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Square D HDA260402AABCSK - Molded Case Breaker 40A 600V

Square D
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Square D HDA260402AABCSK is a Powerpact HDA series molded case circuit breaker designed for overcurrent protection in industrial and commercial electrical systems. This 2-pole unit is rated for 40 amps at 600V AC, featuring a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions for precise fault response. The breaker weighs 7.5 lb and utilizes an I-Line style plug-in mounting for secure installation in compatible panelboards, supporting A and C phase connections. It carries a UL listing and provides an interrupting rating of 18kA at 480V for reliable fault clearing. Typical applications include branch circuit protection in distribution panels, motor control centers, and other power distribution equipment.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Manufacturer: Square D
  • Series/Frame: Powerpact HDA
  • Amperage: 40A
  • Voltage Rating: 600V AC
  • Poles: 2
  • Interrupting Rating: 18kA @ 480V
  • Mounting Type: I-Line Style Plug-In
  • Trip Unit: Thermal-Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Phase Connection: A & C
  • Weight: 7.5 lb
  • Certifications: UL Listed


Model: HDA260402AABCSK