To connect the external system to the double acting potential-free switch, connect the external device to the screw terminal located in the box behind the vent
motor. Always pay particular attention to whether there are special precautions in relation to the external system when it is connected to the potential-free
the instructions of the external system's manufacturer.
switch. Always follow
NOTE: The double acting potential-free switch can support a maximum of 230 Volt ± 10% ~ 50 Hz and 3 amps.