S811+V72N3S Eaton Soft Starter

The Eaton S811+V72N3S is a soft starter intended for demanding three-phase motor control applications. Housed in a 290 mm V-frame, this standard unit accepts an inside-the-delta connection and offers either a 30-second ramp or a 450% current limit at 50°C for controlled motor acceleration. Its power ratings are 257 kW at 230 V, 475 kW at 380–400 V, and 500 kW at 440 V. The 850A rating identifies its high-current capacity for industrial motor installations. As a member of the S811+ intelligent soft starter family, the unit combines a compact design, simplified retrofit capability, and advanced motor protection features.