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Westinghouse MCP431550CR - MCP 150A 3-Pole 600V

Westinghouse
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Westinghouse MCP431550CR is a 150A, 3-pole motor circuit protector (MCP) from the MCP Series, designed for instantaneous short-circuit protection of motor circuits. This magnetic-only molded case circuit breaker is rated for 600V AC and 250V DC, with a high interrupting capacity of 65kA at 480V, and features a bolt-on connection for secure panel mounting. Weighing 5 lb, it utilizes a fixed magnetic trip unit without overload protection, requiring separate motor starters with heater overloads for complete motor protection. The unit is UL listed and complies with industry standards for demanding industrial environments. It is typically applied in industrial panel mounting configurations for three-phase motor circuit protection where only short-circuit interruption is needed.

Key Features & Specifications
  • Type: MCP
  • Manufacturer: Westinghouse
  • Part Number: MCP431550CR
  • Amperage: 150A
  • Voltage Rating: 600V AC, 250V DC
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Mounting Type: Panel mount
  • Protection: Magnetic Only
  • Functions: I - Instantaneous
  • Trip Unit: Magnetic only, fixed trip
  • AIC rating: 65kA@480V
  • Series/Frame: F Frame (MCP)
  • Weight: 5 lb
  • Certifications: UL listed
  • Application: Motor circuit protection (short-circuit only)
  • Item Subcategory: Molded Case
  • Family: MCP Series