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Cutler Hammer QC1040 - 1-Pole 40A Circuit Breaker (240V, 10kA AIC)

Cutler Hammer
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Cutler Hammer QC1040 is a molded case circuit breaker designed for providing reliable overcurrent protection in single-phase electrical systems. It features a 40A current rating and a 240V AC voltage rating, housed in a compact, durable frame measuring 3.7" x 4.8" x 1.2" (LxHxW) and weighing 0.4 lb. The breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous (LI) protection, is certified to UL and CSA standards, and operates effectively within a temperature range of -25°C to 70°C (-13°F to 158°F). Its feed-thru connection and compatibility with 14-10 AWG line/14-4 AWG load wire make it suitable for a variety of industrial and commercial panel applications.

Key Features & Specifications
  • Type: QC Series, Molded Case, Thermal-Magnetic Trip Unit (LI)
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Dimensions: 3.7 in (L) x 4.8 in (H) x 1.2 in (W)
  • Standards: UL Listed, CSA Certified
  • Applications: Industrial & Commercial Panel Protection
  • Switch Type: Circuit Breaker
  • Configuration: 1-Pole
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Phase: 1
  • AIC Rating: 10kA @ 120V
  • Connection: Feed-Thru
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip (LI)
  • Wire Size: 14-10 AWG Al/Cu (Line), 14-4 AWG Al/Cu (Load)
  • Certification: UL Listed, CSA Certified
  • Family: QUICKLAG
  • Country of Origin: Dominican Republic
  • Weight: 0.4 lb


Product Identification
  • UPC: 786679309001
  • GTIN: 00786679309001