Installation Guide
www.tnb.com
United States
Tel: 901.252.8000
800.816.7809
Fax: 901.252.1354
Technical Services
Tel: 888.862.3289
F-160
Two-Bolt Connectors
Connectors & Grounding — Blackburn
®
Mechanical Connectors
Cat. No.
CoNduCtor raNge (aWg or kCmil)
CoNduCtor
diameter (B)
Bolt
Head
dimeNsioNs (iN.)maiN tap
max. miN. max. miN. max. miN. l H d
2B10 1/0 Str. 2 Str. 1/0 Str. 10 Sol. .746 .394
1
⁄2 1
5
⁄16 1
3
⁄4
5
⁄16
2B20BB 2/0 Str. 2 Str. 2/0 Str. 8 Sol. .838 .420
1
⁄2 1
5
⁄16 1
1
⁄4
5
⁄16
2B40 4/0 Str. 1/0 Str. 4/0 Str. 6 Sol. 1.056 .530
9
⁄16 1
23
⁄32 1
3
⁄4
3
⁄8
2B350 350 kcmil 4/0 Str. 350 kcmil 4 Sol. 1.362 .726
3
⁄4 2
1
⁄8 2
1
⁄2
2B500 500 kcmil 350 kcmil 500 kcmil 4 Sol. 1.626 .883
3
⁄4 2
1
⁄4 2
1
⁄2
1
⁄2
2B800 800 kcmil 600 kcmil 800 kcmil 2 Sol. 2.062 1.149
3
⁄4 2
1
⁄2 2
1
⁄2
1
⁄2
2B1000 1000 kcmil 750 kcmil 1000 kcmil 2 Sol. 2.304 1.255
15
⁄16 2
31
⁄32 2
3
⁄4
5
⁄8
UL 486A
• Single-piece construction
• Castings and bolts of high-strength copper alloy
• Neoprene washer holds free bolt in place during installation
• UL
®
486A Listed for copper conductor only
Neoprene washers capture bolts
in bottom casting for easy installation.
Extra-long bolt enables top casting
to swing free over two conductors
of maximum range.
Type 2BX — One-Piece Two-Bolt
Connector without Spacer
• Castings and bolts of high-strength copper alloy
• Removable cap
• UL
®
486A Listed for copper conductor only
Type 2B — Two-Bolt Connector
without Spacer
Cat. No.
CoNduCtor raNge (aWg or kCmil)
CoNduCtor
diameter (B)
Bolt
Head
dimeNsioNs (iN.)maiN tap
max. miN. max. miN. max. miN. l H d
2B10x 1/0 Str. 2 Str. 1/0 Str. 10 Sol. .746 .394
1
⁄2 1
5
⁄16 1
1
⁄2
5
⁄16
2B20x 2/0 Str. 2 Str. 2/0 Str. 8 Sol. .838 .420
1
⁄2 1
5
⁄16 1
1
⁄2
5
⁄16
2B40x 4/0 Str. 1/0 Str. 4/0 Str. 6 Sol. 1.056 .530
9
⁄16 1
23
⁄32 1
7
⁄8
3
⁄8
2B350x 350 kcmil 4/0 Str. 350 kcmil 4 Sol. 1.362 .726
3
⁄4 2
1
⁄8 2
1
⁄4
1
⁄2
2B500x 500 kcmil 350 kcmil 500 kcmil 4 Sol. 1.626 .883
3
⁄4 2
1
⁄4 2
1
⁄2
1
⁄2
2B800x 800 kcmil 600 kcmil 800 kcmil 2 Sol. 2.062 1.149
3
⁄4 2
1
⁄2 2
3
⁄4
1
⁄2
2B1000x 1000 kcmil 750 kcmil 1000 kcmil 2 Sol. 2.304 1.255
15
⁄16 2
31
⁄32 3
1
⁄4
5
⁄8
UL 486A
L
H
A
B
L
B
H
D