TC KDRA3H Drive Reactor

The TC KDRA3H Drive Reactor is a 3‑phase, 480 V AC line reactor designed to mitigate harmonic distortion, dampen voltage transients, and protect motors and drive electronics in variable frequency drive (VFD) systems. This 8 A, 5 HP reactor features a 5% impedance (high Z) and is offered in an open-type enclosure with panel-mount installation, suitable for industrial electrical and motor control panels. It is UL Listed and manufactured by TC (Rockwell Automation) under the part number KDRA3H. In practical applications, it supports motor control centers, conveyor systems, pumps, compressors, HVAC equipment, and other industrial automation machinery where power quality, harmonics mitigation, and motor protection are essential. A common replacement in legacy or retrofit projects is the TC 1321-3R8-B line reactor, reflecting compatibility with similar VFD protection and harmonic control roles. This drive reactor is used to improve power quality in industrial automation environments that rely on 3‑phase VFD systems, helping to safeguard equipment and maintain stable operation in demanding manufacturing settings.