Mechanical and electrical interlock kit – OTZT4A

The disconnector can be mechanically interlocked in the OFF-position using padlocks. The diameter of the lock bail can be max. 8 mm. By installing a coil inside the mechanical interlocking unit, the disconnector can be electrically interlocked in OFF-position or in both ON and OFF-position. The electrical interlock works using the “closed circuit principle”: when the control voltage is not applied to the coil, the disconnector with type-A mechanical interlock cannot be operated to ON-position, and with type-L mechanical interlock the disconnector cannot be operated to ON- or OFF-position.