁄4
41⁄4
27⁄16
N/A
80
2
5
⁄32
41⁄4
41⁄2
23⁄8
BROWN
94
2
5
⁄32
51⁄4
47⁄8
23⁄8
BLACK
106
4
5
⁄32
85⁄8
43⁄4
25⁄8
TBM15I only.
Both “U” barrels must be crimped to a single, continuous length of conductor.
It is not to be used as a splice.
1
2
20
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Signal Reference
Grid Connector
• Clamps onto pedestal posts up to 1" diameter
square and 11⁄4" round
• Can be used as an “X” or “T” configuration cable to post
• High-conductivity wrought-copper construction
Installing Tools and Die Codes TBM14M and TBM15I
Cat. No.
SRG8-4
SRG2-1
SRG10-20
SRG30-40
Conductor
Die Cat. No.
Die Code
Color Code
#8
#6 to #4
#2 & #1
1/0 & 2/0
3/0 & 4/0
15527
15528
15508
15530
15511
29
33
42
50
54
Gray
brown
Pink
Orange
purple
Connectors & Grounding — Blackburn® Grounding Systems
Raised Floor Grounding Systems
Compresses #8 AWG
through 4/0 AWG cable.
Secures signal reference grid wire
to raised-floor support posts.
Signal Reference Grid Clamp
• Range-taking design accepts #8 to #4 AWG grid wire
and fits 1" round and 3⁄4" square trade size support posts
• Lay-in feature means no kinks or bends
• Quick, easy installation
• Only one screw to tighten
• Enables grid wire to make direct, low-resistance
contact Stamped-steel construction, zinc plated
Cat. No.
3900
3900BP (Bulk Pack)
Description
Wire Range
⁄4" Square to 1" Round
3
⁄4" Square to 1" Round
#8–#4
#8–#4
3
UL® File No. E-3060.
Approved for grounding and bonding per UL® 467.
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21
Connectors & Grounding — Blackburn® Grounding Systems
Raised Floor Grounding Systems and Ground Rod Accessories
Ground Electrode Boxes
Wt./100
Cat. No.
51628
51629
Description
Lb.
Kg
Standard
Package
Pregalvanized Steel
Hot-Dip Galvanized
1180
1200
536.3
545.4
5
5
14-gauge steel. 10" diameter, 12" depth.
Streamlined design reduces driving friction.
Type C — Sectional Ground Rod Couplings
• Threaded couplings of high-strength, corrosion-resistant alloy
• Tapped for use on all standard threaded sectional rods
Cat. No.
Size (Nominal Diameter)
50C
50LC*†
60C*‡
70C*
80C*
⁄2"
1
⁄2" L
5
⁄8"
3
⁄4"
1"
1
Thread Size
⁄2"–13 UNS
⁄16"–12 UNS
5
⁄8"–11 UNS
3
⁄4"–10 UNS
1"–8 UNS
1
9
* UL® Listed 467 (425H).
†
CSA lists rods 1⁄2" and larger, 10' and longer.
‡
RUS Accepted.
Use with all standard threaded couplings.
Type DS — Driving Studs
• Made of high-strength steel
• Compatible with all standard threaded couplings
Cat. No.
Size (Nominal Diameter)
50DS
50LDS*†
60DS*‡
70DS*
80DS*
⁄2"
1
⁄2" L
5
⁄8"
3
⁄4"
1"
1
Thread Size
⁄2"–13 UNS
⁄16"–12 UNS
5
⁄8"–11 UNS
3
⁄4"–10 UNS
1"–8 UNS
1
9
* UL® Listed 467 (425H).
†
CSA lists rods 1⁄2" and larger, 10' and longer.
‡
REA Accepted.
22
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Connectors & Grounding — Blackburn® Grounding Systems
Ground Rod Accessories and Ground Plates
For joining non-threaded, copper-bonded
steel ground rods.
Threadless Couplings and Driving Cap
• Couplings manufactured of high-strength, corrosion-resistant copper alloy
• High-strength hardened steel driving cap prevents “mushrooming”
of ground rod while driving to ensure proper fit of coupling
Dimensions (in.)
Cat. No.
Description
Length
Diameter
50LCNT*
60CNT2*
70CNT*
60DSNT
⁄2" L Threadless Coupling
5
⁄8" Threadless Coupling
3
⁄4" Threadless Coupling
5
⁄8" Threadless Driving Cap
3.0
2.5
3.0
4.0
.78
.69
.97
.88
1
* UL® Listed.
As efficient as two 10-ft. x 5⁄8" ground rods.
Galvanized Ground Plates
• 1⁄4" thick, hot-dipped galvanized
• Must be buried at least 600mm (24") below finish grade level,
according to CEC Rule 10-702
16±1⁄4
10±1⁄4
Cat. No.
Description
Conductor Range
1016TB
1016BTB
Galvanized Ground Plates
Galvanized Ground Plates with JAB58H Connector
#8 Sol. to 1/0 Str.
#8 Sol. to 1/0 Str.
2±1⁄4
3
7
⁄8
±1⁄4
⁄4
1
ø 5⁄8
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23
Connectors & Grounding — Blackburn® Grounding Systems
Ground Plates
More efficient than butt-wrapping poles.
Type GP — Copper Pole Bottom Ground Plates
for Multigrounded Neutral Construction
• Made of electrolytic sheet copper
• Built-in high-pressure connector for ground lead,
or supplied with #6 AWG copper pigtail pre-attached
• Plates are grooved for trapping moisture
Pigtail Wire Range
Cat. No.
GP100
GP110
GP114
GP1003
GP1008
GP1108
Min.
Max.
#14 Str.
#4 Sol.
#14 Str.
#4 Sol.
#14 Str.
#4 Sol.
#6 AWG Solid Cu Pigtail
with 18" Conductor
#6 AWG Solid Cu Pigtail
with 8-ft. Conductor
#6 AWG Solid Cu Pigtail
with 8-ft. Conductor
Diameter of Plate
Min. (mm )
Max. (mm )
(in.)
(mm)
6.3
6.3
6.3
25.6
25.6
25.6
71⁄2
10
14
191
254
356
—
—
71⁄2
191
—
—
71⁄2
191
—
—
10
254
2
2
Installed cost considerably
less than butt-wrapped poles.
Type PB — Copper Pole Ground Plates
• Installed on butt end of utility poles to provide
an economical, low-resistance neutral ground
• Plate portion fabricated of .025" pure copper
• PBGW connector is eye-bolt type, cast of corrosionresistant aluminum bronze alloy, with silicon bronze
nut and lockwasher
• PBH connector features riveted all-copper terminal
lug for connecting to grounding conductor
Wire Range Surface Area
Cat. No.
PBGW
PBH‡
‡
24
Max.
Min.
Finished Size
Sq. in.
2/0 Str.
#4 Str.
#10 Sol.
#14 Sol.
7 x 75⁄8
7 x 73⁄8
56
56
RUS Accepted.
United States
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®
D
Type JWR — Wide-Range Ground Rod Clamp
A
MAX.
• UL Listed for direct burial in earth/concrete
• Constructed from bronze alloy and
high-performance stainless steel bolt
• Provides wide range of connection sizes
• More than 300 lbs. torque capacity
®
B
C
DB
Nominal Rod Dia.
Cat. No.
Dimensions (in.)
(mm)
max.
min.
max. (mm2)
min. (mm2)
A (max.) Bolt
B
C
D
⁄8*
1
⁄2
5
⁄8
3
⁄4
9.5
12.7
15.8
19.0
1/0 Str.
1/0 Str.
1/0 Str.
1/0 Str.
10 Sol.
10 Sol.
10 Sol.
8 Sol.
53.4
53.4
53.4
53.4
5.2
5.2
5.2
8.3
1.535
1.535
1.535
1.535
1.050
1.050
1.050
1.050
.812
.812
.812
.812
.652
.652
.652
.652
3
JWR
Wire Range
(in.)
* 3⁄8" rod not recognized/listed by UL.
Long bearing surface
of clamp on ground wire
secures ground connection.
Connectors & Grounding — Blackburn® Grounding Systems
Ground Rod Clamps
UL Listed for both copper-clad
and galvanized ground rods.
A
MAX.
Type JAB — Ground Rod Clamps
• Cast of high-strength corrosion-resistant copper alloy
• Both hex head bolts and socket set screws available
• UL® Listed for direct burial
B
C
TYPE JABH
DB
Cat. No.
Socket Set
Screw
Hex Head
Bolt
JAB12*
JAB58
JAB34
—
JAB1
JAB12H
JAB58H
JAB34H
JAB34C
JAB1H
Nominal Rod Dia.
(in.)
(mm)
⁄2
12.7
5
⁄8
15.8
3
⁄4
19.0
3
⁄4 + 5⁄8 15.8 to 19.0
1
25.0
1
Wire Range
max.
min.
max.
(mm2)
2 Str.
1/0 Str.
1/0 Str.
4/0 Str.
4/0 Str.
10 Sol.
8 Sol.
8 Sol.
8 Sol.
8 Sol.
33.6
53.4
53.4
95.0
107.1
Dimensions (in.)
min.
(mm2)
A (max.)
Socket Screw
A (max.)
Hex Bolt
Screw Thread
Size UNC-2A
B
C
D
5.2
8.3
8.3
8.3
8.3
119⁄32
127⁄32
2
—
21⁄4
23⁄32
213⁄64
211⁄32
211⁄32
3
⁄16–14
7
⁄16–14
7
⁄16–14
7
⁄16–14
7
⁄16–14
⁄32
29
⁄32
11
⁄16
11⁄8
111⁄32
⁄8
1
1
11⁄32
11⁄16
⁄32
⁄16
51
⁄64
13
⁄16
1
7
27
7
19
11
* Not CSA listed
Add suffix P to Cat. No. for tin-plated clamp.
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25
Connectors & Grounding — Blackburn® Grounding Systems
Ground Rod Clamps
A dependable ground connection
offered at a substantial savings.
E
Type G — Budget-Line Ground Clamps
A
MAX.
D
• Cast of high-strength corrosion-resistant copper alloy
• Furnished with hex head bolts
• Simplified, compact design makes lasting, trouble-free connection
• UL® Listed for direct burial
B
C
DB
Nominal Rod Dia.
Cat.
No.
Wire Range
Dimensions (in.)
(in.)
(mm)
max.
min.
max. (mm2)
min. (mm2)
A (max.)
Bolt
⁄8
1
⁄2
5
⁄8
3
⁄4
9.5
12.7
15.8
19.0
4 Str.
2 Str.
2 Str.
2 Str.
10 Sol.
10 Sol.
10 Sol.
10 Sol.
21.1
33.6
33.6
33.6
5.2
5.2
5.2
5.2
13⁄8
—
—
—
G3*
G4
G5‡
G6
3
Screw Thread Size UNC-2A
B
C
D
⁄16–18
3
⁄8–16
3
⁄8–16
3
⁄8–16
⁄16
27
⁄32
29
⁄32
11⁄16
⁄2
3
⁄8
3
⁄8
3
⁄8
⁄64
37
⁄64
43
⁄64
13
⁄16
5
1
11
E
⁄8
⁄2
1
⁄2
1
⁄2
27
3
1
* Not UL Listed.
‡
RUS Accepted.
Add suffix P to Cat. No. for tin-plated clamp.
Axial groove keeps wire and rod in perfect alignment.
Types GG and GGH — Heavy-Duty Ground Rod Clamps
• Cast of high-strength corrosion-resistant copper alloy
• Both hex head bolts and socket set screws available
• Floating pressure bar distributes pressure evenly over large area of ground wire
Width Across Flats = 1⁄2"
Socket Size = .219
A
MAX.
A
MAX.
C
B
Cat. No.*
Socket Set
Screw
Hex Head
Bolt
GG12
GG58
—
GG12H
GG58H
GG34H
Type GGH
Nominal Rod Dia.
(in.)
(mm)
⁄2
5
⁄8
3
⁄4
12.7
15.8
19.0
1
Wire Range
max.
B
C
Type GG
min.
2 Str. 8 Sol.
2 Str. 8 Sol.
4/0 Str. 8 Sol.
Dimensions (in.)
max. (mm2)
min. (mm2)
A (max.)
Socket
Screw
33.6
53.6
120.6
8.3
8.3
8.3
113⁄64
151⁄64
—
A (max.)
Hex Bolt
Screw
Thread Size
UNC-2A
113⁄16
27⁄32
3
⁄16–14
7
⁄16–14
1
⁄2–14
* Add suffix P to Cat. No. for tin-plated clamp.
GG34H has no pressure bar or axial groove.
26
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7
B
C
⁄32 15⁄16
61
⁄64 15⁄16
13⁄8 11⁄4
27
Connectors & Grounding — Blackburn® Grounding Systems
Ground Rod Clamps
Drive-on design provides easy, tool-free
installation, high-reliability compressionfit connection and room for one or two
ground leads.
Type DGC — Drive-On Ground Clamps
• High-strength copper alloy provides increased tensile strength
and long-term corrosion resistance for direct-burial applications
• UL® 486A and UL® 467 Listed
• RUS Listed
DB
Cat. No.
DGC58-44‡
DGC58-66‡
DGC58-46*
‡
Ground Rod Size
Ground Wire Size
⁄8 (.555–.565)
5
⁄8 (.555–.565)
5
⁄8 (.555–.565)
(1) or (2) #4 Sol.
(1) or (2) #6 Sol.
(1) #4 Sol., (1) #6 Sol.
5
RUS Listed
* Not UL® Listed
Cable Tray Grounding Connector
• Malleable iron construction
• For use on cable tray
up to 5⁄32" thick
Cat. No.
10102-TB
10103-TB
Ground Wire Range
(AWG)
#8 Solid to #2 Stranded
#4 Stranded to 4/0 Stranded
Carriage Bolt Size
111⁄32
13⁄16
⁄16"–18
⁄8"–16
5
3
111⁄16
115⁄32
10102-TB
10103-TB
11⁄4
13⁄4
⁄8
3
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⁄32 MAX. CABLE
TRAY THICKNESS
5
⁄32
15
27
Connectors & Grounding — Blackburn® Grounding Systems
Structure Grounding
Bolt features square shank
to prevent turning and enable
clamp to be tightened with
a single wrench.
A
E
R
Type GTC — Tower Ground Clamps
H
D
• Castings of high-strength, corrosion-resistant copper alloy
• GTC23 and GTC24 are two-piece clamps for
connecting ground lead cable to flat metal surface —
ideal for grounding substations on tower footings
• GTC13 and GTC14 are economical one-piece clamps,
which perform the same function as two-piece clamps,
except under-pad support is omitted and conductor
connects directly to tower
• Add suffix L to catalog number for 1⁄2" channel thickness
Type GTC 13 and 14
A
G
E
B
H
D
Type GTC 23 and 24
Conductor Range
Cat.
No.
GTC13
GTC14
GTC23
GTC24
max.
min.
max.
(mm2)
2/0 Str.
250 kcmil
2/0 Str.
250 kcmil
#4 Sol.
2/0 Str.
#4 Sol.
2/0 Str.
67.4
126.6
67.4
126.6
Dimension (in.)
min.
(mm2)
21.1
67.4
21.1
21.1
Channel
Thickness
A
B
D
E
G
⁄4
1
⁄4
1
⁄4
1
⁄4
115⁄32
115⁄16
141⁄64
161⁄64
—
—
7
⁄16
5
⁄8
⁄16
3
⁄4
9
⁄16
3
⁄4
121⁄32
115⁄16
121⁄32
115⁄16
⁄32
113⁄32
13⁄32
13⁄8
1
9
13
H
R
⁄8
1
⁄2
3
⁄8
1
⁄2
⁄32
⁄16
—
—
3
7
5
For use with aluminum
or copper conductors.
⁄8" Nut
3
Split Washer
Flat Washer
CTG250 Wide-Range Tower
Ground Clamp
⁄8" Bolt with Ribbed
neck and Phillips
recessed head
3
• May be used in aluminum or galvanized-steel
cable tray
• Ribbed neck on the bolt prevents rotation
during tightening if .440" dia. hole is used
Cat. No.
Wide Range (2 sides)
Height
Width
Depth
Nut (Flats)
CTG250
#2 Sol. (.258 Dia.) 250 kcmil (.575 Dia.)
1.95
2.00
1.13
.560
Tin-plate body
Galvanized hardware
28
G
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L
W
Aluminum Lay-in Lug
Connector
H
• Manufactured from 6061-T6 aluminum
alloy for maximum strength and conductivity
• Open-faced design enables installer to
quickly lay-in grounding conductor as
jumper to multiple conduits with no break
in ground conductor
Fig. 2
Fig. 1
dimensions
Cat. No.
Fig.
No.
LL414
LL1014
LL306
LL2506
1
1
2
2
Cond. Range AWG
stud size
h
w
l
in.
(mm )
in.
(mm)
in.
(mm)
in.
(mm)
in.
(mm)
4–14
1/0–14
3/0–6
250–6
16–1.5
50–1.5
70–16
120–16
.22
.27
.33
.33
5.59
6.86
8.38
8.38
.78
1.17
1.56
1.79
19.81
29.72
39.62
45.47
.38
.60
.80
.80
9.65
15.24
20.32
20.32
1.07
1.50
2.00
2.20
27.18
38.10
50.80
55.88
2
Connectors & Grounding — Blackburn® Grounding Systems
Structure Grounding
Dual-rated for both
copper and aluminum
conductor.
90° C Rating (486B Listed)
UL Listed for direct burial.
®
Copper Lay-In Lug Connector
• Ideal for swimming pool grounding applications
• Carries “DB” marking for direct burial
• Open-faced design enables installer to quickly
lay-in grounding conductor as jumper to multiple
conduits with no break in ground conductor
DB
dimensions
Cond. Range AWG
Cat. No.
CULL414
CULL414-TP*
stud size
h
w
l
in.
(mm2)
in.
(mm)
in.
(mm)
in.
(mm)
in.
(mm)
4–14
4–14
16–1.5
16–1.5
.22
.22
5.59
5.59
.78
.78
19.81
19.81
.38
.38
9.65
9.65
1.07
1.07
27.18
27.18
90° C Rating (486B Listed)
* Tin plated
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29
Connectors & Grounding — Blackburn® Grounding Systems
Structure Grounding
Designed for grounding one or two
cables to steel structure or transformer.
Service Post Connectors
• For copper-to-copper connections
• Can also be used to tap one or two cables from bus bar
• Bolts machined from high-conductivity bronze alloy
• Nuts cold-formed from high-strength, corrosion-resistant
copper alloy
• Pressure bars copper through 4/0 and copper alloy
for 350 kcmil and above
• Bolts and nuts of traditional Blackburn hex design
for easy installation
• Available in sizes to accommodate AWG copper conductor
ranges of #12–500 kcmil stranded and #12–#2 solid
• Both single- and double-conductor and shortand long-stud versions available
• UL® 486A and UL® 467 Listed
Type SP-S — Service Post Connectors, Short Stud
Cat. No.
Conductor
Double
Single
Conductors
Stranded
max.
8
6mm2
7
SP1DS SP1SS
10mm2
5
SP2DS SP2SS
16mm2
3
SP3DS SP3SS
25mm2
1
SP4DS SP4SS
35mm2
1/0
SP5DS SP5SS
50mm2
2/0
SP6DS SP6SS
50mm2
4/0
SP8DS SP8SS
95mm2
350
SP9DS SP9SS
150mm2
500
SP10DS SP10SS
240mm2
SP0DS
30
SP0SS
min.
AWG mm
solid
max.
12
8
4mm2 10mm2
10
6
6mm2 10mm2
10
4
6mm2
—
10
2
6mm2
—
8
2
10mm2
—
2
1/0
35mm2
—
2
2/0
35mm2
—
2
4/0
35mm2
—
1/0
—
50mm2
—
3/0
—
95mm2
—
Type SP-L — Service Post Connectors, Long Stud
Cat. No.
2
min.
Diameter
Range (in.)
12
4mm2
10
6mm2
10
—
10
—
8
—
2
—
2
—
1
—
—
—
—
—
.146–.081 1
⁄4–20 x 1⁄2
—
.164–.102 1
⁄4–20 x 1⁄2
—
.206–.102 5
⁄16–18 x 5⁄8
—
.26–.102 3
⁄8–16 x 5⁄8
—
.332–.129 3
⁄8–16 x 5⁄8
—
.373–.258 1
⁄2–13 x 3⁄4
—
.419–.258 1
⁄2–13 x 3⁄4
—
.528–.289 5
⁄8–11 x 1
—
.681–.373 5
⁄8–11 x 1
—
.814–.47 3
⁄4–10 x 11⁄4
—
United States
Tel: 901.252.8000
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Stud
Size
Conductor
Double
SP0Dl
SP1Dl
SP2Dl
SP3Dl
SP4Dl
SP5Dl
SP6Dl
SP8Dl
SP9Dl
SP10Dl
Single
Conductors
Stranded
max.
min.
8
6mm2
7
SP1Sl
10mm2
5
SP2Sl
16mm2
3
SP3Sl
25mm2
1
SP4Sl
35mm2
1/0
SP5Sl
50mm2
2/0
SP6Sl
50mm2
4/0
SP8Sl
95mm2
350
SP9Sl
150mm2
500
SP10Sl
240mm2
SP0Sl
Technical Services
Tel: 888.862.3289
AWG mm 2
solid
max.
12
8
4mm2 10mm2
10
6
6mm2 10mm2
10
4
6mm2
—
10
2
6mm2
—
8
2
10mm2
—
2
1/0
35mm2
—
2
2/0
35mm2
—
2
4/0
35mm2
—
1/0
—
50mm2
—
3/0
—
95mm2
—
min.
Diameter
Range (in.)
12
4mm2
10
6mm2
10
—
10
—
8
—
2
—
2
—
1
—
—
—
—
—
.146–.081
—
.164–.102
—
.206–.102
—
.26–.102
—
.332–.129
—
.373–.258
—
.419–.258
—
.528–.289
—
.681–.373
—
.814–.47
—
www.tnb.com
Stud
Size
⁄4–20 x 1
1
⁄4–20 x 1
1
⁄16–18 x 1
5
⁄8–16 x 11⁄8
3
⁄8–16 x 11⁄8
3
⁄2–13 x 11⁄4
1
⁄2–13 x 11⁄4
1
⁄8–11 x 11⁄2
5
⁄8–11 x 11⁄2
5
⁄4–10 x 13⁄4
3
A
A
• For connecting copper or copper-clad steel
grounding conductor to ground rod or pipe
• Specially designed spacer provides proper
alignment between cable and electrode
and affords more positive contact area
• All components cast or forged
from copper alloy
• UL® 467 Listed for direct burial
C
C
B
B
DB
conductor range (cu)
nominal rod size (in)
ips pipe size
dimensions (in.)
Cat. No.*
max.
min.
max.
min.
max.
min.
A
B
C
GUV584
GUV5821
GUV5825
GUV784
GUV7821
GUV7825
GUV1184
GUV11821
GUV1384
GUV13821
GUV13825
GUV1584
GUV15821
GUV15825
GUV204
GUV2021
GUV2025
GUV21221
GUV21225
GUV3021
GUV3025
GUV31221
GUV4021
GUV4025
4
2/0
250
4
2/0
250
4
2/0
4
2/0
250
4
2/0
250
4
2/0
250
2/0
250
2/0
250
2/0
2/0
250
8
4
2/0
8
4
2/0
8
4
8
4
2/0
8
4
2/0
8
4
2/0
4
2/0
4
2/0
4
4
2/0
⁄4
3
⁄4
3
⁄4
1
1
1
11⁄4
11⁄4
11⁄2
11⁄2
11⁄2
17⁄8
17⁄8
17⁄8
23⁄8
23⁄8
23⁄8
27⁄8
27⁄8
31⁄2
31⁄2
4
41⁄2
41⁄2
⁄8
5
⁄8
5
⁄8
7
⁄8
7
⁄8
7
⁄8
11⁄8
11⁄8
13⁄8
13⁄8
13⁄8
15⁄8
15⁄8
15⁄8
2
2
2
21⁄2
21⁄2
3
3
31⁄2
4
4
⁄8
3
⁄8
3
⁄8
3
⁄4
3
⁄4
3
⁄4
1
1
11⁄4
11⁄4
11⁄4
11⁄2
11⁄2
11⁄2
2
2
2
21⁄2
21⁄2
3
3
31⁄2
4
4
—
—
—
1
⁄2
1
⁄2
1
⁄2
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
213⁄16
213⁄16
213⁄16
23⁄4
23⁄4
23⁄4
35⁄16
35⁄16
37⁄16
37⁄16
37⁄16
315⁄16
315⁄16
315⁄16
47⁄16
47⁄16
47⁄16
415⁄16
415⁄16
59⁄16
59⁄16
61⁄16
65⁄16
65⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
19⁄16
21⁄4
21⁄4
21⁄4
25⁄8
25⁄8
25⁄8
23⁄4
23⁄4
215⁄16
215⁄16
215⁄16
33⁄16
33⁄16
33⁄16
311⁄16
311⁄16
311⁄16
43⁄16
43⁄16
413⁄16
413⁄16
51⁄2
511⁄16
511⁄16
5
3
3
Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
Excellent for connecting
multiple electrodes with
a single cable, such as
in substation grounding.
Type GUV — U-Bolt
Ground Clamps
* For tin plating, add suffix P to Cat. No. Contact factory for price and availability.
UL® does not list tin-plated bronze grounding devices.
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Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
Water Pipe Ground Clamps
Cat. No.
Ground Wire Size
2-TB
3-TB
4
5-TB
6
Water Pipe Size
#6, #4, #2
#6, #4, #2
#6, #4, #2
#6, #4, #2
#6, #4, #2
⁄2", 3⁄4", 1" or rebar 4-10
11⁄4", 11⁄2" or 2"
21⁄2", 3" or 31⁄2"
4", 41⁄2" or 5"
6"
1
Malleable iron. #6 – #2 AWG ground wire.
Water Pipe Ground Clamps
Cat. No.
Ground
Wire Size
Water
Pipe Size
Cat. No.
Ground
Wire Size
Water
Pipe Size
3902
3903
3904
3905-TB
3906-TB
3907
3908
3909-TB
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
1
⁄2"–1"
11⁄4"–2"
21⁄2"–31⁄2"
4"–5"
6"
8"
10"
12"
3902BU*
3903BU*
3904BU*
3905BU*
3906BU*
3907BU*
3908BU*
3909BU*
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
#4–4/0 AWG
1
⁄2"–1"
11⁄4"–2"
21⁄2"–31⁄2"
4"–5"
6"
8"
10"
12"
* UL Listed for direct burial
For connecting grounding
conductor to either steel
or copper pipe, rod or tubing.
B
A
Aluminum Water Pipe Clamp
Type AJ2
• For use with copper
or aluminum conductor
• Tin plated for corrosion resistance
C
B
A
Type AJ
C
conductor range
dimensions (in.)
Cat. No.
water pipe Size
max.
min.
A
B
AJ
AJ-2
AJ-2124
⁄2–1
11⁄2–2
21⁄2–4
1/0 Str.
250 kcmil
250 kcmil
#14 Sol.
#6
#6
21⁄2
37⁄8
59⁄16
21⁄4
33⁄4
65⁄16
1
C
steel clamp Screw
⁄8
7
⁄8
7
⁄8
⁄4–20
5
⁄16–18
3
⁄8–16
5
1
UL Listed for both copper and aluminum conductors to steel pipe and copper water tubing
32
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aluminum wire Screw
7
⁄16–20 slot
⁄16–20 socket
11
⁄16–20 socket
11
Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
Economically priced clamps.
Die-Cast Clamps
• Made of die-cast zinc alloy with zinc-plated screws
• Model BJA for use with armored cable
Cat. No.
BJ-1
BJA*
conductor range
water
pipe Size
max.
min.
⁄2"–1"
⁄2"–1"
#2 str.
#6 AWG
#10 sol.
#8 AWG
1
1
* Not UL Listed
Flexible copper strap makes
alignment easy.
Cast Bronze Clamps with Copper Strap
• For grounding rigid conduit systems
• Same features as “JP” clamp plus flexible copper strap
• Strap helps protect conduit system from water
system vibrations
• Furnished with zinc-plated screws
Cat. No.
JPS-12
JPS-34
JPS-1
conduit Size
conductor range
water
pipe Size
max.
min.
⁄2"–1"
1
⁄2"–1"
1
⁄2"–1"
#6 sol.
2/0 str.
3/0 str.
#10 sol.
#10 sol.
#10 sol.
⁄2"
3
⁄4"
1"
1
1
Add suffix C to Cat. No. to specify plating.
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33
Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
Connects copper ground wire
to water pipe or copper tubing.
Cast Bronze Ground Clamps
• High-strength, high-conductivity copper alloy
(over 80% copper)
• UL® 467 Listed for direct burial
DB
Cat. No.
JD
J2D
water pipe Size
conductor Range
⁄2"–1"
11⁄4"–2"
#2 str.–#10 str.
#2 str.–#10 str.
1
For connecting grounding
conductor to water pipe
or copper tube.
B
C
Type J — Cast Bronze
Ground Clamps
A
(MAX.)
• Cast of high-strength, highly
conductive copper alloy
• Screws plated for
corrosion resistance
• UL® Listed
conductor range
Cat. No.
J
J2BB
J2124
J6
34
dimensions (in.)
water pipe Size
max.
min.
A (max.)
b
⁄2"–1"
11⁄4"–2"
21⁄2"–4"
41⁄4"–6"
#2 str.
#2 str.
#4 str.
#4 str.
#10 sol.
#10 sol.
#10 sol.
#10 sol.
23⁄4
33⁄4
6
71⁄4
211⁄32
31⁄2
65⁄16
81⁄8
1
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c
⁄32
⁄16
1
1
23
13
B
Budget Price Cast
Bronze Clamp
A
(MAX.)
C
conductor range
Cat. No.
JJR
dimensions (in.)
water pipe Size
max.
min.
A
⁄2"–1"
#4 Str.
#10 Sol.
215⁄32
1
b
c
⁄32
25
⁄32
17
Add suffix C to Cat. No. to specify plating.
Lay-in feature reduces installation
time for difficult bends or continuous
loops of ground wire.
Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
Similar to aluminum
water pipe clamp
but lighter in
construction.
Type JDLI — Direct-Burial Ground Clamp
• UL® Listed for direct burial in earth/concrete
• UL® Listed for connection to ground rod, pipe or rebar up to 1"
• Constructed from bronze alloy and high performance stainless
steel bolts
• Designed for easy installation of difficult bends or continuous loops
DB
CAT. NO.
JDLI
pipe SIZE
⁄2"–1"
1
rebar SIZE
⁄8"–1"
3
www.tnb.com
ground rod SIZE
conductor RANGE
mech. conn./SPLICE (UL LISTED)
⁄4"–1"
#10 Sol.–#2 Str.
(2) #8 Sol.
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Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
For connecting
armored cable
to water pipe.
D
G
A
(MAX.)
Cast Bronze Clamp
• Clamping portion similar
to standard “J” clamp
• Special pressure bar grips
armor or outer cable insulation
to reduce chance of grounding
conductor being pulled out
• Furnished with zinc-plated screws
B
conductor range
dimensions (in.)
Cat. No.
water pipe Size
max.
min.
a
b
JA
JA-2
JA-2124
⁄2"–1"
11⁄4"–2"
21⁄2"–4"
#6 sol.
#6 sol.
#6 sol.
#10 sol.
#10 sol.
#10 sol.
23⁄4
33⁄4
6
211⁄32
31⁄2
65⁄16
1
C
c
d
⁄32
13
⁄16
1
29⁄32
29⁄32
29⁄32
25
e
g
⁄32
15
⁄32
15
⁄32
13⁄8
13⁄8
13⁄8
15
Add suffix C to Cat. No. to specify plating.
For grounding rigid
conduit systems.
G
E
D
Cast Bronze Clamps for Conduit
• Continuity from rigid conduit system to
ground provided by cast bronze threaded
conduit hub
• Hub swings 360° for easy alignment
• Heavy brass washer protects
clamped grounding conductor
• Furnished with zinc-plated screws
• Cast bronze pipe clamping portion
identical to that used in “JA” clamp
A
B
conductor range
Cat. No.
JP-12
JP-212
JP-212412
JP-34
JP-234
JP-212434
JP-1
JP-21
JP-21241
dimensions (in.)
conduit Size
water pipe Size
max.
min.
a
b
⁄2
1
⁄2
1
⁄2
3
⁄4
3
⁄4
3
⁄4
1
1
1
⁄2"–1"
11⁄4"–2"
21⁄2"–4"
1
⁄2"–1"
11⁄4"–2"
21⁄2"–4"
1
⁄2"–1"
11⁄4"–2"
21⁄2"–4"
#6 sol.
#6 sol.
#6 sol.
#2/0 str.
#2/0 str.
#2/0 str.
#3/0 str.
#3/0 str.
#3/0 str.
#10 sol.
#10 sol.
#10 sol.
#10 sol.
#10 sol.
#10 sol.
#10 sol.
#10 sol.
#10 sol.
23⁄4
33⁄4
6
23⁄4
33⁄4
6
23⁄4
33⁄4
6
211⁄32
31⁄2
65⁄16
211⁄32
31⁄2
65⁄16
211⁄32
31⁄2
65⁄16
1
1
C
c
d
e
g
⁄32
13
⁄16
1
23
⁄32
13
⁄16
1
23
⁄32
13
⁄16
1
19⁄64
19⁄64
19⁄64
25⁄16
25⁄16
25⁄16
25⁄16
25⁄16
25⁄16
1
1
1
11⁄4
11⁄4
11⁄4
11⁄2
11⁄2
11⁄2
21⁄2
21⁄2
21⁄2
23⁄16
23⁄16
23⁄16
23⁄8
23⁄8
23⁄8
23
Add suffix C to Cat. No. to specify plating.
36
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Ground Clamps
Connectors & Grounding — Blackburn® Grounding Systems
Hub swings 360° for ease of alignment.
Type JPT — Cast Bronze Clamps for Conduit
• Pipe clamping portion identical to “JA” clamp
• Pressure-bar type conduit hub adjusts to fit 1⁄2" or 3⁄4" EMT
or 1⁄2" rigid conduit
• Brass washer provides positive contact with grounding conductor
• Furnished with zinc-plated screws
Conductor Range
Cat. No.
JPT
JPT2
JPT4
Conduit Size
Pipe Size
max.
min.
⁄2" or 3⁄4" EMT
1
⁄2" Rigid
⁄2" to 1"
11⁄4" to 2"
21⁄2" to 4"
#6 Sol.
#10 Sol.
1
1
Conduit Hubs
Cat. No.
Ground Wire Size AWG
Conduit Size
#8 to #2
#8 to #2
#8 to 3/0
#8 to 4/0
⁄2" Conduit
⁄4" Conduit
1" Conduit
11⁄4" Conduit
3930
3940
3950
3951
1
3
Material: Malleable iron
Provides positive connection between
rigid conduit and water system.
Type CH — Bronze Conduit Hubs
• Used in conjunction with “J” clamp
• Rugged cast-bronze threaded hub
Conductor Range
Cat. No.
CH12
CH34
CH1BB
Conduit Size (in.)
max.
min.
⁄2
3
⁄4
1
#6 Sol.
2/0 Str.
3/0 Str.
#10 Sol.
#10 Sol.
#10 Sol.
1
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37
Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
Ground Clamp
†
Cat. No.
Material
Water Pipe,
Copper Tubing Size
3826†
3846†
3849•
3840-TB*
M.I.
Bronze
Brass
M.I.
⁄2", 3⁄4"
⁄2", 3⁄4"
1
⁄2"–1" O.D.
1
⁄2", 3⁄4" or 1"
Grd.
Rod Size
⁄2"–1"
⁄2"–1"
1
1
1
1
3849
3826
For unarmored copper wire #6, #4.
• For copper and aluminum conductors; for 14 thru 2 cu. unarmored copper wire —
corrosive and outdoor use. UL® approved for direct burial.
* #8 thru #4 AWG. Not CSA Certified.
3840-TB
Ground Clamps for K&L
Grade Copper Tubing Only
Cat. No.
Water Pipe &
Ground Rod Size/
Desc.
Ground Wire Range
3844*
3888†
961
962**
963**
#8–#4
#8–#4
#8
#8
#8
Cat. No.
31215
31216
31253
31217
31224
31230
1
⁄2"–1"
⁄2"–1" also rebar 4–10
3
⁄8"–1"
3
⁄8"–2"
3
⁄8"–3"
1
Description/Cable Size
Strain-Relief Grounding Lug, #6–#2
Grounding Clamp, 1" Hook-Type, #6–#2
Grounding Clamp, 1-1⁄2" Hook-Type, #6–#2
Ground Clamp, 1" Straight-Type, #6–#2
Grounding Clamp, 1-1⁄2" Straight-Type, #6–#2
Wing Screw only
* With steel screws.
** With bronze screws, not CSA Certified — or UL® Listed.
†
3844
For armored and
unarmored wire
31215
Disconnect static ground clamp
and lug, straight-type (cable not
supplied), UL not applicable
UL® approved for direct burial. Silicon bronze screws.
Cable Tray Ground Clamp
Material: Malleable iron
Standard Finish: Zinc plated
Cat. No.
Description
10105*
10109**
For Single Conductors #4 sol. to 2/0 str.
For Single Conductors 2/0 sol. to 4/0 str.
* UL® Listed #4 to 2/0 AWG copper.
** UL® Listed 2/0 to 4/0 AWG copper/aluminum.
CSA File No. 2884.
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961
For radio, motor frame and
equipment grounding
Connectors & Grounding — Blackburn® Grounding Systems
Ground Clamps
For aluminum and steel cable trays
with regular or reinforced flanges.
Tray Clamps
• Serrations and biting teeth on clamping saddle provide
a high-quality bond between conduit and clamp
• Can be clamped to any position in a 90° arc
• Hardened steel screws bite into tray and provide positive bond
• Malleable iron hub and steel U-bolt accept conduit from any angle
Cat. No.
6209
6210
6211
6212
6214
6216
6218
Clamp Type
Conduit Size
Swivel
Straight
Swivel
Straight
Swivel
Swivel
Swivel
⁄2"–3⁄4"
⁄2"–3⁄4"
1"–11⁄4"
1"–11⁄4"
11⁄2"–2"
21⁄2"–3"
31⁄2"–4"
1
1
Efficiently grounds trailer frames, cable
trays, CATV and telephone pedestals.
Beam Grounding Clamp
• Connects #6 to #14 solid copper conductor to metal frames
where continuity of grounding can be assured
• 7⁄16" silicon bronze hex-head bolt installs with cam-wrench,
socket or crescent wrench
• Tin-plated square-head bolt enables installation with pliers
when tighter ground connection is needed
• Ground wire hole access from four directions minimizes need
to bend ground wire
• Designed so ground wire may be installed on clamp prior
to mounting clamp on metal frame, reducing installation time
• Beam and ground wire connection can be tightened separately
with disconnecting integrity of ground circuit
• High-strength copper alloy (91% nom.) provides greater
conductivity, durability and corrosion resistance without
the need for plating
• High-strength anchoring bolt penetrates paint or metal oxide
Cat. No.
TGC
Description
Conductor Size (AWG)
Square-Head Tin-Plated Steel Bolt
#6 to #14 sol.
Listed to UL® 467
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Index
Catalog Number Index
40
Cat. No.
PAGE NO.
10102-TB...................... 27
10103-TB...................... 27
10105........................... 38
10109........................... 38
1016BTB....................... 23
1016TB.......................... 23
15506........................... 17
15534........................... 17
2-TB.............................. 32
3-TB.............................. 32
31215........................... 38
31216........................... 38
31217........................... 38
31224........................... 38
31230........................... 38
31253........................... 38
3826............................. 38
3840-TB........................ 38
3844............................. 38
3846............................. 38
3849............................. 38
3888............................. 38
3900............................. 21
3900BP......................... 21
3902............................. 32
3902BU......................... 32
3903............................. 32
3903BU......................... 32
3904............................. 32
3904BU......................... 32
3905-TB........................ 32
3905BU......................... 32
3906-TB........................ 32
3906BU......................... 32
3907............................. 32
3907BU......................... 32
3908............................. 32
3908BU......................... 32
3909-TB........................ 32
3909BU......................... 32
3930............................. 37
3940............................. 37
3950............................. 37
3951............................. 37
4................................... 32
5-TB.............................. 32
50C............................... 22
50DS............................. 22
50LC.............................. 22
50LCNT......................... 23
50LDS........................... 22
51628........................... 22
51629........................... 22
53055........................... 11
53055FL........................ 17
53059........................... 11
53060........................... 11
53065-34GR.................. 10
53065-58GR.................. 10
53065........................... 11
53065FL........................ 17
53069........................... 11
53071........................... 11
53073........................... 11
53075........................... 11
53080........................... 11
53504........................... 16
53505........................... 16
53506........................... 16
53507........................... 16
53508........................... 16
53509........................... 16
53510........................... 16
53511........................... 16
Cat. No.
PAGE NO.
53512........................... 16
53513........................... 16
53515........................... 16
53518........................... 16
53523........................... 16
54855............................. 6
54855L............................ 7
54855LR12...................... 7
54860............................. 6
54865-CK........................ 6
54865L............................ 7
54865LR58...................... 7
54875............................. 6
54875L............................ 7
54875LR34...................... 7
54885............................. 6
54885L............................ 7
54885LR12...................... 7
54890............................. 6
54895............................. 6
54895L............................ 7
54895LR58...................... 7
54900............................. 6
54900L............................ 7
54900LR34...................... 7
54910LR100.................... 7
54920LR100.................... 7
6................................... 32
60C............................... 22
60CNT2......................... 23
60DS............................. 22
60DSNT......................... 23
6209............................. 39
6210............................. 39
6211............................. 39
6212............................. 39
6214............................. 39
6216............................. 39
6218............................. 39
70C............................... 22
70CNT........................... 23
70DS............................. 22
80C............................... 22
80DS............................. 22
961............................... 38
962............................... 38
963............................... 38
AJ.................................. 32
AJ-2.............................. 32
AJ-2124........................ 32
BC202........................... 12
BC2020-BB.................... 12
BC22............................. 12
BC24............................. 12
BC402........................... 12
BC4020......................... 12
BC4040......................... 12
BC44............................. 12
BC46-BB........................ 12
BC48............................. 12
BJ-1.............................. 33
BJA................................ 33
CC 202.......................... 13
CC 2020........................ 13
CC 22............................ 13
CC 24............................ 13
CC 402.......................... 13
CC 4020........................ 13
CC 4040........................ 13
CC 44............................ 13
CC 46............................ 13
CC 48............................ 13
CC10C-56R.................... 17
CC1C-45R...................... 17
Cat. No.
PAGE NO.
CC20C-56R.................... 17
CC2C-45R...................... 17
CC40C-56R.................... 17
CH12............................. 37
CH1BB........................... 37
CH34............................. 37
CTG250......................... 28
CTP202......................... 12
CTP2020....................... 12
CTP22........................... 12
CTP25020..................... 12
CTP250250................... 12
CTP50020..................... 12
CTP500250................... 12
CTP500500 .................. 12
CULL414........................ 29
CULL414-TP.................. 29
DGC58-44..................... 27
DGC58-46..................... 27
DGC58-66..................... 27
FG2040R2..................... 18
FG2040R25................... 18
FG2040R3..................... 18
FG210R2....................... 18
FG210R25..................... 18
FG210R3....................... 18
G3................................. 26
G4................................. 26
G5................................. 26
G6................................. 26
GBBC22......................... 18
GBBC26......................... 18
GFL10-20...................... 20
GFL2-1.......................... 20
GFL350.......................... 20
GFL40-250.................... 20
GFL5001........................ 20
GFL7501, 2.................... 20
GG10-10.......................... 8
GG12............................. 26
GG12H........................... 26
GG2030-10...................... 8
GG2030-2030.................. 8
GG2030-21...................... 8
GG21-21.......................... 8
GG34H........................... 26
GG350-350...................... 8
GG40250-10.................... 8
GG40250-2030................ 8
GG40250-21.................... 8
GG40250-40250.............. 8
GG500-2030.................... 8
GG500-350...................... 8
GG500-40250.................. 8
GG500-500...................... 8
GG58............................. 26
GG58H........................... 26
GP100........................... 24
GP1003......................... 24
GP1008......................... 24
GP110........................... 24
GP1108......................... 24
GP114........................... 24
GP2250-2...................... 14
GP2250-4...................... 14
GP250500-2.................. 14
GP250500-4.................. 14
GR1-202.......................... 6
GR1-300500.................... 6
GR1-40250...................... 6
GR12-202........................ 6
GR12-306...................... 13
GR12-40250.................... 6
GR34-202........................ 6
United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
Technical Services
Tel: 888.862.3289
Cat. No.
PAGE NO.
GR34-300500.................. 6
GR34-4010.................... 13
GR34-40250.................... 6
GR58-202........................ 6
GR58-300500.................. 6
GR58-40250.................... 6
GR58-406...................... 13
GRD2............................... 9
GRD20............................. 9
GRD40............................. 9
GRD420........................... 9
GTC13........................... 28
GTC14........................... 28
GTC23........................... 28
GTC24........................... 28
GUV11821..................... 31
GUV1184....................... 31
GUV13821..................... 31
GUV13825..................... 31
GUV1384....................... 31
GUV15821..................... 31
GUV15825..................... 31
GUV1584....................... 31
GUV2021....................... 31
GUV2025....................... 31
GUV204......................... 31
GUV21221..................... 31
GUV21225..................... 31
GUV3021....................... 31
GUV3025....................... 31
GUV31221..................... 31
GUV4021....................... 31
GUV4025....................... 31
GUV5821....................... 31
GUV5825....................... 31
GUV584......................... 31
GUV7821....................... 31
GUV7825....................... 31
GUV784......................... 31
IBG2-10......................... 16
IBG20-40....................... 16
IBG350-500................... 16
J.................................... 34
J2124............................ 34
J2BB.............................. 34
J2D................................ 34
J6.................................. 34
JA.................................. 36
JA-2.............................. 36
JA-2124........................ 36
JAB1.............................. 25
JAB12............................ 25
JAB12H......................... 25
JAB1H........................... 25
JAB34............................ 25
JAB34C......................... 25
JAB34H......................... 25
JAB58............................ 25
JAB58H......................... 25
JD.................................. 34
JDLI............................... 35
JJR................................ 35
JP-1.............................. 36
JP-12............................ 36
JP-21............................ 36
JP-212.......................... 36
JP-21241...................... 36
JP-212412.................... 36
JP-212434.................... 36
JP-234.......................... 36
JP-34............................ 36
JP126............................ 19
JP126G.......................... 19
JP146............................ 19
Cat. No.
PAGE NO.
JP2612G........................ 19
JP2614.......................... 19
JP2638.......................... 19
JP26516........................ 19
JP386............................ 19
JP5166.......................... 19
JP62.............................. 19
JP66.............................. 19
JPS-1............................ 33
JPS-12.......................... 33
JPS-34.......................... 33
JPT................................ 37
JPT2.............................. 37
JPT4.............................. 37
JWR............................... 25
LL1014.......................... 29
LL2506.......................... 29
LL306............................ 29
LL414............................ 29
PBGW............................ 24
PBH............................... 24
SP0Dl............................ 30
SP0DS........................... 30
SP0Sl............................. 30
SP0SS........................... 30
SP10Dl.......................... 30
SP10DS......................... 30
SP10Sl........................... 30
SP10SS......................... 30
SP1Dl............................ 30
SP1DS........................... 30
SP1Sl............................. 30
SP1SS........................... 30
SP2Dl............................ 30
SP2DS........................... 30
SP2Sl............................. 30
SP2SS........................... 30
SP3Dl............................ 30
SP3DS........................... 30
SP3Sl............................. 30
SP3SS........................... 30
SP4Dl............................ 30
SP4DS........................... 30
SP4Sl............................. 30
SP4SS........................... 30
SP5Dl............................ 30
SP5DS........................... 30
SP5Sl............................. 30
SP5SS........................... 30
SP6Dl............................ 30
SP6DS........................... 30
SP6Sl............................. 30
SP6SS........................... 30
SP8Dl............................ 30
SP8DS........................... 30
SP8Sl............................. 30
SP8SS........................... 30
SP9Dl............................ 30
SP9DS........................... 30
SP9Sl............................. 30
SP9SS........................... 30
SRG10-20...................... 21
SRG2-1.......................... 21
SRG30-40...................... 21
SRG8-4.......................... 21
TBGS-14........................ 15
TBGS-34........................ 15
TBGS-38........................ 15
TBGS-58........................ 15
TGC............................... 39
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