Lead cover EA280 Lead cover to cover cables as they travel from the door to the frame. When the opening angle of the door is more than 120° or the distance between the hinge and the door frame is more than 20 mm, the long lead cover EA281 should be used. Control unit EA453Control unit for the EL874 and EL875. Transformer EA70012 VDC, 4,5A transformer for electric locks. Control unit EA470Hi-O control unit.