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Westinghouse MA Series MAY - 3-Pole 300A Molded Case Breaker

Westinghouse
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Westinghouse MA Series MAY is a 3-pole molded case circuit breaker designed for thermal magnetic overcurrent protection in industrial power distribution systems. It is rated for 240V AC, 300A continuous current, and provides LI (Long-Time and Instantaneous) trip functions with a bolt-on connection. The unit weighs 17.54 lb and features a 100kA interrupting capacity at 240V AC for robust fault clearing. This breaker complies with industry standards for molded case circuit breakers and is suitable for 3-phase applications requiring reliable overload and short-circuit protection.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, LI (Long-Time and Instantaneous) trip
  • Voltage Rating: 240V AC
  • Current Rating: 300A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • AIC Rating: 100kA@240V
  • Weight: 17.54 lb
  • Family: MA Series
  • Type: MAY
  • Functions: LI - Long-Time and Instantaneous
  • Protection: Thermal Magnetic