Operating Guide

United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
www.tnb.comwww.tnb.com
United States
Tel: [phone]
800.816.7809
Fax: [phone]
Technical Services
Tel: [phone]
34
Connectors & Grounding — Blackburn
®
Grounding Systems
Ground Clamps
CAT. NO. WATER PIPE SIZE CONDUCTOR RANGE
JD
1
⁄2"–1" #2 str.–#10 str.
J2D 1
1
⁄4"–2" #2 str.–#10 str.
CAT. NO. WATER PIPE SIZE
CONDUCTOR RANGE DIMENSIONS (IN.)
MAX. MIN. A (MAX.) B C
J
1
⁄2"–1" #2 str. #10 sol. 2
3
⁄4 2
11
⁄32
23
⁄32
J2BB 1
1
⁄4"–2" #2 str. #10 sol. 3
3
⁄4 3
1
⁄2
13
⁄16
J2124 2
1
⁄2"–4" #4 str. #10 sol. 6 6
5
⁄16 1
J6 4
1
⁄4"–6" #4 str. #10 sol. 7
1
⁄4 8
1
⁄8 1
C
B
A
(MAX.)
DB
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
For connecting grounding
conductor to water pipe
or copper tube.
Type J — Cast Bronze
Ground Clamps
• Cast of high-strength, highly
conductive copper alloy
• Screws plated for
corrosion resistance
• UL
®
Listed
1211_1836_TNB_TNB_Power Connection & Control Cat31_r7.indd 34 2/24/14 3:27 PM