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HJA36125UDYP

Square D
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Square D HJA36125UDYP is a 3-pole molded case circuit breaker designed for thermal magnetic protection in power distribution systems. It is rated for 125A continuous current at 600VAC and provides a 65kA interrupting capacity at 480VAC with LI (Long-Time and Instantaneous) trip functions. The unit features an I-Line style plug-in connection, weighs 12.5 lb, and supports wire sizes from 14 to 3/0 AWG. It is certified to UL 489, CSA, and IEC standards for reliable performance in demanding environments. This breaker is suited for industrial and commercial applications requiring robust overcurrent protection in 3-phase systems.

Key Features & Specifications
  • Type: Molded Case
  • Amperage: 125 A
  • Voltage Rating: 600 VAC / 250 VDC
  • Number of Poles: 3
  • Interrupt Rating: 100 kA at 240 VAC, 65 kA at 480 VAC, 25 kA at 600 VAC
  • Frame Type: H (PowerPact H)
  • Trip Unit: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Mounting Type: Plug-On I-Line
  • Connection: I-Line Style Plug-In
  • Wire Size Range: 14 to 3/0 AWG
  • Phase: 3-phase
  • Weight: 12.5 lb
  • Certifications: UL 489, CSA, IEC, NEMA
  • Trip Range: 900 to 1700 A


Square D HJA36125UDYP - Molded Case 125A 600V 3-Pole