Electric actuator for an entry and exit device, in particular a door

A rotary actuator (1) for a door (2) or ramp comprises an electric motor (3), a reduction gear (4, 5) connected to a front portion (6) of a shaft (7) of the motor (3), an output shaft (8) connected to the reduction gear (4, 5), an automatic locking brake (9) connected to a rear portion (10) of the motor shaft (7) and a decoupler (11) connected between the rear portion (10) of the motor shaft (7) and the locking brake (9) and actuatable to decouple the motor shaft (7) from the locking brake (9).