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Cutler-Hammer KD4125 - 125A Molded Case Circuit Breaker (600V, 4-Pole)

Cutler Hammer
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The Cutler-Hammer KD4125 is a molded case circuit breaker designed to provide reliable overcurrent protection for three-phase industrial power distribution systems. It features a 125A current rating and a 600V AC voltage rating, housed within a compact K-frame measuring 4.1" x 5.5" x 5.5" and weighing 11.5 lb. This four-pole, feed-thru connection breaker utilizes a thermal-magnetic trip mechanism for both long-time and instantaneous (LI) protection and is UL Listed, offering an interrupting capacity of 35kA at 480V AC. It is engineered for integration into panelboards and switchboards within commercial and industrial facilities requiring robust circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, KD Type, Series C Family
  • 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
  • Phase: 3
  • AIC Rating: 35kA @ 480V AC
  • Connection: Feed-Thru
  • Poles: 4
  • Protection: Thermal Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: K Frame
  • Weight: 11.5 lb
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 786679045206
  • GTIN: 00786679045206