Marantec Special 304 - exterior release for sectional and up-and-over doors

The cylinder lock is built-in into the door afterwards and connected to the operator system release via Bowden/cable. Pulling out the cylinder mechanically unlocks the operator system, e.g. in the event of a power failure.

- suitable for up-and-over doors and sectional doors
- mortise lock with security cylinder
- Bowden cable 700 mm
- mounting material