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Westinghouse 371D426G12 - Molded Case Circuit Breaker 400A 600V 3P

Westinghouse
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Westinghouse 371D426G12 is a molded case circuit breaker designed for providing instantaneous magnetic-only protection against short-circuit faults in three-phase industrial power distribution systems. It features a 400A current rating and a 600V AC voltage rating, housed within a robust LAB series frame with a bolt-on connection configuration for secure panel mounting. This breaker is engineered to meet industry standards, offering an interrupting capacity of 30kA at 480V AC to ensure reliable system protection. Its typical applications include safeguarding feeders and branch circuits within commercial and industrial electrical panels.

Key Features & Specifications
  • Type: LAB Series Molded Case Circuit Breaker, Magnetic-Only Protection (Instantaneous Trip)
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 30kA @ 480V AC
  • Connection: Bolt-On
  • Trip Type: I - Instantaneous (Magnetic Only)
  • Frame: LAB Series
  • Weight: 29 lb
  • Standards: Designed for industrial panelboard applications
  • Applications: Industrial power distribution, feeder and branch circuit protection
  • Note: Lugs are not included; required lugs must be sourced separately based on wiring specifications.