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Westinghouse MA3450S - Molded Case Breaker 450A 600V

Westinghouse
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The Westinghouse MA3450S is a three-pole molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. It provides LI (Long-Time and Instantaneous) protection functions with a 600V voltage rating and a 450A current rating, utilizing thermal magnetic trip technology for reliable fault interruption. This bolt-on breaker weighs 54 lb and features a compact molded case construction suitable for panelboard or switchboard installation. It complies with industry standards for safety and performance, including a 30kA interrupting capacity at 480V. Typical applications include protecting feeders, motors, and transformers in commercial and industrial electrical systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V
  • Current Rating: 450A
  • Poles: 3
  • Phase: 3
  • AIC Rating: 30kA@480V
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • Weight: 54 lb
  • Family: MA Series
  • Item Subcategory: Molded Case


Product Identification
  • UPC: Not available
  • GTIN: Not available