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Westinghouse NB21000 - Molded Case 1000A 600V 2-Pole

Westinghouse
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Westinghouse NB21000 Circuit Breaker - Molded Case 1000A 600V 2-Pole Thermal Magnetic The Westinghouse NB21000 is a 2-pole molded case circuit breaker from the NB Series, designed to provide overcurrent protection through long-time and instantaneous (LI) trip functions. It is rated for 600V AC, 1000A continuous current, with an interrupting capacity of 30kA at 480V, and utilizes a thermal magnetic protection mechanism. This bolt-on unit weighs 53 lb and is constructed for single-phase applications, featuring a compact molded case frame. The breaker complies with industry standards for industrial power distribution and motor control circuits. It is typically applied in commercial and industrial switchboards, panelboards, and distribution systems requiring high-current protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, NB Series
  • Voltage Rating: 600V AC
  • Current Rating: 1000A
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 30kA@480V
  • Phase: 1
  • Functions: LI - Long-Time and Instantaneous
  • Weight: 53 lb


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