The Model KBMD-240D, also called Multi-Drive™, is rated for 1/100 to 2 horsepower motors* and is an SCR drive housed in a NEMA 1 enclosure.It utilizes the KBMM speed control for its electronics. It handles both 115 and 208/230 Volt AC line inputs by setting the built-in Dual Voltage Switch. The single model can be used on a wide range of motor horsepower by inserting the appropriate Plug-In Horsepower Resistor®, which is required to operate this drive. It includes an AC line fuse and an Armature fuse holder.** This drive also contains Auto Inhibit® which provides a smooth, safe start during rapid switching of the AC line.