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Cutler Hammer HFD3040 - 40A 3-Pole Molded Case Circuit Breaker

Cutler Hammer
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Cutler Hammer HFD3040 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial power systems. It features a 40A current rating and a 600V AC voltage rating, housed within a compact, bolt-on configuration measuring 3.38" x 6" x 4.13" (LxHxW) and weighing 4.3 lb. The breaker is CSA Certified, IEC Rated, and UL Listed, ensuring compliance with key industry standards for safety and performance. Its thermal-magnetic protection with long-time and instantaneous (LI) tripping functions makes it suitable for integration into motor control centers (MCCs), switchboards, and enclosed control panels from major manufacturers like Allen-Bradley, Eaton, and Rockwell Automation.

Key Features & Specifications
  • Type: HFD Series C Molded Case Circuit Breaker, Thermal Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Frame Size: 225A/F
  • Poles: 3
  • AIC Rating: 65kA at 480V AC
  • Connection: Bolt-On, Load Side Lug Terminal
  • Phase Connection: ABC, 3-Phase
  • Functions: LI (Long-Time and Instantaneous)
  • Dimensions: 3.38 in (Depth) x 6 in (Height) x 4.13 in (Width)
  • Weight: 4.3 lb
  • Wire Size Range (MCM): 14 AWG Minimum, 1/0 AWG Maximum
  • Operating Temperature: -4°F to 158°F (-20°C to 70°C)
  • Standards & Certification: UL Listed, CSA Certified, IEC Rated
  • Compatible Panel Types: Allen Bradley MCC, Eaton MCC, Rockwell Automation Enclosed Control, Switchboard, Westinghouse
  • Breaker Type: Standard
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 786679175842
  • GTIN: 00786679175842