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Square D HJA260404 - Molded Case Circuit Breaker 40A 600V 2-Pole

Square D
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Square D HJA260404 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial electrical systems. It features a 40A current rating and a 600V voltage rating, housed within a compact H-frame measuring 163 mm x 104 mm x 86 mm (HxWxD) and weighing 3.999 lb. The breaker utilizes a thermal-magnetic trip unit for both long-time and instantaneous protection functions and is constructed for a wide operating temperature range of -25 to 70 °C. It complies with UL, CSA, NEMA, NOM, and IEC 60947-2 standards, ensuring suitability for a variety of commercial and industrial panelboard applications requiring a 65kA interrupting capacity at 480V.

Key Features & Specifications
  • Type: HJA Molded Case Circuit Breaker, Thermal-Magnetic Protection, I-Line Style Plug-In Connection
  • Voltage Rating: 600V
  • Current Rating: 40A
  • Dimensions: 6.4 in (163 mm) H x 4.09 in (104 mm) W x 3.4 in (86 mm) D
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial and Commercial Panelboards
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Phase: 1
  • AIC Rating: 65kA@480V
  • Connection: I-Line Style Plug-In
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous
  • Frame Size: H Frame
  • Wire Size: AWG 14...AWG 3/0 aluminium/copper terminal
  • Certification: UL, CSA, NOM
  • Weight: 3.999 lb


Product Identification
  • UPC: 785901539971
  • GTIN: 00785901539971