NJL631125 - 125Amp Circuit Breaker

NJL631125 - 125Amp Circuit Breaker

When you're replacing a breaker in existing equipment, getting the details right matters. The NJL631125 is a 125-amp, 3-pole molded-case circuit breaker with a bolt-on mounting configuration and a thermal-magnetic trip. It's intended for compatible electrical equipment that calls for an NJL-type breaker with these specific ratings and dimensions. The NJL631125 is rated 22k AIC at 600VAC, 30k AIC at 480VAC, and 42k AIC at 240VAC, and has a 40°C rating. It measures about 10.13 inches high, 8.25 inches wide, and 3.88 inches deep, and includes load-side lug terminals. One detail worth knowing when checking an old breaker or maintenance records: NJL631125 is also known as NJL632125. That alternate number can make identification a little easier. For existing systems that require this NJL configuration, the focus is simple: match the breaker's electrical ratings, mounting, dimensions, poles, and terminal arrangement to the equipment. These breakers are built to last and are well suited to maintaining compatible legacy electrical systems.

Key Features and Benefits

• 125-amp rating for equipment designed around this amperage.
• 3-pole configuration for compatible three-pole applications.
• Thermal-magnetic trip provides overcurrent protection according to the breaker's specified characteristics.
• Bolt-on mounting matches equipment designed for this breaker style.
• Interrupting ratings of 22 kAIC at 600VAC, 30 kAIC at 480VAC, and 42 kAIC at 240VAC.
• 40°C rating for the specified breaker application.
• Load-side lug terminals included.
• Also identified as NJL632125, which can help when comparing part numbers on existing equipment and in documentation.
• Designed with the form, fit, and function needed for compatible legacy NJL applications.

Technical Specifications

• Part Number: NJL631125
  
• Alternate Part Number: NJL632125
  
• Type: NJL
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip Type: Thermal Magnetic
  
• Mounting Style: Bolt-On
  
• Poles: 3
  
• Amperage: 125A
  
• AIC @ 600VAC: 22k
  
• AIC @ 480VAC: 30k
  
• AIC @ 240VAC: 42k
  
• Temperature Rating: 40°C
  
• Height: 10.13 in.
  
• Width: 8.25 in.
  
• Depth: 3.88 in.
  
• Ship Weight: 23.00 lbs.
• Terminals: Load-Side Lug Terminals Included
  

Material Compliance and Certifications

• The available specifications for the NJL631125 did not include specific certification numbers, agency listings, or material compliance information. If your application has particular certification or compliance requirements, check the markings on the breaker and the documentation for the equipment where it will be installed. This is especially important when matching components in existing electrical systems.

Where It Works Best

• The NJL631125 makes the most sense in existing electrical distribution equipment designed to use an NJL-type molded case circuit breaker. It is especially relevant for maintenance and replacement work where the original installation calls for a 125A, 3-pole, bolt-on thermal magnetic breaker with matching dimensions and interrupting ratings.