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Westinghouse 371D426G22 - Molded Case Breaker 400A 600V (LAB Series)

Westinghouse
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Westinghouse 371D426G22 is a molded case circuit breaker designed for providing instantaneous magnetic-only protection against short-circuit faults in industrial power distribution systems. It is rated for 600V AC applications and features a 400A current rating with a 30kA interrupting capacity at 480V. The breaker is constructed as a two-pole, single-phase unit with a bolt-on connection style and a robust LAB series frame, weighing 27 lb for durable installation. It is engineered to meet relevant industry standards for circuit protection devices. This breaker is typically applied in panelboards and switchboards where reliable, instantaneous trip functionality is required for feeder or branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, LAB Series, Magnetic-Only Protection (Instantaneous Trip)
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Phase: 1
  • Poles: 2
  • AIC Rating: 30kA @ 480V
  • Connection: Bolt-On
  • Trip Type: I - Instantaneous (Magnetic Only)
  • Frame: LAB Series
  • Weight: 27 lb
  • Note: Lugs are not included; specific lug part numbers require wiring specifications.


Product Identification
  • Manufacturer Part Number: 371D426G22