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American/Federal Pacific NEF437040 - 40A 3-Pole Molded Case Breaker

American/Federal Pacific
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American/Federal Pacific NEF437040 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in three-phase industrial electrical systems. It features a 40A current rating and a 480V AC voltage rating, housed within a robust, compact frame with a bolt-on connection for secure installation. This thermal magnetic breaker complies with industry standards for circuit protection and is engineered for integration into panelboards and switchboards requiring a 14kA interrupting capacity at 480V. Its typical applications include protecting feeders, motors, and branch circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection, NEF Series
  • Voltage Rating: 480V AC
  • Current Rating: 40A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 14kA @ 480V
  • Protection Functions: Long-Time and Instantaneous (LI)
  • Item Subcategory: Molded Case
  • Weight: 8 lb


Product Identification
  • Manufacturer: American/Federal Pacific
  • Model: NEF437040
  • Family: NEF Series