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Square D HJF36125 - Molded Case Circuit Breaker 125A 600V 3P

Square D
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Square D HJF36125 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 125A current rating and a 600V AC voltage rating, housed within a compact H-frame measuring 163 mm H x 104 mm W x 86 mm D and weighing 3.999 lb. The breaker utilizes a thermal-magnetic trip unit for combined long-time and instantaneous (LI) protection, achieves a 65kA interrupting capacity at 480V, and is compliant with UL, CSA, NEMA, NOM, and IEC 60947-2 standards. Its bolt-on connection and busbar terminals accommodate copper or aluminum conductors from 14 AWG to 3/0 AWG, making it suitable for panelboards and switchboards in commercial and industrial facilities operating within a temperature range of -2 to 70 °C.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Frame Size: H
  • Poles: 3
  • AIC Rating: 65kA @ 480V AC
  • Phase: 3
  • Connection: Bolt-On, Busbar Terminal
  • Wire Size: 14 AWG to 3/0 AWG (Copper or Aluminum)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Protection Functions: Long-Time & Instantaneous (LI)
  • Dimensions: 163 mm H x 104 mm W x 86 mm D (6.4 in x 4.09 in x 3.4 in)
  • Weight: 3.999 lb
  • Operating Temperature: -2 to 70 °C (28 to 158 °F)
  • Family: PowerPact
  • Country of Origin: United States


Product Identification
  • UPC: 785901009672
  • GTIN: 00785901009672