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Square D HDA36110SK - Molded Case 110A 600V 3-Pole Breaker

Square D
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The Square D HDA36110SK is a molded case circuit breaker from the Powerpact family, designed for overcurrent protection in industrial power distribution systems. This three-pole, 110A unit operates at 600V and provides LI (Long-Time and Instantaneous) protection through a thermal magnetic trip mechanism, with a 24Vac shunt trip for remote disconnection. The breaker features an I-Line style plug-in connection for secure mounting in compatible panelboards and switchboards, weighing 6 lb with a compact molded case construction. It complies with industry standards for safety and performance, carrying an AIC rating of 18kA at 480V for robust fault interruption. This breaker is suited for three-phase industrial applications requiring reliable circuit protection and remote tripping capability.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Powerpact HDA, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 110A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 18kA@480V
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic, LI (Long-Time and Instantaneous)
  • Functions: LI - Long-Time and Instantaneous
  • Additional Info: Complete with 24Vac shunt trip
  • Weight: 6 lb
  • Frame Size: HDA
  • Breaker Type: HDA
  • Circuit Breaker Mounting Style: Plug-In
  • Terminal Connection: I-Line
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL, CSA, NEMA
  • Installation Type: Panelboard/Switchboard
  • Item QTY: 1
  • Breaker Frame: HDA
  • Current Rating: 110A
  • Operating Temperature Maximum Celsius: 40°C


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