The three-relay card for SMART3 gas detectors allows the detector to be provided with tension free changeover contacts.
- The first output is to be associated to the Fault and Watch-dog alarm
- The second output can be associated to the first or second alarm threshold
- The third output can be associated to the second or third alarm threshold.
The card comes complete with a flat cable and connector to be easily plugged on the detector’s mother board.
- Contacts rating: 24vdc-1a
- Operation voltage: from 10,2vdc to 16vdc and from 19vdc to 28vdc