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Eaton Cutler Hammer KDC3400T57WPN - 400A 3-Pole Molded Case Breaker

Cutler Hammer
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Eaton Cutler Hammer KDC3400T57WPN is a 3-pole molded case circuit breaker designed for thermal magnetic protection in industrial power distribution systems. It is rated for 600V AC, 400A continuous current, and provides LI (Long-Time and Instantaneous) trip functions with an AIC rating of 100kA at 480V. The unit measures 4.1 inches in depth, 5.5 inches in height, and 5.5 inches in width, weighing 3 lb, and is constructed without lugs for field-installable wiring connections. This breaker complies with applicable UL and NEMA standards for overcurrent protection in three-phase systems. Typical applications include main or feeder protection in switchboards, panelboards, and industrial control panels.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, Thermal Magnetic
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 4.1 in x 5.5 in x 5.5 in (Length/Depth x Height x Width)
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial power distribution, main or feeder protection
  • Switch Type: Non-fusible
  • Configuration: Fixed mount
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 4.1 in x 5.5 in x 5.5 in
  • Phase: 3
  • Voltage: 600V
  • Amperage: 400A
  • AIC rating: 100kA@480V
  • Connection: Line and load terminals (lugs not included)
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: KDC
  • Trip Type: Thermal magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Fixed
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not specified
  • Amperage Maximum: 400A
  • Amperage Minimum: 70A
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: Not specified
  • Certification: UL
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Line and load
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489
  • Compatible Frames: KDC
  • Installation Type: Panelboard or switchboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: KDC
  • Current Rating: 400A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 078211352898