8536SBO2V02S - Square D 18 Amp 3 Pole 600 Volt Electric Motor Starter. Square D, Class 8536, motor starter, type SBO, 3P, 3PH, 18A, 600V with 120V 60Hz / 110V 50Hz coil, NEMA size 0, open type. UL Listed and CSA Certified. Dimensions (H x W x L): 6.81" x 3.50" x 4.22.