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Square D HDA260401AABCSK - Molded Case Circuit Breaker 40A 600V

Square D
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Square D HDA260401AABCSK is a 2-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It operates at 600V and 40A with a thermal-magnetic trip unit providing LI (Long-Time and Instantaneous) functions for precise fault response. The unit weighs 7.5 lb, features an I-Line style plug-in connection for secure mounting, and is rated for single-phase applications with A and B phase connections. It carries a UL listing and an interrupting capacity of 18kA at 480V, ensuring compliance with safety standards. This breaker is typically applied in panelboards, switchboards, and motor control centers requiring reliable branch circuit protection.

Key Features & Specifications
  • Manufacturer: Square D
  • Model: HDA260401AABCSK
  • Type: Molded Case Circuit Breaker
  • Current Rating: 40A
  • Voltage Rating: 600V
  • Poles: 2
  • Frame/Series: Powerpact HDA
  • Trip Unit: Thermal-Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Interrupt Rating: 18kA @ 480V
  • Mounting Type: I-Line Plug-In
  • Phase: Single Phase (A & B)
  • Weight: 7.5 lb
  • Certifications: UL Listed


Model: HDA260401AABCSK