The ComPact INS and INV switches are switch-disconnectors with rotary actuator. All ComPact INS/INV switch-disconnectors are suitable for disconnection as defined in the standards IEC 60947-1 and 3. The mechanical design of the ComPact switches ensures that the position of the actuator always reflects the position of the main switch. The disconnected position corresponds to the O (OFF) position. The operated actuator cannot indicate the OFF position when the switch is open. Locking in the OFF position is not possible when the switch is open. Utilization category AC21A, AC22A and AC23A.