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Square D HJA36150US - 150A 3-Pole Molded Case Circuit Breaker

Square D
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Square D HJA36150US is a Powerpact H series molded case circuit breaker designed for overcurrent protection in industrial and commercial power distribution systems. This 3-pole thermal magnetic breaker is rated for 150A at 600VAC and provides LI (Long-Time and Instantaneous) trip functions for reliable fault clearing. The unit features I-Line style plug-in connectivity, weighs 5 lb, and is constructed for reverse fed applications with an 80% continuous current rating. It is certified to UL 489, CSA, NEMA, IEC, and CE standards, with an interrupting rating of 65kAIC at 480VAC. Typical applications include panelboards, switchboards, and motor control centers requiring robust branch circuit protection.

Key Features & Specifications
  • Type: HJA
  • Amperage: 150A
  • Voltage: 600VAC / 690VAC, 250VDC
  • Poles: 3
  • Phase: 3
  • Series: PowerPacT H
  • Connection Type: I-Line Style Plug-In
  • Trip Functions: LI - Long-Time and Instantaneous
  • Protection Type: Thermal Magnetic
  • Interrupt Rating: 100kAIC at 240VAC, 65kAIC at 480VAC, 25kAIC at 600VAC
  • Continuous Current Rating: 80%
  • Mounting: I-Line Bracket
  • Weight: 5 lb
  • Certifications: UL 489, CSA, NEMA, IEC, CE marked