Industrial HJL631400 400A 3-Pole 600 V Circuit Breaker

Meet the Industrial HJL631400 400A 3-Pole 600 V Circuit Breaker—a rugged, reliability-forward solution for demanding power distributions. Designed for 3‑phase systems, this unit delivers a 400 A current rating and supports up to 600 V, making it an ideal protector for feeders, motor circuits, and industrial panels in manufacturing environments.

Key specifications

• Part Number: HJL631400
• Current rating: 400 A
• Poles: 3
• Voltage rating: up to 600 V

Ideal applications

• Main protection for industrial power distribution panels and switchgear in factories and plants
• Protection for large three‑phase motors, conveyors, and heavy machinery
• Replacement in systems that specify a 400 A, 3‑pole, 600 V circuit breaker

What sets it apart

The HJL631400 is purpose-built for environments that demand dependable, straightforward protection. Its 3‑pole configuration ensures balanced protection across all phases of a three‑phase system, reducing the risk of imbalanced faults. With a robust 400 A current rating and a 600 V maximum system voltage, it offers reliable interruption for sizable industrial loads without compromising safety or performance. The part number HJL631400 makes sourcing and replacement straightforward, helping maintain operational continuity in critical infrastructure.

installation and operation tips

For optimal results, match the breaker to a system within its 600 V limit and a load up to 400 A. Ensure the installation follows local electrical codes and the manufacturer's guidelines for panel compatibility and secure mounting. Before replacing or upgrading, de-energize the circuit, verify the current and voltage requirements, and confirm that any downstream equipment is suitable for the protection level provided by this 3‑pole breaker.