General Electric | THJK426400LL | Circuit Breaker | 400A | 2-Pole | 600V | Bolt-On

General Electric THJK426400LL circuit breaker is a 400A, 2-pole, 600V bolt-on unit designed for reliable protection in demanding electrical panels. Built for maintenance, retrofit, and replacement projects where exact specifications matter, this GE breaker ensures compatibility with systems that require a bolt-on mounting and robust 2-pole protection.

Key specs at a glance

• Amperage: 400A
• Poles: 2-Pole
• Voltage rating: 600V
• Mounting: Bolt-On
• Part number: THJK426400LL

Why this GE circuit breaker stands out

• Exact spec match for GE panels requiring a bolt-on, 2-pole device, making it ideal for retrofit projects where the panel's current protection and wiring configuration must stay consistent with the existing system.
• Designed for commercial and industrial environments where a 600V distribution circuit needs solid, reliable protection without compromising on installation simplicity.
• Using the part number THJK426400LL as the primary compatibility reference helps ensure you’re selecting the right component for your GE equipment.

Concrete use cases

• Maintenance and replacement on GE electrical panels that specify bolt-on 2-pole breakers
• Retrofit of older installations transitioning to higher current or updated protection schemes within 600V systems
• Upgrading or repairing large-load circuits in commercial/industrial setups that demand 400A protection

Installation and compatibility tips

• Before ordering, confirm fit and ratings by cross-referencing the panel model and the THJK426400LL part number.
• Keep in mind bolt-on mounting requires the appropriate panel opening and mounting pattern compatible with GE bolt-on breakers.
• Consider performing electrical work with the power fully isolated and by qualified personnel to ensure safe, compliant installation.