Siemens Low Voltage Residential Generators Standby Power (Generators) - Generators SL Type TS 3-Phase 120/208v are Residential Enclosures Standby Power (Generators). Sub Brand Standby Power Systems Type SL Type Transfer Switches Special Features No Service Disconnect Application To swtich power source from utility to gerneator automatically in outage situation Standard NEMA 3R Voltage Rating 120/208V Amperage Rating 400A Phase 3P Enclosure Steel Mounting Mounted to EnclosureLength 10 Width 22 Height 25