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Cutler Hammer HKD3125 - Molded Case Circuit Breaker 125A 3P (65kA AIC)

Cutler Hammer
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Cutler Hammer HKD3125 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 125A continuous current rating and a 600V AC voltage rating, housed within a compact K-frame construction measuring 4.1" D x 5.5" H x 5.5" W and weighing 11.5 lb. This thermal-magnetic breaker is UL Listed and provides 65kA interrupting capacity at 480V AC, utilizing a feed-thru connection and long-time plus instantaneous (LI) trip functions for robust circuit protection. Its design is suited for integration into panelboards and switchboards requiring dependable branch circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, HKD Type
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 4.1 in (Depth) x 5.5 in (Height) x 5.5 in (Width)
  • Standards: UL Listed
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Amperage: 125A
  • AIC Rating: 65kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: K Frame
  • Trip Type: Thermal Magnetic
  • Breaker Type: Molded Case
  • Mounting: Panel Mount
  • Certification: UL Listed
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Screw
  • Standards: UL 489
  • Weight: 11.5 lb


Product Identification
  • UPC: 786679021019
  • GTIN: 00786679021019