NFJ631125 - 125Amp Circuit Breaker

NFJ631125 - 125Amp Circuit Breaker

The NFJ631125 125 Amp Circuit Breaker is a dependable solution for protecting and maintaining existing electrical systems in commercial and industrial environments. Designed as a 3-pole, thermal magnetic molded case breaker, it delivers consistent protection against overloads and short circuits—two of the most common threats to electrical reliability. With its bolt-on mounting style and compact footprint, this breaker integrates easily into established panels, making it a practical choice when uptime, safety, and system compatibility matter. Built for everyday electrical demands, the NFJ631125 helps keep critical equipment running smoothly while supporting long-term system performance.

Key Features and Benefits

• Thermal Magnetic Protection – Combines thermal and magnetic trip elements to help guard circuits from overloads and short-circuit conditions.
• 3-Pole Configuration – Ideal for three-phase electrical systems commonly found in commercial and industrial settings.
• Bolt-On Installation – Allows for a secure fit and straightforward replacement within existing equipment.
• Load-Side Lug Terminals Included – Provides reliable conductor connections, reducing the risk of loose wiring or performance issues.
• Space-Efficient Design – Compact dimensions make it easier to work within crowded panels or retrofit scenarios.

Technical Specifications

• Amperage Rating: 125 Amps
• Number of Poles: 3
• Voltage Rating: 480 VAC / 240 VAC
• Interrupting Capacity (AIC):
  • 22kA @ 480 VAC
  • 25kA @ 240 VAC
• Frame Type: NFJ
• Breaker Type: Thermal Magnetic, Molded Case
• Installation Type: Bolt-On
• Operating Temperature: 40°C
• Dimensions: 4.13" W × 9.31" L × 3.75" D
• Included: Load-Side Lug Terminals

Material Compliance and Certifications

• The NFJ631125 circuit breaker is manufactured using quality materials that meet established industry standards for safety and performance.
• It is certified for professional electrical use, ensuring dependable operation in demanding environments where compliance and consistency are essential.

Where It Works Best

• This breaker is well-suited for maintenance, repair, and replacement applications in existing electrical systems.
• It performs especially well in commercial buildings, industrial facilities, and other installations that require a reliable 125-amp, three-phase protection device.
• When maintaining system integrity is a priority, the NFJ631125 offers a dependable, no-nonsense solution.