Abstract: Remote control locking and unlocking device, especially for an anti-panic bar, the displacement of which actuates the unlocking of a door or other exit opening means, of the type comprising a latch adapted to oscillate in rotation within a housing, wherein a lever arm comprises supplementary locking means adapted to cooperate with the cam outline of the latch in order to secure the latching rotation with respect to the lever arm when said arm is called into blocking position by the core of the electromagnet, such a control being applied to remote security locking of anti-panic bars.