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Square D HDA36150UO - Molded Case Circuit Breaker 150A 600V 3-Pole

Square D
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Square D HDA36150UO is a PowerPact H-Frame molded case circuit breaker designed for overload and short-circuit protection in commercial and industrial power distribution systems. This 3-pole, 150A unit is rated for 600V and features a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions, providing an interrupting capacity of 18kA at 480V. The breaker utilizes I-Line style plug-in mounting for secure installation in panelboards and switchboards, with a compact design and a weight of 6 lb. It is UL Listed and suitable for reverse-fed installations, ensuring compliance with industry safety standards. Typical applications include use in I-Line panelboards and switchboards for space-constrained environments requiring reliable circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Series: PowerPact H-Frame
  • Type: HDA
  • Poles: 3
  • Phase: 3
  • Current Rating: 150A
  • Voltage Rating: 600V
  • Interrupt Rating: 18kA @ 480V, 14kA @ 600V
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Connection: I-Line Style Plug-In
  • Control: Toggle
  • Weight: 6 lb
  • Standards: UL Listed


Part Number: HDA36150UO