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Westinghouse LAB31750MW - 400A Molded Case Breaker (30kA AIC, 600V)

Westinghouse
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Westinghouse LAB31750MW is a molded case circuit breaker designed for providing instantaneous magnetic-only protection against short-circuit faults in three-phase industrial power systems. It features a 400A current rating and a 600V voltage rating, housed within a robust 29 lb frame with a bolt-on connection configuration for secure panel mounting. This breaker complies with industry standards for interrupting capacity, delivering a 30kA AIC rating at 480V to ensure reliable fault interruption. Its typical applications include protecting feeders and branch circuits in commercial and industrial electrical distribution equipment where selective coordination and high-fault current withstand are required.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, LAB Series, Magnetic-Only Protection (I - Instantaneous)
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Phase: 3
  • Poles: 3
  • Connection: Bolt-On
  • AIC Rating: 30kA @ 480V
  • Protection Function: Instantaneous Trip (Magnetic)
  • Frame Size: LAB
  • Weight: 29 lb
  • Standards: Designed to meet applicable industry standards for circuit interruption
  • Applications: Industrial and commercial power distribution, feeder and branch circuit protection
  • Note: Lugs are not included; specific lug part numbers require wiring specifications.


Product Identification
  • Manufacturer Part Number: LAB31750MW