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Westinghouse HKB3700TM - Magnetic Trip Unit 250A 600V 3-Pole

Westinghouse
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The Westinghouse HKB3700TM is a magnetic-only circuit breaker trip unit designed for instantaneous overcurrent protection in industrial power distribution systems. It operates at a voltage rating of 600V and supports a current range of 250A minimum to 250A maximum, providing precise short-circuit interruption without thermal delay. This three-pole unit weighs 2 lb and is constructed for compatibility with KB and HKB frame circuit breakers, featuring a compact design for panel integration. It complies with industry standards for magnetic protection, ensuring reliable performance in high-fault environments. Typical applications include motor control centers, switchboards, and industrial machinery requiring instantaneous trip response.

Key Features & Specifications
  • Type: Magnetic Only Trip Unit
  • Voltage Rating: 600V
  • Current Rating: 250A (Minimum: 250A, Maximum: 250A)
  • Poles: 3
  • Functions: I - Instantaneous
  • Protection: Magnetic Only
  • Compatible Frames: KB, HKB
  • Weight: 2 lb
  • Family: MARK 75
  • Item Subcategory: Trip Units & Programmers


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