NJL424400NA | Circuit Breaker | 400A | 2-Pole | 480V

Meet the NJL424400NA industrial circuit breaker — a purpose-built protective device engineered for 480V systems. With a robust 400A rating and a 2-Pole design, it’s tailored for the exacting demands of maintenance, retrofit, and replacement projects where reliable, consistent protection is non-negotiable.

• Exact compatibility: Use the part number NJL424400NA as your primary reference to match panels, switchgear, or OEM components. Before ordering, it's essential to confirm fit and ratings to ensure seamless integration.
• Industrial-grade performance: Designed for 480V environments, this 2-pole breaker protects two hot legs, delivering dependable overcurrent protection in distribution panels, motor control centers, and other heavy-use applications.
• Ideal for retrofit and replacement: A smart choice for upgrading or renewing protection in existing installations where 400A protection is required, helping minimize downtime and maintain system reliability.

Key specifications at a glance

• Amperage: 400A
• Poles: 2-Pole
• Voltage rating: 480V

Practical guidance for use

• Always verify compatibility by cross-referencing the exact part number with your equipment’s spec sheet or panel catalog.
• Consider your system's duty cycle and ensure any necessary mounting provisions or accessories are in place for a smooth retrofit or replacement.
• Handle and install with care, replacing only with the same model ID to preserve protective characteristics and trip behavior.

Whether you’re performing routine maintenance, replacing a failed unit, or upgrading protection across a 480V distribution network, the NJL424400NA circuit breaker provides the precise specifications and reliability you need to keep equipment protected and downtime to a minimum.