3. Unlock the device (above) using a screwdriver.
4. Pull the device away from the device connector.
5. Release the screws.
6. Separate the device connectors.
7. Remove the cover.
Mounting
7.13 Removing 22.5 mm/17.5 mm devices with device connectors from the wall
SIRIUS 3SK1 Safety Relays and 3RQ1 Positively-Driven Coupling Relays
148 Equipment Manual, 05/2021, A5E02526190021A/RS-AE/005