1/ Cut the power supply of the electrical pane.
2/ Unscrew the relay switch terminals you want to connect
3/ Insert the relay switch on the DIN Rail Box while respecting the direction of insertion of the relay switch, the terminal block must be located on the left (see figure 1).
Make sure the terminals are well unscrewed and take care to not fold the pins located inside the DIN Rail Box

4/Screw the 6 screws of the relay switch to fix both elements together

5/ To facilitate the connection, unscrew the 6 screws of the DIN Rail Box terminals.
6/ Install the box with the relay switch on the DIN Rail Box of the electrical panel
7/ Connect the terminals according to your module according to the diagram

8/ Turn the power supply back on and check that the LED on the module lights up through the light guide
9/ For the pairing or configuration of your module, please refer directly to its user guide

Recommandation :
The power of each module must not exceed 1500W if 3 DIN rail boxes are placed in the switchboard as shown in figure 4.