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Square D HDA36125SL - 125A 3-Pole Molded Case Breaker

Square D
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The Square D HDA36125SL is a 3-pole molded case circuit breaker from the Powerpact family, designed for thermal-magnetic protection in industrial power distribution systems. It is rated for 600V AC, 125A continuous current, and provides LI (Long-Time and Instantaneous) trip functions with an 18kA interrupting capacity at 480V, and is equipped with a 48Vac shunt trip for remote switching. This I-Line style plug-in unit weighs 6 lb and features a compact molded case construction for panelboard mounting. It complies with UL and NEMA standards for overcurrent protection in commercial and industrial environments. Typical applications include motor control centers, switchboards, and distribution panels requiring reliable branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Powerpact HDA, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic, LI (Long-Time and Instantaneous)
  • AIC Rating: 18kA@480V
  • Additional Info: Complete with 48Vac shunt trip
  • Weight: 6 lb
  • Standards: UL, NEMA
  • Applications: Industrial power distribution, motor control centers, switchboards


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