Protection against accidental contact is intended to ensure the health of users when they come into contact with live conductors.
This protection, which is required by the relevant safety regulations, can simply be plugged onto existing relays and just as easily removed if necessary. By using transparent materials, the switching status of the relay can also be observed during operation.
Please note: For use with the RL 42 and RL 42-l relays you need two DK 21, for the RL 21 relay you only need a touch guard.