NEF431040 | Circuit Breaker | 3-Pole | 480V

NEF431040 is a rugged industrial circuit breaker designed for robust protection of three-phase 480V systems. This 3-pole unit shines in maintenance, retrofit, and replacement scenarios, giving you a dependable solution that keeps critical equipment online and safeguarded.

• Poles: 3-Pole
• Voltage: 480V
• Application: Ideal for 3-phase electrical networks in industrial settings, where coordinated protection across all lines is essential

Why a 3-pole setup matters: in three-phase systems, disconnecting only one line can leave others energized and create unsafe conditions. The NEF431040 provides simultaneous disconnection of all three poles, helping to quickly isolate faults and minimize downtime. Built for environments that demand reliability, this breaker is ready for ongoing service in manufacturing floors, processing plants, and other demanding facilities.

Who benefits most from this part: engineers and maintenance teams tackling equipment protection, panel retrofits, or replacement of aging breakers in 480V circuits. If your project requires strict compatibility with existing panels and exact ratings, the NEF431040 is the reference you want—the part number is your best guide to compatibility.

Key use cases and practical considerations:

• Maintenance: swap in the NEF431040 to restore reliable protection for a 3-phase machine line without changing other components.
• Retrofit: upgrade legacy equipment to 480V protection while preserving the same panel footprint and electrical characteristics.
• Replacement: when a prior part fails or wears out, use NEF431040 as a direct replacement reference to maintain consistent protection and trip behavior.
• Compatibility check: before ordering, verify that your panel, bus configuration, and system voltage align with the 3-Pole, 480V specifications. Rely on the part number NEF431040 as the definitive compatibility reference.

In practice, selecting the right breaker means fewer interruptions, safer shutdowns during faults, and smoother maintenance cycles. The NEF431040 delivers a straightforward, field-friendly solution for protecting critical three-phase loads at 480V, helping you keep operations running smoothly with confidence.