Siemens Low Voltage Residential Generators Standby Power (Generators) - Generators: Accessories are Residential Enclosures Standby Power (Generators). Sub Brand: Standby Power Systems Type: Manual Transfer Interlock Kit Application: For use on load centers or meter combinations that will accept a QNR/MD-TR frame circuit breaker next to a 2-pole circuit breaker Standard: UL/NEMA 1/3R Amperage Rating: 225A Mounting: Flush or Surface Length: 1 Width: 3 Height: 3