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Square D HDA36040AA - 40A 3-Pole Molded Case Breaker 600V

Square D
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Square D HDA36040AA is a 3-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It operates at a voltage rating of 600V and a current rating of 40A, with an AIC rating of 18kA at 480V. The unit features an I-Line style plug-in connection and thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions, weighing 7.5 lb. This breaker is constructed for 3-phase applications and complies with industry standards for reliable circuit interruption. It is commonly used in switchboards, panelboards, and motor control centers for commercial and industrial electrical systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Voltage Rating: 600V
  • Current Rating: 40A
  • Poles: 3
  • Phase: 3
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 18kA@480V
  • Weight: 7.5 lb