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Cutler Hammer KDB3400 - Molded Case Circuit Breaker 400A 600V 3P

Cutler Hammer
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The Cutler Hammer KDB3400 is a molded case circuit breaker designed to provide reliable overcurrent protection for industrial power distribution systems. It features a 400A current rating and a 600V AC voltage rating, housed within a compact, durable K-frame construction measuring 4.1" x 5.5" x 5.5" and weighing 11.5 lb. This three-pole, feed-thru breaker is UL Listed and employs a thermal-magnetic trip mechanism offering both long-time and instantaneous trip functions to safeguard against overloads and short circuits. With an interrupting capacity of 35kA at 480V, it is engineered for demanding three-phase applications in commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • 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
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Amperage: 400A
  • AIC Rating: 35kA @ 480V
  • Connection: Feed-Thru
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • 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: 786679349397
  • GTIN: 00786679349397