ms303ms303-ds 30 Amp, 600 Volt, Three-Pole, Three Phase AC Manual Motor Controller, Suitable as Motor Disconnect, Toggle, Industrial Grade, Non-Grounding, Back & Side WiringDescription Leviton, MS303-DS, AC Motor Starter Switch, Industrial Grade Manual Non-Grounding, 600 VAC, 30 A, 20 hp Power, TPST Contact Confuration, 30 A at 600