For emergency power in buildings, auto transfer switch (ATS) is essential. ATS can automatically transfer load from main power to emergency power without operator operation. When the main power fails or voltage drop below 80% of normal voltage, the ATS will start emergency generator set after a preset time of 0 to 10 seconds (adjustable). At rated speed, the ATS will transfer load to emergency power with available size ranging from 40A to 4000A. There is a SWT switch that suits every project's need.Features: 1) With an industry class MPU as the kernel, do an across-the-boardsurveillance to the voltage and frequency of the main power2) SOCOMEC 4 poles auto transfer switch from France, with mechanical lockand electric lock3) Good quality,good appearance4) Long life and liable LED pilot lamp

the following table is our standard specification.