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Cutler Hammer FB3040 - 3P Molded Case Breaker 40A 600V

Cutler Hammer
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Cutler Hammer FB3040 is a three-pole molded case circuit breaker designed to provide reliable overcurrent protection for three-phase industrial electrical systems. It features a 40A current rating and a 600V AC voltage rating, utilizing a thermal-magnetic trip mechanism for both long-time delay and instantaneous short-circuit protection. The breaker is constructed with a bolt-on connection for secure installation and has an interrupting capacity of 14kA at 480V AC. It complies with relevant industry standards for circuit protection and is typically applied in panelboards, switchboards, and industrial control equipment where robust branch circuit protection is required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic Protection with Long-Time and Instantaneous (LI) Functions
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 14kA @ 480V AC
  • Protection: Thermal Magnetic
  • Family: AB DE-ION
  • Frame Type: FB
  • Weight: 11 lb


Product Identification
  • Manufacturer Part Number: FB3040