Softstarter, 150 SMC-50 Controller, Open, 317 Amp, 100 - 240 Volt AC (2 x 24 Volt DC Inputs, 2 Relay Outputs), 200 - 480 Volt AC, 3-Phase, with Internal BypassThe SMC-50 controller has a scalable design, allowing you the flexibility to satisfy a wide variety of control needs. Advanced monitoring and protection, superior communications capabilities, and Energy Saver mode help increase efficiency and reduce downtime. Three-phase control, built-in overload, removable control module and removable terminal blocks are combined in a cost-effective package with your choice of internal bypass or solid-state power structures. Normal- and heavy-duty ratings, expandable I/O and sensor capability, LCD screen or personal computer software setup and network integration capabilities increase application scalability