Square D by Schneider Electric HOMRBGK2C Homeline Outdoor Cover Generator and QOM2 Frame Size Main Breaker Interlock Kit Use to interlock the QOM1 or QOM2 main breaker with a 2-pole breaker back fed from a generator Helps eliminate the need for a separate generator panel For use on outdoor Homeline 150A - 225A Main Breaker Load Centers Includes an interlock bracket, retaining bracket, 1-hole drilling template, 3 hex nuts, (3) 10 - 32 shoulder screws and (1) interior mounting screw