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Westinghouse NB21200WK - Molded Case 1200A (2-Pole, 600V)

Westinghouse
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Westinghouse NB21200WK is a molded case circuit breaker designed for use as a non-automatic switch providing no overcurrent protection in industrial power distribution systems. This 2-pole device is rated for 1200A at a maximum voltage of 600V and features a high interrupting capacity of 30kA at 480V. The unit weighs 53 lb and utilizes a bolt-on connection for secure mounting in panelboards or switchboards. It is built on the NB Series frame and is suitable for single-phase applications requiring reliable circuit isolation. Typical applications include use as a main disconnect or feeder switch in commercial and industrial electrical systems.

Key Features & Specifications
  • Manufacturer: Westinghouse
  • Item Subcategory: Molded Case
  • Family: NB Series
  • Type: NB
  • Weight: 53 lb
  • Functions: NA - No Overcurrent Protection
  • Voltage Rating: 600V
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Non-Automatic
  • AIC rating: 30kA@480V
  • Phase: 1
  • Current Rating: 1200A
  • Part Number: NB21200WK
  • Series/Frame: NB Series
  • Type: Molded Case Circuit Breaker
  • Trip Unit: Thermal Magnetic
  • Mounting Type: Panelboard/Switchboard


NB21200WK