General Electric | TJK426Y400WL | Circuit Breaker | 400A | 2-Pole | 600V

Introducing the General Electric TJK426Y400WL Circuit Breaker—a rugged, purpose-built protection device engineered for demanding electrical environments. With a 400-amp rating and a 2-pole configuration, this breaker delivers dependable, synchronized interruption across two hot legs in 600V systems. Ideal for maintenance, retrofit, and replacement projects where precise specifications matter, it’s designed to slot into compatible GE panels and systems that require exact matching ratings.

Key specifications

• Amperage: 400A
• Poles: 2-Pole
• Voltage: 600V
• Part number: TJK426Y400WL
• Brand: General Electric

Compatibility note: Confirm fit and ratings before ordering. The part number TJK426Y400WL is the most reliable reference for ensuring compatibility with your panel and electrical system.

Why this GE circuit breaker stands out

• Precise match for high-demand circuits: 400A capacity provides robust protection for heavy-load panels and main distribution paths.
• Two-pole protection: Simultaneously interrupts both conductors, minimizing the risk of residual current in multi-wire circuits.
• 600V capability: Designed to safely interrupt and protect 600V systems commonly found in commercial and industrial settings.
• Clear identification for maintenance: The exact part number (TJK426Y400WL) reduces guesswork during replacements and stock checks.

Ideal use cases

• Maintenance and preventative service on existing GE panels requiring a like-for-like 400A, 2-pole 600V breaker.
• Retrofit projects where upgrading to higher-current protection is needed without changing the panel architecture.
• Replacement in aging or failing circuits that demand precise specifications to maintain electrical code compliance.

Practical tips for optimal results

• Before ordering, verify that your panel’s bus design and manufacturer compatibility align with GE part numbers and 600V, 2-pole configurations.
• Keep the TJK426Y400WL part number handy as the primary reference when cross-checking with schematics, labeling, and purchase orders.
• Consult your electrical documentation to ensure the 400A rating matches the protected circuit load and that your installation adheres to local electrical codes.