Abstract: Herein disclosed is a coin handling apparatus such as a coin packaging apparatus which is free from any trouble that would be caused when the power supply service is interrupted or when the power supply circuit is carelessly broken. The coin handling apparatus includes a rotary solenoid which can rotate back and forth at a predetermined angle thereby to control the opening and closing operations of the guide passage by a rotary pin. Further inclusive is a power source detecting circuit which is made operative to detect the existence of the power supply to the coin handling apparatus thereby to generate output signals respectively corresponding to the existence and nonexistence of the power supply.