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Cutler-Hammer KD3400W - 400A Molded Case Circuit Breaker

Cutler Hammer
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The Cutler-Hammer KD3400W is a molded case circuit breaker designed to provide reliable overcurrent protection for three-phase industrial power distribution systems. It features a 400A current rating and a 600V voltage rating, housed within a compact K-frame design measuring 4.1" x 5.5" x 5.5" and weighing 11.42 lb. This thermal-magnetic, bolt-on breaker is UL Listed and offers an interrupting capacity of 35kA at 480V, utilizing long-time and instantaneous (LI) trip functions for coordinated protection. It is engineered for integration into panelboards and switchboards requiring robust 3-pole circuit protection.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection, Bolt-On Connection
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 4.1 in (D) x 5.5 in (H) x 5.5 in (W)
  • Standards: UL Listed
  • Applications: Industrial Power Distribution, Panelboards, Switchboards
  • Phase: 3
  • AIC Rating: 35kA @ 480V
  • Poles: 3
  • Protection: Thermal-Magnetic
  • Functions: Long-Time and Instantaneous (LI)
  • Frame Size: K Frame
  • Connection: Bolt-On
  • Weight: 11.42 lb
  • Family: Series C
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 786679341803
  • GTIN: 00786679341803