The ComPact INS and INV switches are load break switches with a rotary drive. All ComPact INS/INV load break switches 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 drive always reflects the position of the main switch. The disconnection position corresponds to position O (OFF). The actuated drive cannot indicate the OFF position when the switch is open. Locking in the OFF position is not possible when the switch is open. Usage categories AC21A, AC22A, and AC23A.