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Westinghouse HKB3150 - Molded Case 150A 3-Pole (600V)

Westinghouse
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Westinghouse HKB3150 is a 3-pole molded case circuit breaker designed for overload and short-circuit protection in industrial power distribution systems. It is rated for 600V AC and 150A, with a thermal-magnetic trip mechanism providing long-time and instantaneous (LI) protection functions. This bolt-on unit weighs 19 lb and features load-side lug terminals for secure connections. It delivers an interrupting capacity of 25kA at 480V and is suitable for three-phase electrical systems. The HKB3150 is part of the MARK 75 family and complies with industry standards for reliable circuit protection in manufacturing, commercial, and heavy-duty environments.

Key Features & Specifications
  • Type: Molded Case
  • Family: MARK 75
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Current Rating: 150A
  • Poles: 3
  • Phase: 3
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC Rating: 25kA @ 480V
  • Weight: 19 lb
  • Terminal Type: Load Side Lugs