J3150 - 150Amp Circuit Breaker

J3150 - 150Amp Circuit Breaker

When you're replacing a breaker in existing equipment, the small details matter just as much as the amp rating. The J3150 is a 150-amp, 3-pole J-frame circuit breaker with a thermal-magnetic, non-interchangeable trip unit. Rather than treating amperage alone as the deciding factor, the J3150 gives you a complete set of core specifications to check for form, fit, and function. For compatible legacy electrical equipment that specifically calls for these characteristics, it provides the familiar J-frame configuration needed to keep the system matched to its requirements. These products are built to last, but proper selection still requires verifying the complete breaker specification before installation.

Key Features and Benefits

• 150A rating: Provides the specified 150-amp current rating for equipment requiring this exact breaker capacity.
• 3-pole configuration: Clearly defined for three-pole applications where the existing equipment requires this arrangement.
• J-frame design: Helps identify the correct physical and electrical configuration when matching a Type J replacement breaker.
• Thermal-magnetic operation: Uses the thermal-magnetic trip design specified for the J3150.
• Non-interchangeable trip unit: An important compatibility detail to confirm when replacing an existing breaker.
• Load-side terminals included: The supplied configuration includes them.
• 40°C rating: Gives technicians another specific rating to compare with the requirements of the existing equipment.
  

Technical Specifications

• Part Number: J3150
  
• Type: J
  
• Frame: J-Frame
  
• Breaker Type: Thermal-Magnetic Circuit Breaker
  
• Amperage: 150 A
  
• Poles: 3
  
• A.I.C. Rating: 14k at 480VAC
  
• Interrupting Capacity: 14,000 A at 480VAC
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Load-Side Terminals: Included
  
• Width: 8.25 in.
  
• Height / Length: 10.13 in.
  
• Depth: 4.00 in.
  
• Dimensions: 8.25"W x 10.13"L x 4.00"D
  
• Approximate Ship Weight: 23.00 lb.
  

Material Compliance and Certifications

No specific UL, CSA, RoHS, REACH, IEC, or other certification or material-compliance information was provided in the available specifications for the J3150. Those certifications should not be assumed based solely on the breaker type or frame designation.

Where It Works Best

The J3150 is a practical choice for compatible existing and legacy electrical equipment that specifically requires a 150A, 3-pole Type J/J-frame thermal-magnetic circuit breaker with a non-interchangeable trip unit. Its defined ratings and dimensions are particularly useful when the goal is to identify a form, fit, and functional replacement rather than simply finding another breaker with the same amperage.