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Square D KA361251021 - Molded Case Circuit Breaker 125A 600V 3P

Square D
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Square D KA361251021 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 125A current rating and a 600V voltage rating, housed within a compact K-Frame thermal-magnetic unit that offers both long-time and instantaneous (LI) trip functions for coordinated protection. This three-pole breaker utilizes a plug-in I-Line style connection for simplified installation and maintenance, and it is factory-equipped with a 120VAC shunt trip device for remote tripping capability. The unit is engineered to interrupt up to 25kA at 480V, ensuring compliance with critical safety and performance standards for industrial electrical infrastructure.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection with Long-Time and Instantaneous (LI) Functions
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Frame Size: K Frame
  • AIC Rating: 25kA @ 480V AC
  • Poles: 3
  • Phase: 3
  • Connection: I-Line Style Plug-In
  • Additional Feature: Includes 120VAC Shunt Trip Device
  • Weight: 13 lb
  • Family: I-Line
  • Protection Type: Thermal Magnetic