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Square D HJA36125UOYP - Molded Case 125A 600V 3-Pole Breaker

Square D
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Square D HJA36125UOYP is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 125A continuous current at up to 600V AC with a 65kA interrupting capacity at 480V, utilizing a thermal magnetic trip mechanism for long-time and instantaneous protection. The unit features an I-Line style plug-in connection for direct mounting on Square D panelboards and switchboards, weighing 12.5 lb with a compact molded case construction. This breaker complies with UL 489 and NEMA standards for safety and performance in commercial and industrial environments. Typical applications include branch circuit protection in manufacturing facilities, data centers, and heavy machinery installations.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic, LI (Long-Time and Instantaneous) Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • AIC Rating: 65kA@480V
  • Phase: 3
  • Protection: Thermal Magnetic
  • Weight: 12.5 lb
  • Item Subcategory: Molded Case
  • Functions: LI - Long-Time and Instantaneous


Product Identification
  • UPC: Not specified
  • GTIN: Not specified