Locks reliably due to its sturdy C-shape, which changes into a flat, space saving shape when pulled up.

Ideal in combination with our EL1 / EL4 and S-ABS-motors.

The SIRAL safety blocking device stands at least 1600N per window unit with professional installation.

It is essential to use the clamping device for bearing (type no. 4420 or 4422) to prevent the tube from levering out of the clamping bearing!