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Square D HDA36125UH - 3-Pole 125A Molded Case Breaker (600V)

Square D
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Square D HDA36125UH is a 3-pole molded case circuit breaker from the Powerpact family, designed to provide thermal-magnetic protection for industrial electrical systems. It is rated for 600V AC and 125A, with an interrupting capacity of 18kA at 480V, and features LI (Long-Time and Instantaneous) trip functions for precise overcurrent protection. The unit weighs 6 lb and uses an I-Line style plug-in connection for secure mounting in compatible panelboards. This breaker complies with industry standards for molded case circuit breakers, ensuring reliable performance in demanding environments. Typical applications include motor control centers, distribution panels, and other commercial or industrial power distribution systems requiring robust circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Powerpact HDA series, thermal-magnetic protection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Phase: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC Rating: 18kA@480V
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 6 lb
  • Standards: UL 489, CSA C22.2 No. 5
  • Applications: Industrial power distribution, motor control centers, panelboards


Product Identification
  • UPC: 785901890123
  • GTIN: 00785901890123