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Westinghouse 371D426G37 - Molded Case Breaker 400A 600V 3P (30kA AIC)

Westinghouse
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Westinghouse 371D426G37 is a molded case circuit breaker designed for providing instantaneous magnetic-only protection against short-circuit faults in three-phase electrical systems. It is rated for 600V AC applications with a continuous current rating of 400A and an interrupting capacity of 30kA at 480V. The unit features a robust three-pole, bolt-on connection design within the LAB series frame and is constructed for industrial durability, weighing 29 lb. This breaker complies with relevant industry standards for safety and performance in demanding environments, making it suitable for integration into motor control centers, industrial panels, and power distribution equipment where selective coordination and reliable fault interruption are required.

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


Product Identification
  • Manufacturer Part Number: 371D426G37