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Square D HJF36040 - Molded Case Circuit Breaker 40A 600V 3P

Square D
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Square D HJF36040 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power distribution systems. It features a 40A current rating and a 600V voltage rating, housed within a compact H-frame measuring 163 mm H x 104 mm W x 86 mm D and weighing 4.9 lb. The breaker utilizes a thermal-magnetic trip unit for long-time and instantaneous (LI) protection functions, achieves a 65kA interrupting capacity at 480V, and is compliant with UL, CSA, NEMA, and IEC 60947-2 standards. Its bolt-on connection supports wire sizes from AWG 14 to 3/0, making it suitable for panelboards, switchboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, H Frame
  • Voltage Rating: 600V AC
  • 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 Power Distribution, Panelboards, Switchboards
  • Phase: 3
  • AIC Rating: 65kA @ 480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: H Frame
  • Wire Size: AWG 14 to AWG 3/0 (Aluminium/Copper Terminal)
  • Certification: UL, CSA, NOM
  • Weight: 4.9 lb


Product Identification
  • UPC: 606482046217
  • GTIN: 03606482046214