NFJ434125 | Circuit Breaker | 125A | 3-Pole | 480V

NFJ434125 is a purpose-built industrial circuit breaker engineered for demanding 3-phase power environments. With a 125A rating, a 3-pole configuration, and a 480V operating range, this unit delivers dependable overcurrent protection for mid-size feeders, motors, and distribution circuits. Its design makes it a reliable choice for maintenance, retrofit, and replacement projects where exact specifications matter.

Key specifications

• Amperage: 125A
• Poles: 3-Pole
• Voltage: 480V

Why this breaker is a smart match

Three-pole protection ensures balanced safeguarding across all three phases, helping maintain stable load distribution in industrial, 3-phase systems. The 480V rating aligns with common industrial feeders and motor circuits, while the 125A capacity protects downstream equipment without triggering unnecessary trips. This combination supports reliable uptime for manufacturing lines, processing equipment, and large HVAC installations.

Fit, compatibility, and replacement guidance

For a trustworthy replacement, confirm fit and ratings before ordering. The part number NFJ434125 serves as the most accurate reference for compatibility with your existing panels and replacement schedules. When swapping in this breaker, verify that your panel supports a 3-pole device rated for 480V and 125A, and check any required mounting hardware or accessories per the panel manufacturer’s guidelines.

Ideal use cases

• Maintenance or service swaps in 3-phase, 480V electrical systems
• Retrofit projects where a 125A, 3-pole breaker is required
• Spare protection for critical feeders in industrial environments

Practical tips for best results

• Keep organized records of the part number (NFJ434125) and the panel’s exact specifications to simplify future replacements.
• During installation, inspect terminations and wiring to ensure clean, secure connections.
• Store spare breakers in a labeled, temperature-controlled area to preserve performance and longevity.