Cutler Hammer KD3400VWS42 - 400A 3-Pole Molded Case Breaker (600V AC)
Cutler Hammer KD3400VWS42 - 400A 3-Pole Molded Case Breaker (600V AC)

Cutler Hammer KD3400VWS42 - 400A 3-Pole Molded Case Breaker (600V AC)

Cutler Hammer
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Cutler Hammer KD3400VWS42 is a heavy-duty molded case circuit breaker designed for overcurrent and short-circuit protection in industrial power distribution systems. This three-pole unit is rated for 400 amps at 600 volts AC, with a high interrupting capacity of 65 kAIC at 480V AC, and features a compact frame size of 4.1 inches in depth, 5.5 inches in height, and 5.5 inches in width, weighing 11.5 lb. Constructed with a robust thermoplastic housing and a thermal-magnetic trip mechanism, it offers reliable protection against both overloads and faults. The breaker complies with UL 489 and CSA C22.2 standards, ensuring safe operation in demanding environments. Typical applications include main or feeder protection in switchboards, panelboards, and motor control centers within manufacturing plants, commercial buildings, and utility substations.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, thermal-magnetic trip, thermoplastic housing
  • 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, CSA C22.2
  • Applications: Industrial power distribution, switchboards, panelboards, motor control centers
  • Switch Type: Circuit breaker
  • Configuration: Three-pole
  • 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: Three-phase
  • Voltage: 600V AC
  • Amperage: 400A
  • AIC rating: 65 kAIC at 480V AC
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overcurrent and short-circuit
  • Functions: Overload and fault protection
  • Frame Size: 400A frame
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: 500 kcmil max
  • Metal Type: Copper or aluminum lugs
  • Panel Style: Standard
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 75°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-on
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 400A
  • Dist Voltage: 600V AC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 400A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 400A
  • Amperage Minimum: 0A
  • Nema Rating: Not specified
  • Switch Style: Not applicable
  • Wire Size: 500 kcmil max
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: Cutler Hammer CH series
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 400A
  • 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: 78211603236
  • GTIN: 00782116032365