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Westinghouse MA3150S - Molded Case 150A 600V 3-Pole

Westinghouse
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Westinghouse MA3150S is a three-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 150A continuous current, and provides thermal-magnetic protection with long-time and instantaneous trip functions (LI). This bolt-on breaker weighs 54 lb and features a compact frame construction suitable for panelboard or switchboard installation. It complies with industry standards for short-circuit interruption, with an AIC rating of 30kA at 480V. Typical applications include motor control centers, lighting panels, and feeder circuits in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, MA Series, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 150A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 30kA@480V
  • Weight: 54 lb
  • Functions: LI - Long-Time and Instantaneous


Product Identification
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