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Square D HJA36125UAYP - Molded Case Circuit Breaker 125A 600V 3-Pole

Square D
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Square D HJA36125UAYP is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial and commercial power distribution systems. It is rated for 125A at up to 600VAC and 250VDC, with a high interrupting capacity of 65kA at 480VAC. This thermal magnetic breaker features LI (Long-Time and Instantaneous) trip functions, an I-Line style plug-in connection for easy mounting, and weighs 12.5 lb. It is suitable for reverse-fed applications and operates within a temperature range of -13 to 158 degrees Fahrenheit. The HJA36125UAYP is commonly used in panelboards, switchboards, and other power distribution equipment requiring reliable circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Part Number: HJA36125UAYP
  • Amperage Rating: 125 A
  • Voltage Rating: 600 VAC / 250 VDC
  • Number of Poles: 3
  • Frame Type: H-Frame
  • Trip Unit: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Mounting: I-Line Plug-On
  • Connection: I-Line Style Plug-In
  • Interrupt Rating: 100 kA at 240 VAC / 65 kA at 480 VAC / 25 kA at 600 VAC / 20 kA at 250 VDC
  • Phase: 3
  • Weight: 12.5 lb
  • Wire Gauge: 14 AWG to 3/0 AWG
  • Operating Temperature: -13 to 158 degrees F
  • Trip Range: 900 A Hold / 1700 A Trip