Form C Door Release Relay, 18-24V Dc Input

The Aiphone RY-1824L is a door release relay module designed to act as an interface between the door release contact on a compatible Aiphone master station or Central Exchange Unit (CEU) and the actual door strike or magnetic lock. It ensures that the contact rating is sufficient for the door release hardware used, thereby providing reliable door operation and protecting the built-in contact from potential electrical surges.