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HDA36150U43XAA

Square D
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Square D HDA36150U43XAA is a 3-pole molded case circuit breaker designed for overcurrent protection in three-phase power distribution systems. It is rated for 600VAC and 150A, with an 18kA interrupting capacity at 480VAC, and utilizes a solid-state trip unit providing LSI (Long-Time, Short-Time, and Instantaneous) protection functions. The breaker features an I-Line style plug-in connection, weighs 10.27 lb, and is constructed on an HDA frame suitable for reverse fed applications. It complies with UL 489 listing standards for safety and performance in electrical installations. Typical applications include residential, commercial, and industrial power distribution environments.

Key Features & Specifications
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Weight: 10.27 lb
  • Functions: LSI - Long-Time, Short-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: I-Line Style Plug-In
  • Protection: Solid State
  • AIC rating: 18kA@480V
  • Phase: 3
  • Current Rating: 150A
  • Frame Type: HDA
  • Mounting Type: I-Line Plug-In
  • Trip Unit: Thermal Magnetic with LSI functions
  • Suitable for Reverse Fed Applications
  • UL 489 Listed
  • Applications: Residential, Commercial, Industrial


Square D HDA36150U43XAA - Molded Case 150A 600V 3-Pole