GE TJK436400 - 400 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the GE TJK436400, a rugged 400 A, 600 V, 3-pole molded case circuit breaker designed to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for demanding environments, this device combines robust construction with precise, repeatable protection to keep electrical systems safe and running smoothly.

• Thermal-magnetic trip unit delivers stable, repeatable protection across varying temperatures and load conditions, providing reliable overload and rapid short-circuit response when it matters most.
• Compact molded case design makes efficient use of limited panel space, helping you maximize capacity without expanding the enclosure footprint.
• 3-pole configuration ideal for three-phase systems, ensuring all phase conductors are simultaneously protected in commercial and light industrial applications.
• 400 A rating provides a strong, continuous current path for heavy-load circuits while maintaining safe interruption capabilities.
• 600 V voltage rating suitable for a wide range of residential, commercial, and light industrial electrical distributions.
• OEM loadcenter compatibility guaranteed with matching GE panelboards and loadcenters, simplifying replacement and maintenance.

This breaker is purpose-built for branch circuit overcurrent and short-circuit protection in real-world panel installations. It’s particularly well-suited for main distribution panels, feeders powering motors, HVAC equipment, and other commercial or light industrial loads where space is at a premium and reliable protection is critical.

Why choose the GE TJK436400 over other options? It pairs a thermally tuned trip curve with a rugged molded case, delivering consistent performance across temperature swings and voltage variations. The 3-pole design protects all phases in three-phase systems, reducing the risk of uneven loading and tripped circuits that can disrupt operations. If you’re upgrading or replacing a circuit breaker in a GE-compatible panel, this unit’s exact fit and electrical characteristics help ensure seamless wiring, accurate trip settings, and straightforward maintenance.

Practical considerations and tips:

• Ensure your panelboard or loadcenter is a compatible OEM GE model for a trouble-free replacement.
• Verify the system is operating within the 600 V rating and that the 400 A rating aligns with the protected circuit’s amperage and load requirements.
• Arrange installation with proper torque on terminals and adherence to local electrical codes to maintain performance and safety.
• Use this breaker for new installations or replacements in residential, commercial, and light industrial settings where reliable, long-term protection is essential.

With GE’s legacy of reliability and this unit’s precise thermomagnetic protection, you can trust it to guard valuable equipment and keep electrical systems safe, compliant, and efficient. AmpState offers the GE TJK436400 as a ready-to-install solution for your 3-pole, 400 A, 600 V needs.