Siemens Low Voltage Residential Generators Standby Power (Generators) - Generators Accessories are Residential Enclosures Standby Power (Generators). Sub BrandStandby Power Systems Type Manual Transfer Interlock Kit Application For use on20 space over/under OH/UG feed meter combinations Standard UL/NEMA 1/3R Amperage Rating 225A Mounting Flush or Surface Length 1.2 Width 4.5 Height 9.7