NEF431040R | Circuit Breaker | 40A | 3-Pole | 480V

The NEF431040R is an industrial circuit breaker designed to protect demanding 3-phase electrical systems while simplifying maintenance, retrofits, and replacements. With a 40A rating across three poles and a 480V operating range, this breaker provides reliable overcurrent protection for modern industrial panels and equipment.

Key specifications at a glance

• Amperage: 40A
• Poles: 3-Pole
• Voltage rating: 480V

Why this breaker matters for your operation

In industrial environments, matching the exact part reference is essential to ensure compatibility with existing panelboards, MCCs, and feeders. The NEF431040R is identified by its part number, making it the most reliable reference for fit and ratings when you’re replacing or retrofitting equipment. By using this specific 3-pole, 480V breaker, you minimize downtime and avoid the guesswork that comes with generic substitutes.

Ideal use cases

• Maintenance and retrofit projects where a precise fit is required for 3-phase 480V systems
• Replacement in industrial control panels, motor feeders, and equipment racks
• Spare parts inventory for plants with standardized NEF431040R-compatible breakers

How this product solves common challenges

• Accurate compatibility: Rely on the part number NEF431040R to ensure your panel accepts this breaker without modification.
• Reliable protection for 480V systems: A dedicated 40A, 3-pole configuration safeguards three-phase circuits from faults, reducing the risk of equipment damage and unplanned downtime.
• Streamlined procurement: A clearly defined spec set simplifies ordering and cross-referencing in large maintenance inventories.

Practical guidance for purchase and installation

Before ordering, verify that the fit and ratings align with your equipment’s requirements. The part number NEF431040R serves as the best compatibility reference. When installing, follow standard safety practices for disconnecting power, securing connections, and torqueing terminals to the manufacturer’s specifications. Ensure the panel’s labeling and documentation permit a 3-pole, 480V device of 40A rating.

Why choose this particular circuit breaker

• Exact fit for 3-Pole, 480V environments: Specifically designed for three-phase systems common in industrial settings.
• Clear identification for maintenance teams: The NEF431040R part number is the definitive reference for compatibility, easing ordering and asset management.
• Focused on real-world use: Built to support maintenance, retrofit, and replacement scenarios where downtime and compatibility are critical concerns.

If your project requires a dependable, well-matched 3-pole circuit breaker for 480V service, the NEF431040R delivers clear value, from precise fit to straightforward replacement workflow. Use the part number as your anchor during planning and procurement to keep your electrical system protected and operating smoothly.