Operator for sectional doors Type GST 120

Gear box with irreversible worm and worm wheel with hollow shaft of 25,4 mm. The wormwheel of special bronze and worm are equipped with ball bearings and runs in oil. The AC motor is directly flanged by means of a flexible coupling. Standard voltage 3-phase 230/400 V. with thermal protection in the coil (special voltage as option). The unit can be mounted in any position : the horizontal position is recommended. The limit switch shaft with its own drive worm is integrated in the gear box.

The limit switch
On the reduction is a box mounted with limit switch ES10, this can be connected with a separate controller which can be chosen out of the LST/WST range. The limit switch consist out of a potential free switch, a control current limit switch for the end positions and a safety switch for each side of rotation.