The ATR 2D enables the control of mains voltage consumers by low voltage contacts in a very simple way.
The necessary control voltage (24V DC PELV) for the extra-low voltage contacts is generated internally - thus almost all switching contacts (e.g. reed switches) can be used, which can be supplied with 24V DC. Due to the two control inputs and the two potential-free 10A changeover contacts, the ATR 2D is very versatile, e.g. for open/closed detection of gates, doors, etc.