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Cutler Hammer KT3400TA - Thermal Magnetic 400A 600VAC

Cutler Hammer
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Cutler Hammer KT3400TA is a Series C thermal magnetic circuit breaker designed for overcurrent protection in industrial power distribution systems. This 3-pole unit is rated for 400A continuous current at 600VAC, providing LI (Long Time and Instantaneous) trip functions for coordinated fault protection. The compact molded case measures 180.34 mm x 137.16 mm x 106.68 mm (Length/Depth x Height x Width) and weighs 1.92 lb, featuring a robust construction compatible with KT frames. It complies with RoHS standards and holds UL and IEC certifications for global industrial applications. This breaker is typically used in switchboards, panelboards, and motor control centers requiring reliable thermal-magnetic protection for feeders and branch circuits.

Key Features & Specifications
  • Type: Thermal Magnetic
  • Voltage Rating: 600VAC
  • Current Rating: 400A
  • Dimensions: 180.34 mm x 137.16 mm x 106.68 mm (Length/Depth x Height x Width)
  • Standards: RoHS
  • Applications: Industrial power distribution, switchboards, panelboards, motor control centers
  • Poles: 3
  • Protection: LI - Long Time and Instantaneous Trip
  • Certification: UL, IEC
  • Compatible Frames: KT
  • Amperage Minimum: 400
  • Amperage Maximum: 400
  • Family: Series C
  • Type: C
  • Functions: LI - Long Time and Instantaneous Trip


Product Identification
  • UPC: 078667926619
  • GTIN: 00786679266199