- Installation way: mobile, surface mounted, concealed;

- Whether the socket is equipped with protection device: no protection device, with fuse, with miniature circuit breaker;

- Whether the socket is equipped with interlocking device: no interlock, mechanical interlock, electrical interlock;

- Whether the socket has a safety transformer: no transformer, with transformer; 

-Operating temperature: -30℃~+60℃，the highest up to +80℃: 

-Rated voltage: 20V~25V、40V~50V、100V~130V、200V~250V、380V~415V、480V~500V、600V~690V； 

-Rated frequency: 50/60Hz、100Hz、300Hz、300-500Hz； 

-Rated currency: 16A、32A、63A、125A、200A、250A、400A； 

-Poles: 2P、2P+PE、3P+PE、3P+N+PE； 

-Point location: 2h、3h、4h、5h、6h、7h、8h、9h、10h、11h；

-Protection grade: IP44、IP67.