NJL424300 | Circuit Breaker | 300A | 2-Pole | 480V

Power protection you can trust for demanding 480V environments—the NJL424300 is a 300A, 2-pole industrial circuit breaker built for reliability and easy integration into existing power systems. Designed for maintenance, retrofit, and replacement projects where exact specifications matter, this unit ensures consistent protection without forcing major panel changes.

Key specifications and compatibility at a glance:

• Amperage: 300A
• Poles: 2-Pole
• Voltage rating: 480V
• Part number reference: NJL424300 (the best reference for compatibility)
• Optimal use cases: maintenance, retrofit, and replacement where matching specs are required

Why this breaker stands out

• Precise compatibility with 480V systems: Designed to protect and isolate heavy industrial loads in facilities such as manufacturing lines, process equipment, and large motor circuits.
• Fast, safe downtime recovery: A robust, field-proven design that helps minimize unplanned outages during maintenance windows or upgrades.
• Clear reference for procurement: Using the NJL424300 part number ensures you’re ordering the exact device that matches your panel’s trip curves and mounting interface.

Ideal use scenarios

• Factory floor motor feeders and main distribution panels powered by 480V systems
• Retrofit projects where existing breakers require precise 300A, 2-pole, 480V specifications
• Maintenance and replacement of aging protection devices to restore protective coordination and reliability

Practical procurement and installation tips

• Always confirm fit and ratings before ordering—the NJL424300 part number is your best reference for compatibility with your panel and bus configuration.
• Check the panel's compatible interrupting rating and ensure the breaker’s trip curve aligns with your protective coordination plan.
• Prepare a simple cross-reference log when replacing similar devices to document any minor routine differences and ensure traceability for future maintenance visits.

When you need a dependable, spec-accurate replacement for 480V applications, the NJL424300 delivers the protection you rely on—order with confidence and reference the exact part number for a precise fit.