Matched our existing hardware and fit as expected. Clean install.
Maintenance · Retrofit work
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| Part Number | THJK436400 |
| Amperes | 400 |
| Poles | 3 |
| Voltage | 600 |
| Product Type | Circuit Breaker |
Seamless online shopping experience guaranteed with easy shipping and returns policy.
Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.
Meet the General Electric THJK436400 circuit breaker—a purpose-built protection device for demanding electrical systems. With a 400A rating, 3-pole configuration for true three-phase protection, and a 600V operating envelope, this unit is crafted for maintenance, retrofit, and replacement projects where exact specifications matter. Built to endure the rigors of commercial and industrial panel environments, it delivers reliable interruption protection when it’s most needed.
Ideal for upgrading aging protection in service panels, replacing worn-out breakers in 3-phase systems, or provisioning a spare that matches exact GE specifications. This unit fits in applications where a 400A, 3-pole, 600V circuit breaker is the appropriate safeguard for power distribution and motor-control circuits. When planning a retrofit or a replacement, aligning with the THJK436400 specifications helps minimize downtime and compatibility surprises.
Important: Confirm fit and ratings before ordering. The part number THJK436400 is the best reference for compatibility with your equipment.
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General feedback we often hear from customers purchasing industrial electrical parts.
Matched our existing hardware and fit as expected. Clean install.
Maintenance · Retrofit work
Quick confirmation on details and a smooth ordering process.
Purchasing · Fast turnaround
Came well packed. Labeling made receiving and staging easy.
Warehouse · Receiving