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Cutler Hammer KDB3300 - Molded Case Circuit Breaker 300A 600V 3P

Cutler Hammer
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Cutler Hammer KDB3300 is a molded case circuit breaker designed for providing reliable overcurrent protection in three-phase industrial power distribution systems. It features a 300A 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. The breaker is UL Listed and employs a thermal-magnetic trip unit with long-time and instantaneous functions, offering a 35kA interrupting capacity at 480V for robust short-circuit protection. Its feed-thru connection and construction suitable for operation from -25°C to 70°C make it applicable for a range of industrial panelboards and switchgear.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 300A
  • Dimensions: 4.1 in (D) x 5.5 in (H) x 5.5 in (W)
  • Standards: UL Listed
  • Applications: Industrial Power Distribution, Panelboards, Switchgear
  • Switch Type: Circuit Breaker
  • Configuration: Fixed
  • Phase: 3
  • Poles: 3
  • AIC Rating: 35kA @ 480V AC
  • Connection: Feed-Thru
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: K Frame
  • Trip Type: Thermal Magnetic
  • Temp Rating: -25°C to 70°C (-13°F to 158°F)
  • Weight: 11.5 lb
  • Family: Series C
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 786679349373
  • GTIN: 00786679349373