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Westinghouse MA Series MAY - 500A 3-Pole Molded Case Circuit Breaker

Westinghouse
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Westinghouse MA Series MAY is a 3-pole molded case circuit breaker designed for thermal magnetic protection with long-time and instantaneous (LI) trip functions. It is rated for 240V AC, 500A continuous current, and delivers a 100kA interrupting capacity at 240V. The unit weighs 26.71 lb and features a bolt-on connection configuration for secure panel mounting. This breaker complies with industry standards for industrial power distribution and motor branch circuit protection. It is typically applied in switchboards, panelboards, and commercial or light industrial feeder circuits requiring high fault current withstand.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, LI (Long-Time and Instantaneous)
  • Voltage Rating: 240V AC
  • Current Rating: 500A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 100kA@240V
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Family: MA Series
  • Type: MAY
  • Weight: 26.71 lb
  • Item Subcategory: Molded Case