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Cutler Hammer CH140 - 40A Molded Case Breaker (120V, 10kA)

Cutler Hammer
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Cutler Hammer CH140 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 120V voltage rating, housed within a compact 3.5" x 3" x 3" (LxHxW) plug-in unit weighing 0.2 lb. This thermal magnetic breaker is UL Listed and CSA Certified, offering 10kA interrupting capacity with LI (Long-time and Instantaneous) trip functions for coordinated protection. It is typically applied in industrial and commercial panelboards, compatible with 14 to 2 AWG aluminum or copper conductors.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection with LI (Long-time and Instantaneous) Trip
  • Voltage Rating: 120V AC
  • Current Rating: 40A
  • Dimensions: 3.5 in (L) x 3 in (H) x 3 in (W)
  • Standards: UL Listed, CSA Certified
  • Applications: Industrial and Commercial Panelboards, Branch Circuit Protection
  • Switch Type: Circuit Breaker
  • Configuration: Plug-In
  • Phase: 1
  • Amperage: 40A
  • AIC Rating: 10kA @ 120V
  • Connection: Plug-In
  • Poles: 1
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous Trip
  • Wire Size: 14 To 2 AWG (Aluminum/Copper)
  • Certification: UL Listed, CSA Certified
  • Country of Origin: United States
  • Weight: 0.2 lb


Product Identification
  • UPC: 782113101675
  • GTIN: 00782113101675