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1310879

Westinghouse
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Westinghouse 1310879 Circuit Breaker - Molded Case 90A 3-Pole 600V The Westinghouse 1310879 is a K Series molded case circuit breaker designed for overcurrent protection and load switching in power distribution systems. This three-pole unit is rated for 600V AC with a continuous current rating of 90A and an interrupting capacity of 22kA at 480V, utilizing thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. The breaker features a bolt-on connection type and weighs 48 lb, with a durable molded case construction that supports interchangeable trip units for field customization. It complies with industry standards for branch circuit and feeder protection in industrial and commercial electrical installations. Typical applications include general purpose feeder circuits, branch circuit protection, and load switching in 600V AC power systems.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Item Subcategory: Molded Case
  • Family: K Series
  • Type: K
  • Weight: 48 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V AC
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 22kA@480V
  • Phase: 3
  • Current Rating: 90A
  • Mounting Type: Bolt-On
  • Case Style: Molded Case
  • Trip Unit: Interchangeable


Product ID: 1310879