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Cutler Hammer FD1040L - Molded Case Circuit Breaker, 40A 277V 1P

Cutler Hammer
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Cutler Hammer FD1040L is a molded case circuit breaker designed for providing reliable overcurrent protection in industrial and commercial electrical systems. It features a 40A current rating and a 277V AC voltage rating, suitable for single-phase applications. The breaker is constructed with a compact F-frame design, measuring 3.38 in (L) x 6 in (H) x 1.38 in (W) and weighing 4 lb, and utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous (LI) protection. It is UL Listed and offers an interrupting capacity of 35kA at 277V, ensuring compliance with industry safety standards. Typical applications include protection of feeders, branch circuits, and equipment within panelboards and switchboards.

Key Features & Specifications
  • Type: FD Series C, Molded Case, Thermal Magnetic Trip Unit (LI)
  • Voltage Rating: 277V AC
  • Current Rating: 40A
  • Dimensions: 3.38 in x 6 in x 1.38 in (L x H x W)
  • Standards: UL Listed
  • Applications: Industrial/Commercial Feeder & Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Feed-Thru
  • Temp Rating: -25 to 70 °C (-13 to 158 °F)
  • Phase: 1
  • AIC Rating: 35kA @ 277V
  • Connection: Feed-Thru
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous Trip (LI)
  • Frame Size: F Frame
  • Certification: UL Listed
  • Country of Origin: Dominican Republic
  • Weight: 4 lb


Product Identification
  • UPC: 786679398326
  • GTIN: 00786679398326