JA3150 - 150Amp Circuit Breaker

JA3150 - 150Amp Circuit Breaker

When you're replacing a breaker in existing equipment, small differences in specifications matter. The JA3150 is a 150-amp, 3-pole Type JA circuit breaker with a thermal-magnetic, non-interchangeable trip unit. For legacy equipment that calls for this specific Type JA configuration, the JA3150 provides the form, ratings, trip arrangement, and terminal setup needed for an accurate compatibility check. These products are built to last, but the right replacement still comes down to matching the specifications—not guesswork.

Key Features and Benefits

• 150A, 3-pole configuration: Gives you two of the most important specifications to check immediately when identifying a replacement.
• Type JA: Designed for equipment requiring this specific breaker type and physical configuration.
• Thermal-magnetic trip: Uses the specified thermal-magnetic trip design for circuit protection.
• Non-interchangeable trip unit: An important detail when matching the JA3150 to an existing breaker or equipment specification.
• Load-side terminals included: No ambiguity about whether this particular configuration comes with load-side terminals.
  

Technical Specifications

• Part Number: JA3150
  
• Type: JA
  
• Amperage: 150 A
  
• 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
  
• Load-Side Terminals: 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 JA3150 specifications do not provide specific UL, CSA, IEC, RoHS, REACH, or other certification or material compliance information. Those approvals should not be assumed from the breaker type or ratings.

Where It Works Best

The JA3150 makes sense when maintaining compatible existing or legacy electrical equipment that specifically requires a 150A, 3-pole Type JA thermal-magnetic circuit breaker with a non-interchangeable trip unit. Because load-side terminals are included, the configuration should also match the equipment's requirements.