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Eaton Cutler-Hammer LD3400 - Molded Case Circuit Breaker 400A 600V

Cutler Hammer
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The Eaton Cutler-Hammer LD3400 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 voltage rating, housed within a compact 600A/L frame measuring 4.06" D x 8.25" H x 8.25" W and weighing 20.05 lb. This three-pole, thermal-magnetic breaker is CSA Certified, IEC Rated, and UL Listed, ensuring compliance with key industry standards for integration into Allen Bradley MCCs, Eaton MCCs, switchboards, and other industrial panel types. Its 35kA interrupting rating at 480V and feed-thru connection with line/load lugs make it suitable for protecting circuits with wire sizes from 400 to 500 MCM in demanding three-phase applications.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Standard, Thermal Magnetic Protection with LI (Long-Time & Instantaneous) Trip Functions
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Frame Size: 600A/L
  • Poles: 3
  • Phase Connection: ABC
  • AIC Rating: 35kA @ 480V
  • Connection: Feed-Thru
  • Terminal Connection: Line/Load Lug
  • MCM Wire Size Range: 400 MCM (Min) to 500 MCM (Max)
  • Dimensions: 4.06 in (Depth) x 8.25 in (Height) x 8.25 in (Width)
  • Weight: 20.05 lb
  • Operating Temperature Range: -4°F to 158°F (-20°C to 70°C)
  • Standards & Certification: CSA Certified, IEC Rated, UL Listed
  • Compatible Panel Types: Allen Bradley MCC, Eaton MCC, Rockwell Automation Enclosed Control, Switchboard, Westinghouse
  • Family: Series C
  • Country of Origin: United States


Product Identification
  • UPC: 786679013038
  • GTIN: 00786679013038