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NB31200FS

Westinghouse
Price
Save $-3,693.67
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Westinghouse NB31200FS is a 3-pole, 1200A molded case circuit breaker frame designed for overcurrent protection in industrial power distribution systems. It operates at 600V AC with a 30kA interrupting capacity at 480V, utilizing thermal magnetic protection with LI (Long-Time and Instantaneous) trip functions. This bolt-on unit weighs 42 lb and is supplied as a frame only, requiring separate lugs and a trip unit for full operation. It complies with industry standards for molded case circuit breakers in commercial and industrial environments. Typical applications include main switchboards, distribution panels, and heavy machinery protection in manufacturing and utility settings.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Item Subcategory: Molded Case
  • Family: NB Series
  • Type: NB
  • Weight: 42 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 30kA@480V
  • Phase: 3
  • Current Rating: 1200A
  • Additional Info: This item is Frame only as defined by the part number. That means it is only the circuit breaker frame, and no lugs or trip unit is included with the frame.


Westinghouse NB31200FS - Molded Case Circuit Breaker 1200A 600V