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Square D HDA260402AABCSJ - Molded Case 40A 2-Pole (600V, I-Line)

Square D
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Square D HDA260402AABCSJ is a molded case circuit breaker engineered for overcurrent protection in industrial and commercial power distribution systems. This 2-pole, 1-phase unit is rated for 40A at 600VAC and provides thermal-magnetic protection with LI (Long-Time and Instantaneous) trip functions for precise fault response. Weighing 7.5 lb, it features an I-Line style plug-in connection for secure mounting in panelboards and switchboards, with a compact molded case construction. The breaker carries an interrupting rating of 18kA at 480VAC and is UL Listed and CSA Certified for safety compliance. It is suitable for protecting branch circuits and feeder circuits in manufacturing facilities, commercial buildings, and other industrial environments.

Key Features & Specifications
  • Type: Molded Case
  • Manufacturer: Square D
  • Item Subcategory: Molded Case
  • Weight: 7.5 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 2
  • Connection: I-Line Style Plug-In
  • Protection: Thermal Magnetic
  • AIC rating: 18kA@480V
  • Phase: 1
  • Current Rating: 40A
  • Amperage: 400A
  • Mounting Type: I-Line
  • Interrupt Rating: 25 kA at 240 VAC, 18 kA at 480 VAC
  • Trip Unit: Thermal-Magnetic
  • Frame/Series: HDA
  • Certifications: UL Listed, CSA Certified
  • Field Reversible Line/Load Lugs
  • Compatible with Copper and Aluminum Conductors
  • Exclusive VISI-TRIP Indicator
  • Ambient Compensated