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Square D HDA36150SR - 150A 3-Pole Molded Case Circuit Breaker

Square D
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Square D HDA36150SR is a 3-pole, 150A molded case circuit breaker from the PowerPact H series, designed for overload and short circuit protection in commercial and industrial power distribution systems. It operates at a voltage rating of 600V AC with an interrupting rating of 18kA at 480V AC, utilizing a thermal magnetic trip mechanism with LI (Long-Time and Instantaneous) functions for precise protection. The breaker features an I-Line style plug-in mounting for Class 612 panelboards and switchboards, weighs 6 lb, and includes a 125Vdc shunt trip for remote tripping capability. It is UL listed and suitable for reverse fed applications, ensuring compliance with industry standards. This unit is engineered for demanding environments such as manufacturing facilities, data centers, and large commercial buildings requiring reliable circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Series: PowerPact H
  • Type: HDA
  • Frame Type: H-Frame
  • Number of Poles: 3
  • Rated Current: 150A
  • Voltage Rating: 600V AC
  • Interrupting Rating: 18kA @ 480V AC
  • Protection Type: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Mounting Type: I-Line Style Plug-In
  • Connection: I-Line Plug-In
  • Phase: 3
  • Control Type: Toggle
  • Continuous Current Rating: 80%
  • Terminal Wire Size: 14 to 3/0 AWG (Copper/Aluminum)
  • Weight: 6 lb
  • Additional Info: Complete with 125Vdc shunt trip
  • Certifications: UL Listed


Part Number: HDA36150SR