General Electric THJK436400 Circuit Breaker 400A Max 3P 600V 300A TRIP

General Electric THJK436400 Circuit Breaker is a robust three-pole protection device designed for reliable electrical distribution in industrial, commercial, and demanding residential environments. With a 400 A maximum current rating and a 300 A magnetic trip, it delivers swift and dependable fault interruption for three-phase feeders at voltages up to 600 V. Whether you’re upgrading a panel, retrofitting an existing installation, or stocking spare parts for maintenance, this GE breaker is a trusted choice for electricians, panel builders, and MRO teams who need dependable protection that minimizes downtime on critical projects. Why the THJK436400 stands out:

• Three-pole configuration provides comprehensive three-phase protection for high-load circuits
• 600 V rating suits a wide range of commercial and industrial applications
• 400 A maximum continuous current with a 300 A magnetic trip for fast fault clearance
• Engineered for reliable operation in demanding environments, delivering consistent performance
• Designed for straightforward integration with GE panels and many standard enclosures

Ideal use cases:

• Panel upgrades and expansions in facilities with heavy electrical loads
• Retrofit projects replacing aging breakers for improved protection
• Maintenance replacements to keep systems running with minimal downtime
• Stock spare for MRO teams managing high-current distribution

Specifications at a glance:

• Configuration: 3-pole (3P)
• Amperage rating: 400 A (continuous)
• Trip rating: 300 A magnetic trip
• Voltage rating: 600 V
• Catalog designation: THJK436400 (436400 circuit)

For best results, verify compatibility with your panel’s bus connection and follow standard electrical practices during installation. The General Electric THJK436400 delivers the trusted protection you need for demanding power systems and time-sensitive service work.