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Westinghouse HKB21250TM - Trip Unit 600V 250A 2-Pole

Westinghouse
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Westinghouse HKB21250TM Circuit Breaker - Trip Unit & Programmer 600V 250A 2-Pole (Magnetic Only) The Westinghouse HKB21250TM is a magnetic-only trip unit and programmer designed for instantaneous overcurrent protection in industrial circuit breaker applications. This unit is rated for 600V AC with a current range of 250A minimum to 250A maximum, operating across 2 poles to provide precise fault interruption. Weighing 2 lb, it features a compact construction compatible with KB and HKB frames, utilizing a magnetic-only protection mechanism for high-speed response. The device complies with industry standards for industrial power distribution and motor control systems. It is typically used in manufacturing plants, heavy machinery, and commercial electrical panels requiring reliable short-circuit protection without thermal delay.

Key Features & Specifications
  • Type: Trip Unit & Programmer, Magnetic Only, Instantaneous (I) Functions
  • Voltage Rating: 600V AC
  • Current Rating: 250A (Minimum 250A, Maximum 250A)
  • Poles: 2
  • Protection: Magnetic Only
  • Compatible Frames: KB, HKB
  • Family: MARK 75
  • Weight: 2 lb
  • Functions: I - Instantaneous
  • Item Subcategory: Trip Units & Programmers


Product Identification
  • UPC: Not specified
  • GTIN: Not specified