Cutler Hammer DK3300 - 300A Molded Case Breaker (65kA AIC)
Cutler Hammer DK3300 - 300A Molded Case Breaker (65kA AIC)
Cutler Hammer DK3300 - 300A Molded Case Breaker (65kA AIC)
Cutler Hammer DK3300 - 300A Molded Case Breaker (65kA AIC)

Cutler Hammer DK3300 - 300A Molded Case Breaker (65kA AIC)

Cutler Hammer
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Cutler Hammer DK3300 is a molded case circuit breaker designed for providing reliable overcurrent and short-circuit protection in industrial power distribution systems. It features a 300A current rating and a 240V voltage rating, housed within a compact 400A frame with dimensions of 4.1 in (D) x 5.5 in (H) x 5.5 in (W) and a weight of 11.5 lb. The breaker is CSA Certified, IEC Rated, and UL Listed, ensuring compliance with key industry standards for safety and performance. Its thermal-magnetic protection with long-time and instantaneous (LI) tripping functions makes it suitable for integration into motor control centers (MCCs), switchboards, and enclosed controls from major manufacturers like Allen-Bradley, Eaton, and Rockwell Automation.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard Type, Thermal-Magnetic Protection
  • Voltage Rating: 240V AC
  • Current Rating: 300A
  • Frame Size: 400A/K
  • AIC Rating: 65kA @ 240V
  • Poles: 3
  • Phase: 3-Phase
  • Connection: Feed-Thru with Line/Load Lug Terminal
  • Functions: LI (Long-Time and Instantaneous)
  • Dimensions: 4.1 in (Depth) x 5.5 in (Height) x 5.5 in (Width)
  • Weight: 11.5 lb
  • Temp Rating: -4°F to 158°F (-20°C to 70°C)
  • MCM Wire Size: 400 MCM (Min) to 500 MCM (Max)
  • Standards & Certification: CSA Certified, IEC Rated, UL Listed
  • Panel Compatibility: Allen Bradley MCC, Eaton MCC, Rockwell Automation Enclosed Control, Switchboard, Westinghouse
  • Family: Series C
  • Country of Origin: Dominican Republic


Product Identification
  • UPC: 786679044131
  • GTIN: 00786679044131