The FG 220-60 is a compact roll-off safety device with electrical contact that has been specially developed to prevent a heavy, unbalanced door from rolling uncontrollably as a result of a mechanical defect. After activation of the roll-off protection, it can be reused by replacing the removable aluminum plates. The electrical contact must be connected to an emergency stop of the relevant control to ensure that the drive stops immediately when the roll-over protection is activated.