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Cutler Hammer HKB3125T - Thermal Magnetic Breaker 125A 600V 3P

Cutler Hammer
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The Cutler Hammer HKB3125T is a three-pole thermal magnetic circuit breaker designed to provide reliable overcurrent protection for industrial power distribution systems. It features a 600V AC voltage rating and a fixed 125A current rating, delivering both long-time delay and instantaneous short-circuit protection through its LI trip function. This unit is constructed for durability with a compact design, weighing 2 lb, and is engineered for straightforward installation into compatible KB and HKB panel frames. It complies with relevant industry standards for circuit protection devices and is typically applied in industrial facilities, manufacturing plants, and commercial buildings to safeguard feeder and branch circuits.

Key Features & Specifications
  • Type: Thermal Magnetic Circuit Breaker, Trip Unit
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Poles: 3
  • Protection: Thermal Magnetic
  • Trip Functions: LI (Long-Time and Instantaneous)
  • Compatible Frames: KB, HKB
  • Family: MARK 75
  • Weight: 2 lb