Type S NEMA motor starters are used for full voltage starting and stopping of AC squirrel cage motors. Type S motor starters have ratings up to 810 amperes. This 3 pole NEMA Size 4 non-reversing starter has a 135 ampere rating. This NEMA Size 4 motor starter has 3 phase ratings of 40 HP at 200 VAC, 50 HP at 230 VAC and 100 HP at 460 and 575 VAC. This non-reversing NEMA motor starter has a melting alloy type overload relay that uses Type CC thermal units to sense over current conditions. This NEMA starter has a 10 kA maximum SCCR (Short Circuit Current Rating) per UL508A when protected by an appropriate circuit breaker or fuse. Type S motor starters are available with replaceable coils in a wide variety of voltages. This starter has a 440/480 VAC 50/60 Hz operating coil wired for common control. A painted sheet steel NEMA 12/3R dusttight and driptight industrial use enclosure is used to protect this starter. Enclosure is 31.50 inches tall, 18.16 inches wide and 9.56 inches deep. A wide variety of accessories are available for Type S starters. Type S non-reversing NEMA motor starters are UL listed and CSA certified.