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Westinghouse NB2900T - Thermal Magnetic Trip Unit 600V 900A

Westinghouse
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Westinghouse NB2900T is a thermal magnetic trip unit designed for overcurrent protection in industrial circuit breaker systems. It provides LI (Long-Time and Instantaneous) protection functions with a voltage rating of 600V and an adjustable amperage range from 900A minimum to 900A maximum. The unit weighs 3 lb and is configured for 2-pole operation, compatible with NB, HNB, and NBY breaker frames. This trip unit complies with industry standards for thermal magnetic protection, ensuring reliable performance in demanding environments. It is typically applied in industrial power distribution systems requiring precise long-time and instantaneous trip coordination.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 900A
  • Poles: 2
  • Functions: LI - Long-Time and Instantaneous
  • Protection: Thermal Magnetic
  • Compatible Frames: NB, HNB, NBY
  • Weight: 3 lb
  • Amperage Minimum: 900
  • Amperage Maximum: 900


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