26X26MM SQUARE PLASTIC ACTUATOR: RONIS LOCK WITH 2 KEYS MAINTAINED CONTACT 2 SWITCH POSITIONS O-I LOCK NUMBER SB30, REMOVE I WITH HOLDER POSSIBLE SPECIAL LOCKS FOR RONIS KEYSWITCHES: SB31, 455, 421 !!! Phased-out product !!! SIRIUS ACT 3SU1 is suc Preferred successor ty >>3SU1000-4BF21-0AA0 + 3SU1500-0AA10-0AA0 + 3SU1900-0AX10-0AA0<<