Dual-Rated Mechanical Connectors
Connectors & Grounding — Blackburn® Mechanical Connectors
Dual-Rated Mechanical Connectors Type GT — Aluminum Dual-Rated Mechanical Parallel Tap Connectors
Conductor Range (AL or CU)
Dimensions (in.)
Cat. No.
Main
Tap
W
L
H
GT-2* GT-0 GT-250-0 GT-250 GT-350 GT-500 GT-750
2–12 Str. 1/0–2 250–1/0 250–1/0 350–4/0 500–350 750–500
4–14 1/0–14 1/0–14 250–6 350–6 500–2 500–2
⁄8 3 ⁄4 11⁄16 11⁄16 11⁄4 13⁄8 11⁄2
13⁄8 13⁄4 29⁄32 29⁄32 29⁄16 31⁄8 33⁄8
⁄8 1 15⁄16 15⁄16 17⁄16 13⁄4 2
5
7
L W
H
* Slotted screw, tap side. To include insulating cover, add suffix WC.
Type TC — Insulating Covers for GP-GT
dimensions (in.)
Cat. No.
l
w
h
use with connector
TC-2 TC-10
21⁄8 21⁄2
13⁄4 213⁄32
11⁄16 11⁄4
TC250350
31⁄8
217⁄32
119⁄32
TC-500 TC-750
41⁄4 45⁄8
31⁄8 37⁄8
21⁄16 21⁄2
GP-2, GT-2 GP-0, GT-0 GP-250, GT-250, GP-350, GP-250-0, GT-250-0, GT-350 GP-500, GT-500 GP-750, GT-750
L
W
Color of all covers is black.
Tightening Torque Values for Aluminum Dual-Rated Socket Screw Connectors
F-180
AWG or Circular Mil Size
Screw Driver
Wrench
12 10 8 6 4 2 1 1/0 2/0 3/0
20 20 20 35 35 50 50 50 50 —
75 75 75 100 100 125 125 150 150 200
Tightening Torque in in.-lb.
United States Tel: 901.252.8000 800.816.7809 Fax: 901.252.1354
AWG or Circular Mil Size
Screw Driver
Wrench
4/0 250 350 500 600 700 750 800 1,000
— — — — — — — — —
200 250 250 300 300 300 300 400 400
Technical Services Tel: 888.862.3289
Tightening Torque in in.-lb.
www.tnb.com
Dual-Rated Mechanical Connectors Type GT — Aluminum Dual-Rated Mechanical Parallel Tap Connectors
Conductor Range (AL or CU)
Dimensions (in.)
Cat. No.
Main
Tap
W
L
H
GT-2* GT-0 GT-250-0 GT-250 GT-350 GT-500 GT-750
2–12 Str. 1/0–2 250–1/0 250–1/0 350–4/0 500–350 750–500
4–14 1/0–14 1/0–14 250–6 350–6 500–2 500–2
⁄8 3 ⁄4 11⁄16 11⁄16 11⁄4 13⁄8 11⁄2
13⁄8 13⁄4 29⁄32 29⁄32 29⁄16 31⁄8 33⁄8
⁄8 1 15⁄16 15⁄16 17⁄16 13⁄4 2
5
7
L W
H
* Slotted screw, tap side. To include insulating cover, add suffix WC.
Type TC — Insulating Covers for GP-GT
dimensions (in.)
Cat. No.
l
w
h
use with connector
TC-2 TC-10
21⁄8 21⁄2
13⁄4 213⁄32
11⁄16 11⁄4
TC250350
31⁄8
217⁄32
119⁄32
TC-500 TC-750
41⁄4 45⁄8
31⁄8 37⁄8
21⁄16 21⁄2
GP-2, GT-2 GP-0, GT-0 GP-250, GT-250, GP-350, GP-250-0, GT-250-0, GT-350 GP-500, GT-500 GP-750, GT-750
L
W
Color of all covers is black.
Tightening Torque Values for Aluminum Dual-Rated Socket Screw Connectors
F-180
AWG or Circular Mil Size
Screw Driver
Wrench
12 10 8 6 4 2 1 1/0 2/0 3/0
20 20 20 35 35 50 50 50 50 —
75 75 75 100 100 125 125 150 150 200
Tightening Torque in in.-lb.
United States Tel: 901.252.8000 800.816.7809 Fax: 901.252.1354
AWG or Circular Mil Size
Screw Driver
Wrench
4/0 250 350 500 600 700 750 800 1,000
— — — — — — — — —
200 250 250 300 300 300 300 400 400
Technical Services Tel: 888.862.3289
Tightening Torque in in.-lb.
www.tnb.com
