NJL631150 - 150Amp Circuit Breaker

NJL631150 - 150Amp Circuit Breaker

If you're replacing an existing NJL631150 circuit breaker, the details matter. This is a 150A, 3-pole molded-case circuit breaker with thermal-magnetic trip and bolt-on mounting. It's designed for compatible NJL applications where matching the existing breaker's electrical ratings, dimensions, and connection style is important.

The NJL631150 is rated 22k AIC at 600VAC, 30k AIC at 480VAC, and 42k AIC at 240VAC. It has a 40°C rating and comes with load-side lug terminals. Physical dimensions are 10.13 inches high, 8.25 inches wide, and 3.88 inches deep.

You may also see this breaker identified as NJL632150. That alternate number is worth knowing, especially when you're working from an older equipment list, maintenance record, or breaker identification. For replacement work, check the complete specifications against the breaker being replaced. A matching 150-amp rating by itself isn't enough.

With its molded-case construction and straightforward thermal-magnetic design, the NJL631150 is built to last when applied, installed, and maintained correctly.

Key Features and Benefits

• 150A, 3-pole design for compatible NJL electrical equipment.
• Thermal-magnetic trip provides overload and short-circuit protection within the breaker's intended application.
• Bolt-on mounting matches equipment designed for this connection style.
• Multiple AIC ratings 22k at 600VAC, 30k at 480VAC, and 42k at 240VAC.
• Includes load-side lug terminals to match the required connection arrangement.
• 40°C rating for the specified application.
• Also known as NJL632150, an important reference when checking older equipment records and part numbers.
• Well suited to form, fit, and function as a replacement in compatible legacy NJL systems.

Technical Specifications

• Part Number: NJL631150
  
• Alternate Part Number: NJL632150
  
• Type: NJL
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 150A
  
• Poles: 3
  
• Trip Type: Thermal Magnetic
  
• AIC @ 600VAC: 22k
  
• AIC @ 480VAC: 30k
  
• AIC @ 240VAC: 42k
  
• Temperature Rating: 40°C
  
• Mounting: Bolt-On
  
• Terminals: Load-Side Lug Terminals Included
  
• Height: 10.13 in.
  
• Width: 8.25 in.
  
• Depth: 3.88 in.
  
• Ship Weight: 23.00 lbs.

Material Compliance and Certifications

• Certification and material-compliance information was not provided for this specific NJL631150. Because requirements can differ by application and installation, confirm any required agency listing, certification, or material-compliance status using the markings and documentation for the individual breaker.
• Do not assume UL, CSA, RoHS, or other certification status unless you can verify it for the specific unit.

Where It Works Best

• The NJL631150 is a good fit for compatible legacy electrical equipment that specifically calls for an NJL-type, 150A, 3-pole, bolt-on molded case circuit breaker with the corresponding voltage and interrupting ratings.
• This is especially relevant for maintenance and replacement projects where keeping the original equipment configuration is the priority. If your existing documentation references NJL632150, that part number is also associated with the NJL631150.
• Before installation, compare the breaker with the existing equipment requirements. Check the part number, 150A rating, three-pole configuration, physical size, bolt-on mounting, terminals, voltage, and AIC rating. These details all affect compatibility. A qualified electrical professional should verify the final selection and installation.