S811+U50P3S Eaton Soft Starter

The Eaton S811+U50P3S is a premium soft starter for demanding three-phase motor applications, rated at 500 A and covering a 156–500 FLA range. It supports motors up to 400 hp at 480 V within a 200–600 V operating range at 47–63 Hz. This U-frame unit includes a digital interface module with LCD display, Modbus RTU communication, and 24 Vdc control supply. Connection options include inline or inside-the-delta wiring for adaptable installation arrangements. The starter is intended for use with HLD circuit breakers and Class RK5 or Class J fuses, supporting motor-protection configurations in industrial and retrofit installations. Its compact footprint suits space-conscious equipment integration.