Travis Pattern & Foundry makes grounding clamps for round conductors, rails and structural angle. This guide covers the vice grip, rail and angle clamp families from the Travis catalog.
All vice grip clamps are bronze with a smooth jaw and a 1 in maximum main line. Minimum main line is 0.25 in. Continuous current rating is 400A.
| Part | Description | Fault rating | Lbs |
|---|---|---|---|
| GCVG1 | Round conductor, 1 hole pad | 43 kA @ 15 cycles symmetrical | 2 |
| GCVG1E | Round conductor, 1 hole pad, eye screw | 43 kA @ 15 cycles symmetrical | 2 |
| GCVG1-58T | Round conductor, 5/8-11 thread | 47 kA @ 15 cycles, X/R=30 | 2 |
| GCVG1E-58T | Round conductor, 5/8-11 thread, eye screw | 47 kA @ 15 cycles, X/R=30 | 2 |
| GCVG3-58T | Round conductor, side mount 5/8-11 | 47 kA @ 15 cycles, X/R=30 | 2 |
| GCVG3E-58T | Round conductor, side mount 5/8-11, eye screw | 47 kA @ 15 cycles, X/R=30 | 2 |
| GCVG2 | Flat jaw, 1 hole pad | 25 kA @ 15 cycles, X/R=30 | 2 |
| GCVG2E | Flat jaw, 1 hole pad, eye screw | 25 kA @ 15 cycles, X/R=30 | 2 |
| GCVG2-58T | Flat jaw, 5/8-11 thread | 25 kA @ 15 cycles, X/R=30 | 2 |
| GCVG2E-58T | Flat jaw, 5/8-11 thread, eye screw | 25 kA @ 15 cycles, X/R=30 | 2 |
Both are aluminum and cover 90 to 136 lb rail.
| Part | Description | Fault rating | Lbs |
|---|---|---|---|
| TP56RC90136 | 5 in to 6 in under rail clamp, smooth jaw, 90-136 lbs | 43 kA @ 15 cycles symmetrical | 5 |
| TP90136TRC | Top rail clamp, serrated jaw, 90 lb to 136 lb rail, with sliding T-handle | 47 kA @ 15 cycles, X/R=30 | 2 |
Smooth jaw, continuous current rating 400A.
| Part | Material | Size | Main line | Description | Fault rating | Lbs |
|---|---|---|---|---|---|---|
| TP3X3BAT-SR | Bronze | 3 in x 3 in | 1-1/2 in to 3 in | 3x3 bronze angle clamp with strain relief | 55 kA @ 15 cycles, X/R=30 | 3.8 |
| TP4X4BAAT15-SR | Bronze | 4 in x 4 in | 1-1/2 in to 4 in | Threaded 15 deg, with strain relief | 55 kA @ 15 cycles, X/R=30 | 5 |
| TP4X4BAAT15-GS47 | Bronze | 4 in x 4 in | 1-1/2 in to 4 in | Threaded 15 deg, ground stud 3/4x4x7 | 55 kA @ 15 cycles, X/R=30 | 6 |
| TP4X4BAAT15-BS15 | Bronze | 4 in x 4 in | 1-1/2 in to 4 in | Threaded 15 deg, ball stud | 55 kA @ 15 cycles, X/R=30 | 6 |
| TP3X3A-15GS | Aluminum | 3 in x 3 in | 1-1/2 in to 3 in | Flat/angle clamp with 1.5 in x 6 in stud | 68 kA @ 15 cycles, X/R=30 | 7.8 |
| TP4X4AAAT15-GS47 | Aluminum | 4 in x 4 in | 1-1/2 in to 4 in | Threaded 15 deg, ground stud 3/4x4x7 | 47 kA @ 15 cycles, X/R=30 | 3.3 |
| TP4X4AA-BS17-T | Aluminum | 4 in x 4 in | 1-1/2 in to 4 in | Ball stud 1 in x 7 in | 47 kA @ 15 cycles, X/R=3 | 3.45 |
| TP6X6A-15GS | Aluminum | 6 in x 6 in | 3 in to 6 in | Flat/angle clamp with 1.5 in x 6 in stud | 68 kA @ 15 cycles, X/R=30 | 9 |
View the Vice Grip, Rail and Angle clamp categories in the Powertech store, or contact Powertech Associates.
Last updated: November 2026.
