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Square D KA36225G - Molded Case Circuit Breaker 225A 3-Pole

Square D
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Square D KA36225G is a 3-pole I-Line molded case circuit breaker from the KA type family, designed to provide LI (Long-Time and Instantaneous) thermal magnetic overcurrent protection for industrial and commercial power distribution systems. It is rated for 600V AC and 225A continuous current, with an interrupting capacity of 25kA at 480V AC, and supports a 250V DC rating with 10kA ground fault protection. The unit features a K Frame size, weighs 13 lb, and utilizes an I-Line style plug-in connection with load-side lugs accepting wire sizes from #4 AWG to 350 kcmil. This breaker complies with industry standards for molded case circuit breakers, ensuring reliable performance in demanding environments. Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers within industrial facilities and commercial buildings.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Family: I-Line
  • Type: KA
  • Weight: 13 lb
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: K Frame
  • Voltage Rating: 600V AC
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 25kA@480V
  • Phase: 3
  • Current Rating: 225A
  • Interrupt Rating: 25 kA @ 480V, 22 kA @ 600V, 42 kA @ 240V
  • DC Voltage Rating: 250V
  • Wire Size: #4 AWG to 350 kcmil
  • Ground Fault Protection: 10 kA @ 250V DC


Part Number: KA36225G