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Eaton Cutler-Hammer QBHW3040HS - 3-Pole 40A Circuit Breaker (22kA AIC, 240V)

Cutler Hammer
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Eaton Cutler-Hammer QBHW3040HS is a molded case circuit breaker designed to provide reliable overcurrent protection for three-phase industrial electrical systems. It features a 40A current rating and a 240V AC voltage rating, housed in a compact 3 in x 3 in x 3.2 in bolt-on configuration. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous protection, is HACR rated for HVAC equipment, and operates within a temperature range of -25°C to 70°C. It is engineered for demanding applications, offering a 22kA interrupting capacity at 240V and compatibility with wire sizes from AWG 14 to AWG 4, while being UL Listed and CSA Certified for safety compliance.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Dimensions: 3 in (L) x 3 in (H) x 3.2 in (W)
  • Standards: HACR Rated
  • Applications: Industrial three-phase power distribution
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Temp Rating: -25°C to 70°C
  • Phase: 3
  • AIC Rating: 22kA @ 240V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Wire Size: AWG 14 to AWG 4
  • Certification: UL Listed, CSA Certified
  • Weight: 1.151 lb


Product Identification
  • UPC: 786679743126
  • GTIN: 00786679743126