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Westinghouse HKB3090T - Thermal Magnetic Trip Unit 90A 600V 3-Pole

Westinghouse
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Westinghouse HKB3090T is a thermal magnetic circuit breaker trip unit designed for providing reliable overcurrent protection in industrial power distribution systems. It operates with a 600V AC voltage rating and a fixed 90A current rating, featuring a three-pole configuration within a compact 90-frame size. The unit utilizes a combined long-time and instantaneous (LI) tripping function to safeguard against both sustained overloads and short-circuit faults. It complies with relevant industry standards for electrical protection devices and is engineered for integration into compatible KB and HKB breaker frames, making it suitable for panelboards, switchboards, and motor control centers.

Key Features & Specifications
  • Type: Thermal Magnetic Trip Unit, Long-Time and Instantaneous (LI) Protection
  • Voltage Rating: 600V AC
  • Current Rating: 90A
  • Poles: 3
  • Frame Size: 90
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Compatible Frames: KB, HKB
  • Family: MARK 75
  • Item Subcategory: Trip Units & Programmers
  • Weight: 2 lb


Product Identification
  • Manufacturer Part Number: HKB3090T