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Square D HJA36125SK - Molded Case Circuit Breaker 125A 600V

Square D
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Square D HJA36125SK is a 3-pole molded case circuit breaker from the Powerpact family, designed to provide LI (Long-Time and Instantaneous) protection against overloads and short circuits. This unit is rated for 600V AC, 125A continuous current, and delivers a 65kA interrupting capacity at 480V, with a thermal magnetic trip mechanism for reliable overcurrent response. The breaker features an I-Line style plug-in connection for secure panel mounting, weighs 5 lb, and is equipped with a 24Vac shunt trip for remote tripping capability. It complies with industry standards for industrial power distribution systems, making it suitable for protecting branch circuits in manufacturing facilities, commercial buildings, and heavy machinery applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Powerpact HJA Series, Thermal Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 65kA@480V
  • Connection: I-Line Style Plug-In
  • Functions: LI - Long-Time and Instantaneous
  • Additional Info: Complete with 24Vac Shunt Trip
  • Weight: 5 lb