Industrial NEF433100NA 100A 3-Pole 480 V Circuit Breaker

Engineered for demanding industrial environments, the Industrial NEF433100NA 100A 3-Pole 480 V Circuit Breaker delivers reliable overcurrent protection for your three-phase power distribution. This rugged device is purpose-built to safeguard motors, feeders, and control circuits in manufacturing, facilities, and heavy industry, helping you minimize downtime and protect valuable equipment.

• Current rating: 100 A
• Poles: 3
• Voltage rating: 480 V
• Part number: NEF433100NA

Key benefits in real-world use

Designed for 3-phase systems at 480 V, this breaker ensures simultaneous disconnection of all three lines during a fault, maintaining system balance and protecting conductors, motors, and drives from damage. Its industrial-grade construction stands up to frequent switching, voltage transients, and the rigors of a busy plant floor, delivering dependable protection where it matters most.

Ideal use cases

• Protection for large motors and motor control centers in manufacturing lines
• Feeders and distribution circuits in warehouses, distribution centers, and industrial facilities
• Safety-critical protection for pumps, fans, conveyors, and CNC equipment powered by 480 V three-phase systems

Why this model stands out

The NEF433100NA is a purpose-built solution for 480 V three-phase environments, offering straightforward integration into compatible panels and assemblies. With its 100 A rating, it provides robust protection for medium-to-high current circuits without compromising workflow. The three-pole arrangement simplifies wiring and guarantees coordinated tripping across all phases, reducing the risk of phase imbalance and electrical fault propagation.

Practical considerations and tips

• Confirm compatibility with your panel or enclosure that accepts 3-pole, 480 V protective devices.
• Verify that load currents and motor starting characteristics stay within the 100 A rating to prevent nuisance trips.
• Keep a spare NEF433100NA on hand for rapid replacement in maintenance cycles or after a fault event.
• Document the part number (NEF433100NA) in your asset registry to ensure correct ordering and replacement alignment with your electrical drawings.

Whether you’re overhauling an old distribution setup or equipping a new industrial line, the NEF433100NA 100A 3-Pole 480 V Circuit Breaker delivers clear, dependable protection for your critical 3-phase circuits. It’s a targeted, no-nonsense solution built to keep industrial operations running smoothly and safely.