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Federal Pacific NB240 - Molded Case Circuit Breaker 40A 2-Pole

Federal Pacific
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Federal Pacific NB240 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 240V voltage rating for single-phase applications, housed in a compact unit measuring 78.49 mm in depth by 112.78 mm in width and weighing 0.65 lb. This CSA-certified device utilizes a thermal-magnetic protection mechanism with long-time and instantaneous (LI) trip functions and offers a 10kA interrupting capacity at 240V. Its two-pole, bolt-on configuration is engineered for secure panel mounting and accommodates a wire size range from AWG 14 to AWG 2/0 for both aluminum and copper conductors, making it suitable for feeder and branch circuit protection in various installations.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, NB Series, Thermal-Magnetic Protection with Long-Time and Instantaneous (LI) Trip Functions
  • Voltage Rating: 240V AC
  • Current Rating: 40A
  • Dimensions: 3.09 in (78.49 mm) Depth x 4.44 in (112.78 mm) Width
  • Weight: 0.65 lb
  • Standards: CSA Certified
  • Applications: Industrial and Commercial Feeder/Branch Circuit Protection
  • Phase: 1
  • Poles: 2
  • Connection: Bolt-On
  • AIC Rating: 10kA @ 240V
  • Wire Size: AWG 14 to AWG 2 (Aluminum/Copper); AWG 4 to AWG 2/0 (Aluminum/Copper)
  • Protection: Thermal Magnetic
  • Functions: LI (Long-Time and Instantaneous)