NM632250 - 250Amp Circuit Breaker

NM632250 - 250Amp Circuit Breaker

When you replace a breaker in existing equipment, the details have to match. The NM632250 is a 250A, 3-pole Type NM molded case circuit breaker with a bolt-on design and thermal-magnetic operation. It also comes with load-side lug terminals. This breaker is rated 22k AIC at 600VAC, 30k AIC at 480VAC, and 42k AIC at 240VAC, giving you several important ratings to check against your existing electrical system. Physically, it measures 15.5 inches high, 8.19 inches wide, and 4.13 inches deep. The NM632250 makes the most sense for maintenance and replacement work where the existing equipment calls for this particular breaker style and configuration. Instead of matching on amperage alone, check the pole count, dimensions, mounting method, terminals, voltage, and interrupting rating as well. When those specifications match the application, the NM632250 provides the form, fit, and function needed for compatible legacy equipment. Its molded case construction is built to last when used and maintained as intended.

Key Features and Benefits

• 250A, 3-pole configuration for compatible three-pole electrical applications.
• Thermal-magnetic operation provides overload and short-circuit protection within its specified application.
• Bolt-on mounting matches equipment designed around this breaker configuration.
• Load-side lug terminals are included, an important detail when checking an existing installation.
• Rated 22k AIC at 600VAC, 30k AIC at 480VAC, and 42k AIC at 240VAC.
• 40°C rating as specified for this breaker.
• Molded case construction provides a practical, durable enclosure for the breaker's internal components.
• Well suited to form, fit, and functional replacement applications when all required specifications match.

Technical Specifications

• Part Number: NM632250
  
• Type: NM
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 250A
  
• Poles: 3
  
• Trip Type: Thermal-Magnetic
  
• AIC Rating: 22k @ 600VAC
  
• AIC Rating: 30k @ 480VAC
  
• AIC Rating: 42k @ 240VAC
  
• Mounting: Bolt-On
  
• Temperature Rating: 40°C
  
• Terminals: Load-Side Lug Terminals Included
  
• Height: 15.5 in.
  
• Width: 8.19 in.
  
• Depth: 4.13 in.
  

Material Compliance and Certifications

• The available specifications do not include specific certification, listing, or material-compliance information for the NM632250. If your job requires a particular agency listing, environmental standard, or material declaration, confirm that information from the markings or documentation associated with the individual breaker.
• Follow applicable electrical codes and the requirements of the equipment in which the breaker is used.

Where It Works Best

• The NM632250 250A circuit breaker is intended for compatible electrical distribution equipment that requires its specific Type NM configuration. It's especially relevant for legacy equipment maintenance and replacement projects, where changing breaker styles may not be appropriate and matching the existing setup is the priority.
• Before using an NM632250 as a replacement, compare it with the existing breaker and equipment requirements. Check the 250A rating, three-pole configuration, bolt-on mounting, thermal-magnetic operation, load-side lugs, physical dimensions, voltage, and AIC rating.
• That's an important distinction with older electrical equipment: a breaker that has the same amperage isn't automatically the right fit. The electrical ratings and physical configuration need to match the intended application. When they do, the NM632250 offers a straightforward way to maintain compatibility with the required form, fit, and function.