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Westinghouse 373B237G03 - Molded Case Breaker 800A 600V

Westinghouse
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Westinghouse 373B237G03 is a 2-pole molded case circuit breaker from the MARK 75 family, designed for overcurrent protection in industrial power distribution systems. It features a thermal magnetic protection mechanism with LI (Long-Time and Instantaneous) trip functions, rated for 600V AC and 800A continuous current with an interrupting capacity of 35kA at 480V. This bolt-on unit weighs 34 lb and is constructed for single-phase applications, ensuring reliable fault interruption and equipment safeguarding. The breaker complies with industry standards for molded case circuit breakers, making it suitable for use in switchboards, panelboards, and motor control centers. Typical applications include protecting feeders, transformers, and large motor circuits in manufacturing plants, commercial buildings, and utility installations.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, LI (Long-Time and Instantaneous)
  • Voltage Rating: 600V
  • Current Rating: 800A
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 35kA@480V
  • Phase: 1
  • Functions: LI - Long-Time and Instantaneous
  • Family: MARK 75
  • Type: HMA
  • Weight: 34 lb
  • Item Subcategory: Molded Case


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