Opening the housing - SmartRelay 3 system

The housing is secured by two catch lugs. These latches can be pressed in with a pointed, flat object and remain engaged as long as the cover is in place. When the housing is correctly mounted, the lugs are on the underside.

  1. SmartHandle tool, flat-bladed screwdriver or similar object.
  1. Carefully pull the cover while performing the following steps.
  2. Press one of the two locking lugs upwards using the SmartHandle tool.
  4. The lug remains pressed in.
  5. Push the second locking lug upwards using the SmartHandle tool.
  7. Both catch lugs are pressed in.
  8. Fold the cover upwards.
  10. Remove the lid.