KA3150 - 150Amp Circuit Breaker

KA3150 - 150Amp Circuit Breaker

If you're sourcing a KA3150, there are a few details you'll want to put side by side with the breaker already in place. This model is rated 150 amps, has three poles, and uses a thermal-magnetic design with an interchangeable trip unit. The KA3150 is built to last, but the goal with a legacy replacement is simple—get the form, fit, ratings, trip arrangement, and connections right so the replacement matches what the existing equipment requires.

Key Features and Benefits

• 150A current rating for equipment requiring this specific amperage.
• The three-pole Type KA configuration provides clear identifiers for checking compatibility.
• Thermal-magnetic trip design matches systems calling for this type of circuit protection.
• Interchangeable trip unit is an important detail when comparing the KA3150 with an existing breaker.
• Load-side terminals are included, so the supplied connection arrangement is clearly defined.
• 40°C rated, matching applications where this temperature rating is specified.
  

Technical Specifications

• Part Number: KA3150
  
• Product Type: Circuit Breaker
  
• Type: KA
  
• Amperage: 150A
  
• Poles: 3
  
• Trip Design: Thermal-Magnetic
  
• Trip Unit: Interchangeable
  
• Temperature Rating: 40°C
  
• A.I.C. at 240VAC: 25 kA
  
• A.I.C. at 480VAC: 22 kA
  
• A.I.C. at 600VAC: 22 kA
  
• Load-Side Terminals: Included
  
• Width: 5.50 in.
  
• Height / Length: 10.13 in.
  
• Depth: 3.94 in.
  
• Overall Dimensions: 5.50" W × 10.13" L × 3.94 "D
  
• Approximate Ship Weight: 16.00 lb.
  

Material Compliance and Certifications

Specific UL, CSA, IEC, RoHS, REACH, or other certification and material compliance information was not provided in the available KA3150 specifications. These certifications should not be assumed. If your installation requires a particular approval or compliance standard, confirm it using the applicable product documentation.

Where It Works Best

The KA3150 150A 3-pole circuit breaker is suited to compatible existing and legacy electrical equipment that calls for a Type KA thermal-magnetic breaker with an interchangeable trip unit. It is especially straightforward to evaluate for replacement work because the amperage, pole count, interrupting ratings, dimensions, temperature rating, and load-side terminal configuration are all clearly specified.