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Westinghouse MC3400M - Molded Case 400A 600V 3-Pole

Westinghouse
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Westinghouse MC3400M is a 3-pole molded case circuit breaker from the Seltronic family, designed for instantaneous magnetic-only protection in industrial power distribution systems. It is rated for 400A continuous current at 600VAC, with an interrupting capacity of 30kA at 480VAC, and operates on a 3-phase system. The unit features a bolt-on connection, weighs 38 lb, and utilizes a Type MC frame with an instantaneous (I) trip function for short-circuit protection without thermal delay. This breaker complies with industry standards for molded case circuit breakers, making it suitable for feeder and main disconnect applications in commercial and industrial switchboards, panelboards, and motor control centers where magnetic-only protection is required.

Key Features & Specifications
  • Type: Molded Case
  • Voltage Rating: 600V
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Magnetic Only
  • AIC rating: 30kA@480V
  • Functions: I - Instantaneous
  • Family: Seltronic
  • Weight: 38 lb


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