JA3150W - 150Amp Circuit Breaker

JA3150W - 150Amp Circuit Breaker

When you’re trying to match a breaker to existing equipment, the details matter more than marketing language. The JA3150W is a 150-amp, 3-pole Type JA circuit breaker with a thermal-magnetic, non-interchangeable trip unit and a 40°C rating. For compatible legacy equipment that calls for this particular Type JA configuration, the JA3150W keeps replacement decisions focused on form, fit, electrical ratings, and function. These products are built to last, but proper selection still depends on confirming that all required specifications for the equipment where the breaker will be installed are met.

Key Features and Benefits

• 150-amp rating: Provides a clearly defined current rating for matching against existing equipment requirements.
• 3-pole configuration: Makes pole-count verification straightforward when identifying a compatible replacement.
• Type JA construction: Intended for compatibility checks where the existing equipment specifically calls for a Type JA breaker.
• Thermal-magnetic operation: Uses the specified thermal-magnetic circuit breaker design.
• Non-interchangeable trip unit: An important configuration detail to verify when replacing an existing breaker.
• No terminals included: Clearly identifies the terminal configuration, allowing it to be checked against installation requirements before use.
  

Technical Specifications

• Part Number: JA3150W
  
• Type: JA
  
• Amperage: 150 A
  
• Number of Poles: 3
  
• A.I.C. at 600VAC: 22k
  
• A.I.C. at 480VAC: 22k
  
• A.I.C. at 240VAC: 25k
  
• Interrupting Capacity at 600VAC: 22,000 A
  
• Interrupting Capacity at 480VAC: 22,000 A
  
• Interrupting Capacity at 240VAC: 25,000 A
  
• Trip Design: Thermal-Magnetic
  
• Trip Unit: Non-Interchangeable
  
• Temperature Rating: 40°C
  
• Terminals: Not Included
  
• Width: 5.50 in.
  
• Height / Length: 10.13 in.
  
• Depth: 3.94 in.
  
• Dimensions: 5.50"W x 10.13"L x 3.94"D
  
• Approximate Ship Weight: 16.00 lb.
  

Material Compliance and Certifications

The supplied specifications for the JA3150W do not specify any UL, CSA, IEC, RoHS, REACH, or other certification or material compliance information. These certifications should not be assumed based on the Type JA designation, electrical ratings, or physical configuration.

Where It Works Best

The JA3150W is appropriate for compatible existing and legacy electrical equipment that requires a 150A, 3-pole Type JA thermal-magnetic circuit breaker with a non-interchangeable trip unit. Note that this unit does not include terminals, so the required terminal arrangement should be verified during replacement.