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Square D HJA36125AABCSH - Molded Case 125A 600V 3-Pole Breaker

Square D
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Square D HJA36125AABCSH is a three-pole molded case circuit breaker designed for thermal magnetic overcurrent protection in industrial power distribution systems. This 125A unit operates at a maximum voltage rating of 600VAC and provides an interrupting capacity of 65kA at 480VAC, with a long-time and instantaneous (LI) trip function for reliable overload and short circuit response. The breaker features an I-Line style plug-in connection and weighs 12.5 lb, supporting wire sizes from AWG 14 to 3/0 aluminum or copper within its H-Frame Powerpact construction. It is UL Listed and complies with CSA, IEC, and CE standards for global industrial safety requirements. Typical applications include motor control centers, panelboards, and switchboards in manufacturing plants, commercial buildings, and heavy machinery environments.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Square D
  • Model: HJA36125AABCSH
  • Current Rating: 125 A
  • Voltage Rating: 600 VAC / 250 VDC
  • Poles: 3
  • Phase: 3 (ABC connection)
  • Interrupt Rating: 65 kA at 480 VAC, 25 kA at 600 VAC, 20 kA at 250 VDC
  • Protection: Thermal Magnetic
  • Trip Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Frame Type: H-Frame (Powerpact H)
  • Continuous Current Rating: 80%
  • Wire Range: AWG 14 to 3/0 aluminum/copper
  • Weight: 12.5 lb
  • Certifications: UL Listed, CSA, IEC, CE marked