General Electric | TJJ436400 | Circuit Breaker | 400A | 3-Pole | 600V

Meet the General Electric TJJ436400 circuit breaker—the dependable 400A, 3-pole device designed to protect 600V electrical feeds in demanding industrial and commercial panels. Built for maintenance, retrofit, and replacement projects, it delivers solid, balanced protection when three-phase power is a factor and reliability is non-negotiable.

• Exact specifications you can trust: 400A, 3-Pole, 600V operation
• Part number clarity: TJJ436400 is the definitive reference for compatibility and replacement accuracy
• GE engineering and support: Engineered for use in GE-based panels and systems, with long-standing industry acceptance
• Ideal for upgrades and replacements: Perfect for maintenance, retrofit, and replacement scenarios where precise ratings matter

This breaker is suited for three-phase circuits that demand robust protection at high voltage. By matching the correct amperage, pole configuration, and voltage rating, you ensure smoother operation of motors, feeders, and other heavy-load components without sacrificing safety or performance.

• Use cases: Replacing worn or outdated breakers in industrial control panels; retrofitting panels to support 400A, 3-pole 600V service; renewing protective devices in facilities with 3-phase distribution
• Who benefits: Facility engineers, panel assemblers, and maintenance teams responsible for reliable power distribution in manufacturing, processing, or large commercial environments
• Why it matters: Exact part identification (TJJ436400) minimizes compatibility risk, reducing downtime from mismatched replacements

Important compatibility notes to ensure a successful fit: confirm the breaker’s amperage, pole count, and voltage align with your panel’s requirements before ordering. Use the part number TJJ436400 as the primary reference to verify compatibility with your GE-based panels and feeders.

• Practical installation considerations: Ensure the system is de-energized before replacement, and verify that the panel accepts a 3-pole 400A, 600V device. If in doubt, consult a licensed electrician or your panel manufacturer’s guidelines.
• On-hand readiness: Keep the TJJ436400 part number handy as the quickest path to a correct, compatible replacement
• Maintenance mindset: Regularly inspect connections and mounting hardware during replacements to maintain reliable long-term protection