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Square D HDA260402AA - Molded Case Circuit Breaker 40A 600V

Square D
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Square D HDA260402AA is a molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. This 2-pole unit is rated for 600V AC and 40A, providing thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. The breaker features an I-Line style plug-in connection, weighs 7.5 lb, and is constructed for single-phase applications. It carries an AIC rating of 18kA at 480V, meeting industry standards for reliable fault interruption. Typical applications include branch circuit protection in panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Poles: 2
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • AIC Rating: 18kA@480V
  • Phase: 1
  • Weight: 7.5 lb
  • Item Subcategory: Molded Case


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