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Cutler-Hammer QBHW2040S - 2-Pole Circuit Breaker 40A 240V

Cutler Hammer
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The Cutler-Hammer QBHW2040S is a 2-pole molded case circuit breaker designed to provide reliable thermal-magnetic protection for 240V AC branch circuits. It features a 40A current rating and a 22kA interrupting capacity at 240V, housed in a compact 1-inch cubic form factor with a bolt-on connection for secure installation. This HACR-rated device complies with UL and CSA standards and operates across a temperature range of -25°C to 70°C (-13°F to 158°F). It is engineered for use in industrial and commercial electrical panels, protecting conductors from size AWG 14 to AWG 4.

Key Features & Specifications
  • Type: QBHW Series, Molded Case, Thermal-Magnetic Protection with Long Time and Instantaneous Trip Functions
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Dimensions: 1 in x 1 in x 1 in (L/D x H x W)
  • Standards: HACR rated, UL Listed, CSA Certified
  • Applications: Industrial and commercial branch circuit protection
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 1
  • AIC Rating: 22kA @ 240V
  • Connection: Bolt-On
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Wire Size: AWG 14 to AWG 4 (Aluminum/Copper)
  • Certification: UL Listed, CSA Certified
  • Family: Quicklag
  • Country of Origin: Dominican Republic
  • Weight: 1 lb


Product Identification
  • UPC: 786679742600
  • GTIN: 00786679742600