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Westinghouse HKB21000TM - Magnetic Trip Unit 250A 600V

Westinghouse
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Westinghouse HKB21000TM Circuit Breaker is a magnetic-only trip unit designed for instantaneous overcurrent protection in industrial power distribution systems. It is rated for 600V AC and carries a current rating of 250A, with a minimum amperage of 250A and a maximum amperage of 250A. This 2-pole unit weighs 2 lb and is constructed as a trip unit and programmer within the MARK 75 family, compatible with KB and HKB frames. It complies with industry standards for magnetic protection, ensuring reliable fault interruption without thermal delay. Typical applications include motor control centers and switchgear requiring instantaneous trip response for short-circuit protection.

Key Features & Specifications
  • Type: Trip Unit & Programmer, Magnetic Only, Instantaneous (I) functions
  • Voltage Rating: 600V AC
  • Current Rating: 250A (Minimum: 250A, Maximum: 250A)
  • Dimensions: Not specified
  • Standards: Industry standard for magnetic protection
  • Applications: Industrial power distribution, motor control centers, switchgear
  • Switch Type: Not specified
  • Configuration: 2-pole
  • Coil Voltage Maximum: Not specified
  • Temp Rating: Not specified
  • Shipping Dimensions: Not specified
  • Phase: Not specified
  • Voltage: 600V
  • Amperage: 250A
  • AIC rating: Not specified
  • Connection: Not specified
  • Poles: 2
  • Protection: Magnetic Only
  • Functions: I - Instantaneous
  • Frame Size: Not specified
  • Trip Type: Instantaneous
  • Panel Type: Not specified
  • Breaker Type: Not specified
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Not specified
  • Hz: Not specified
  • Coil Material: Not specified
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not specified
  • Coil Voltage Minimum: Not specified
  • Wire: Not specified
  • Amperage Maximum: 250
  • Amperage Minimum: 250
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: Not specified
  • Certification: Not specified
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Not specified
  • Frequency Rating: Not specified
  • Phase Connection: Not specified
  • Standards: Not specified
  • Compatible Frames: KB, HKB
  • Installation Type: Not specified
  • Item QTY: Not specified
  • Nema Starter Size: Not specified
  • Breaker Frame: Not specified
  • Current Rating: 250A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: Not specified
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


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