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Westinghouse HKA2125W - 125A 2-Pole Molded Case Breaker (600V)

Westinghouse
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Westinghouse HKA2125W is a 2-pole molded case circuit breaker designed for overcurrent and short-circuit protection in industrial and commercial power distribution systems. It is rated for 600V AC and 125A, with a thermal-magnetic trip unit providing long-time and instantaneous (LI) protection functions. This bolt-on breaker weighs 17 lb and is part of the MARK 75 family, featuring a compact molded case frame for panelboard installation. It delivers an interrupting capacity of 35kA at 480V AC, meeting rigorous safety and performance standards for demanding electrical environments. The HKA2125W is suited for single-phase applications requiring reliable, fixed thermal-magnetic protection.

Key Features & Specifications
  • Type: Molded Case
  • Manufacturer: Westinghouse
  • Family: MARK 75
  • Type: HKA
  • Weight: 17 lb
  • Functions: LI - Long-Time and Instantaneous
  • Voltage Rating: 600V
  • Poles: 2
  • Connection: Bolt-On
  • Protection: Thermal Magnetic
  • AIC rating: 35kA@480V
  • Phase: 1
  • Current Rating: 125A
  • Amperage Rating: 125A
  • Voltage Rating: 600V AC
  • Mounting Type: Bolt-On
  • Interrupt Rating (AIC): 35kA at 480V
  • Series: MARK 75
  • Trip Unit: Thermal-Magnetic Fixed
  • Frame Size: Molded Case