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Cutler Hammer DK3400KZ02 - 400A 3-Pole Circuit Breaker

Cutler Hammer
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Cutler Hammer DK3400KZ02 is a molded case circuit breaker designed for overcurrent protection and switching in industrial power distribution systems. It is rated for 600V AC and 400A continuous current, providing reliable fault interruption. The unit measures 4.1 inches in depth, 5.5 inches in height, and 5.5 inches in width, weighing 11.5 lb, with a robust thermoplastic housing. It complies with UL 489 and NEMA standards for safety and performance. This breaker is typically applied in panelboards, switchboards, and motor control centers for commercial and industrial facilities.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, fixed thermal and magnetic settings
  • 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)
  • Weight: 11.5 lb
  • Standards: UL 489, NEMA AB1
  • Applications: Panelboards, switchboards, motor control centers
  • Poles: 3
  • Frame Size: K
  • Trip Type: Thermal-magnetic
  • Breaker Type: Fixed mount, non-interchangeable trip
  • Connection: Line and load side lugs
  • Phase: 3
  • Hz: 50/60
  • AIC Rating: 65kA at 240V AC, 35kA at 480V AC, 25kA at 600V AC
  • Enclosure: Open style, no enclosure
  • Circuit Breaker Mounting Style: Fixed
  • Terminal Connection: Copper or aluminum lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, NEMA AB1, CSA C22.2
  • Installation Type: Panelboard or switchboard
  • Item QTY: 1
  • Breaker Frame: K-Frame
  • Current Rating: 400A
  • Operating Temperature Maximum Celsius: 40°C


Product Identification
  • UPC: 078667919447
  • GTIN: 00786679194478