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Westinghouse LAB31250MW - Molded Case Circuit Breaker, 400A 3P 600V

Westinghouse
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Westinghouse LAB31250MW 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 voltage rating, housed within a robust 29 lb frame with a three-pole, bolt-on connection configuration. This unit complies with industry standards for interrupting capacity, delivering a 30kA AIC rating at 480V AC. Typical applications include protecting feeders and branch circuits in manufacturing facilities, data centers, and commercial buildings where reliable, instantaneous trip response is critical.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, LAB Series, Magnetic-Only Protection (I - Instantaneous Function)
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Frame Size: LAB
  • Trip Type: Magnetic Instantaneous
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 30kA @ 480V AC
  • Protection: Magnetic Only
  • Weight: 29 lb
  • Additional Note: Lugs are not included; specific lug part numbers require wiring specifications.


Product Identification
  • Manufacturer Part Number: LAB31250MW