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Westinghouse 1313531 - Molded Case 300A 600V 2-Pole

Westinghouse
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The Westinghouse LM Series 1313531 is a molded case circuit breaker designed for overcurrent protection in industrial power distribution systems. This 2-pole, 300A unit operates at a maximum voltage rating of 600V and provides a 22kA interrupting capacity at 480V, utilizing thermal-magnetic protection with long-time and instantaneous (LI) trip functions. The breaker features a bolt-on connection and weighs 65 lb, constructed for robust performance in single-phase applications. It complies with industry standards for molded case circuit breakers, ensuring reliable fault interruption and equipment safety. Typical applications include main or feeder protection in commercial and industrial electrical panels, motor control centers, and switchboards.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V
  • Current Rating: 300A
  • Poles: 2
  • Connection: Bolt-On
  • Protection: LI - Long-Time and Instantaneous
  • AIC Rating: 22kA@480V
  • Phase: 1
  • Weight: 65 lb
  • Family: LM Series
  • Functions: LI - Long-Time and Instantaneous


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