Cutler Hammer KPRL4LAP - 3-Pole 400A 600V AC Circuit Breaker
Cutler Hammer KPRL4LAP - 3-Pole 400A 600V AC Circuit Breaker

Cutler Hammer KPRL4LAP - 3-Pole 400A 600V AC Circuit Breaker

Cutler Hammer
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Cutler Hammer KPRL4LAP is a heavy-duty industrial circuit breaker designed for primary overcurrent and short-circuit protection in power distribution systems. It is rated for 600V AC and carries a continuous current rating of 400A, with a robust interrupting capacity suitable for high-fault applications. The unit measures 9 inches in depth, 4 inches in height, and 2 inches in width, weighing 6 lb, and features a compact molded case construction with a thermal-magnetic trip mechanism. This breaker complies with UL 489 and NEMA AB-1 standards, ensuring reliable performance in demanding environments. It is commonly deployed in commercial and industrial switchboards, panelboards, and motor control centers for branch circuit and feeder protection.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 400A
  • Dimensions: 9 in x 4 in x 2 in (Length/Depth x Height x Width)
  • Weight: 6 lb
  • Standards: UL 489, NEMA AB-1
  • Applications: Industrial switchboards, panelboards, motor control centers
  • Breaker Type: KPRL4LAP
  • Frame Size: K-Frame
  • Trip Type: Thermal-magnetic
  • Poles: 3-pole
  • Phase: 3-phase
  • Connection: Line and load terminals
  • Protection: Overcurrent and short-circuit
  • AIC Rating: 65kA at 240V AC
  • Frequency Rating: 50/60 Hz
  • Installation Type: Fixed or plug-in
  • Circuit Breaker Mounting Style: Panel mount
  • Terminal Connection: Copper or aluminum
  • Wire Size: #14 AWG to 600 MCM
  • Insulation Temperature: 75°C
  • Operating Temperature Maximum Celsius: 40°C
  • Enclosure: Open type


Product Identification
  • UPC: 78211488753
  • GTIN: 00782114887530