This page contains information about SSI-450/900-04 (63300) Instart smooth starting device ( SSI-450/900-04 ) with a detailed description of the technical characteristics . You can download documentation for SSI-450/900-04, series SSI from manufacturer Instart . Buy SSI450/90004 and seek technical advice. Our Engineers will help you choose and buy SSI-450/900-04 only high quality at affordable prices. Guarantee. SSI-450/900-04