NJL631250 - 250Amp Circuit Breaker

NJL631250 - 250Amp Circuit Breaker

If you're replacing an NJL631250, the details matter. This is a 250-amp, 3-pole thermal-magnetic molded-case circuit breaker with a bolt-on mounting design and included load-side lug terminals. Its interrupting ratings are 22 kAIC at 600VAC, 30 kAIC at 480VAC, and 42 kAIC at 240VAC, and it carries a 40°C rating. The breaker measures 10.13 inches high, 8.25 inches wide, and 3.88 inches deep. You'll also sometimes see the NJL631250 referenced as NJL632250, which is useful to know when checking older equipment records, maintenance notes, or existing breaker markings. For legacy electrical equipment, getting the right replacement isn't simply a matter of finding another 250 amp breaker. The pole count, mounting style, dimensions, voltage, interrupting rating, terminals, and overall configuration must match the application. When those specifications match your equipment requirements, the NJL631250 provides the form, fit, and function you need. It's a straightforward, practical molded-case breaker built to last when properly applied and maintained.

Key Features and Benefits

• 250-amp, 3-pole design for equipment requiring this specific electrical configuration.
• Thermal-magnetic trip operation provides overload and short-circuit protection within the breaker's specified application.
• Bolt-on mounting for compatible NJL breaker installations.
• Rated 22 kAIC at 600VAC, 30 kAIC at 480VAC, and 42 kAIC at 240VAC.
• Includes load-side lug terminals, simplifying the match for applications that use this connection arrangement.
• 40°C rating for applications requiring this temperature rating.
• Also known as NJL632250, an important reference when checking existing equipment or older documentation.
• Well suited for maintaining compatible legacy electrical systems where the original breaker configuration needs to be preserved.
• Built to last when correctly selected, installed, and maintained within its specified ratings.

Technical Specifications

• Part Number: NJL631250
  
• Alternate Part Number: NJL632250
  
• Type: NJL
  
• Breaker Type: Molded Case Circuit Breaker
  
• Trip Type: Thermal Magnetic
  
• Amperage: 250A
  
• Poles: 3
  
• Mounting: Bolt-On
  
• AIC Rating: 22k @ 600VAC
  
• AIC Rating: 30k @ 480VAC
  
• AIC Rating: 42k @ 240VAC
  
• 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 NJL631250 do not include specific material compliance declarations, agency certifications, or certification file numbers. These details shouldn't be assumed.
• If your application requires a particular certification or material compliance standard, check the breaker nameplate and the documentation for the equipment it will be installed in. Also consider applicable electrical codes and project requirements before installation.

Where It Works Best

• The NJL631250 is intended for compatible electrical equipment that requires an NJL-style 250-amp, 3-pole, bolt-on molded-case circuit breaker. It's especially relevant when servicing older commercial or industrial electrical systems where maintaining the correct breaker configuration matters.
• When you're matching an existing breaker, start with the part number—but don't stop there. Check the 250A rating, three poles, voltage, AIC rating, bolt-on mounting style, dimensions, and terminal arrangement against the equipment requirements.
• If the existing paperwork says NJL632250, note that this is another part number associated with the NJL631250.
• The goal is simple: match the breaker to the equipment, not just the amp rating. Confirming the complete set of specifications helps ensure the replacement has the appropriate form, fit, and function for the intended application.