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Square D HDA260404AABCSJ - Molded Case 40A 600V Circuit Breaker

Square D
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The Square D HDA260404AABCSJ is a molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. This two-pole, single-phase unit is rated for 40A at 600VAC, with an interrupting capacity of 18kA at 480VAC, and employs thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions. The breaker features an I-Line style plug-in connection and weighs 7.5 lb, constructed for reliable operation in panelboards and switchboards. It complies with UL and NEMA standards for industrial electrical safety. Typical applications include branch circuit protection in manufacturing facilities, commercial buildings, and heavy machinery control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Poles: 2
  • Phase: 1
  • AIC Rating: 18kA@480V
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 7.5 lb
  • Standards: UL, NEMA
  • Applications: Industrial power distribution, branch circuit protection


Product Identification
  • UPC: Not available
  • GTIN: Not available