NJS6340 | Circuit Breaker | 400A | 3-Pole | 600V

Meet the NJS6340 Circuit Breaker — a purpose-built protection device for demanding industrial power systems. With a robust 400A capacity, a 3-Pole configuration, and a 600V rating, this breaker is engineered to safeguard three-phase distribution and motor circuits in retrofit, maintenance, and replacement projects where exact specifications matter.

• Amperage: 400A
• Poles: 3-Pole
• Voltage: 600V

Where this breaker shines: when you’re upgrading or repairing industrial electrical infrastructure that demands precise, dependable protection. It’s a reliable choice for three-phase panels, switchgear assemblies, and retrofit jobs where you need to match existing specs exactly to maintain system integrity and safety.

Why choose the NJS6340?

• The part number is the most reliable reference for ensuring a correct fit with your equipment, reducing the guesswork often associated with replacements.
• Targeted for maintenance and retrofit: Designed to slot into existing 600V, three-phase circuits without requiring major panel modifications.
• Clear, auditable replacement path: Using the same specifications (400A, 3-Pole, 600V) helps maintain protective coordination and uptime in critical operations.

This product is ideal for facilities that rely on stable, safe three-phase power in industrial environments—manufacturing lines, processing plants, and utility-adjacent equipment where downtime is costly. If your service or equipment list calls for a 600V, three-pole protection device with a 400A rating, the NJS6340 is designed to align with those exact requirements.

Practical selection tips

• Always confirm fit and ratings before ordering to ensure compatibility with your existing panel, switchgear, or MCC footprint.
• Use the part number NJS6340 as the primary reference when verifying compatibility with your equipment manuals or supplier catalog.
• Cross-check your system’s three-phase configuration and ensure the breaker’s 600V rating matches your distribution network to maintain proper protection coordination.

Choose the NJS6340 for a precise, reliable replacement that respects your system’s protection scheme and minimizes installation ambiguity. It’s the practical, specification-driven choice for professionals who value exact compatibility and dependable performance in industrial power protection.