Federal Pacific NEF-433040 Circuit Breaker, 40A, 3-Pole, 480V

The Federal Pacific NEF-433040 circuit breaker is built for demanding industrial electrical service, offering reliable protection for 3-phase power systems. With a 40-amp rating and a 3-pole configuration, it is designed to guard 480V circuits in manufacturing facilities, warehouses, and maintenance enclosures. Use the part number NEF-433040 to confirm compatibility with your panel and application requirements.

Key specifications

• Amperage: 40 A
• Poles: 3
• Voltage rating: 480V
• Part number: NEF-433040
• Manufacturer: Federal Pacific
• Product type: Circuit Breaker

Why the 3-Pole, 480V design matters

This 3-pole configuration is purpose-built for three-phase electrical distributions common in industrial environments. The 480V rating ensures it can protect high-energy circuits without nuisance tripping in demanding equipment setups. By using the NEF-433040, you’re selecting a purpose-built component that aligns with industrial service expectations for reliable overcurrent protection and consistent performance under load.

Ideal use cases

• Replacement projects in existing industrial panels where a 3-pole, 480V circuit breaker is required
• Maintenance activities that demand standard spare parts to minimize downtime
• New installations in three-phase, 480V distribution systems for manufacturing lines, processing facilities, and large equipment enclosures

How to verify compatibility

Always verify fit by the exact part number and the specific application requirements. The NEF-433040 is the reference you should match to your panel model and circuit protection needs. If you need help confirming compatibility or matching a part number to your installation, message us and we’ll assist with validation and options.

Practical considerations

Keep this breaker in your inventory as a dedicated solution for 3-phase, 480V protection. By using the correct part number for ordering and maintenance, you reduce the risk of mismatched components and ensure more predictable system protection during service and repairs.