GE / ABB THJK PowerBreak II 600V Circuit Breakers
The GE THJK PowerBreak II series combines 600V rating with 65kAIC interrupting capacity for demanding industrial applications. Part of the PowerBreak II family with bolt-on mounting for GE and ABB industrial switchgear.
Series Specifications
| Frame | Industrial Bolt-On PowerBreak II — 1200A Frame |
|---|---|
| Amperage Range | 15A - 1200A |
| Voltage | 240/480/600VAC |
| Poles | 3-Pole |
| Interrupting Rating | 65kA @ 480V |
| Mounting | Bolt-On |
| Trip Type | Thermal-Magnetic |
History and Replacement Context
The THJK series is part of GE's PowerBreak II family for 600V industrial applications requiring high interrupting capacity. Now manufactured by ABB following the GE Industrial Solutions acquisition.
Typical Applications
- Industrial branch circuits
- High fault current applications
- 600V equipment
- Manufacturing
Available Catalog Numbers
- THJK436125 — 125A, 3 pole, 600VAC
- THJK436150 — 150A, 3 pole, 600VAC
- THJK436175 — 175A, 3 pole, 600VAC
- THJK436200 — 200A, 3 pole, 600VAC
- THJK436225 — 225A, 3 pole, 600VAC
- THJK436250 — 250A, 3 pole, 600VAC
- THJK436300 — 300A, 3 pole, 600VAC
- THJK436350 — 350A, 3 pole, 600VAC
- THJK436400 — 400A, 3 pole, 600VAC
- THJK636250 — 250A, 3 pole, 600VAC
- THJK636300 — 300A, 3 pole, 600VAC
- THJK636350 — 350A, 3 pole, 600VAC
- THJK636400 — 400A, 3 pole, 600VAC
- THJK636450 — 450A, 3 pole, 600VAC
- THJK636500 — 500A, 3 pole, 600VAC
- THJK636600 — 600A, 3 pole, 600VAC