• SCR drive in a NEMA-1 enclosure. • Handles both 115 and 230VAC line inputs by setting the built-in Dual Voltage Switch. • The Auxiliary Heatsink (optional) increases the rating of the basic unit. • Forward-Brake-Reverse Switch Kit included. • Dimensions: 5.10" x 7.20" x 4.10" • Line fuse: supplied • Resistor and armature fuse: Required