The new RC200 with manual override unit M1 from Remote Control is suitable for DA and SR actuators, sizes RC210 to RC280. The top of the actuator is free for the fitting of accessories. The RC200 enables locking of the actuator in the open and closed position. The actuator is useful with spring return units SR. The hand-wheel stands still during remote operation. The new RC200 with manual override unit M1 eliminates the need of dangerous levers/ keys during manual operation.