 |
 |
 |
 |
 |
 |
 |
ABOUT GAS
FAQ - Controllers
25. What are "Normally Energised" and "Normally De-energised" alarms?
Normally Energised means that the relay is in its energised state when not in alarm and becomes
de-energised when in alarm.
Normally De-energised means that the relay is in its de-energised state when not in alarm and becomes energised in alarm.
Normally Energised relays are "fail-to-safe" as the relay will changeover even in the event of a total power failure. Normally energised relays consume more power than normally de-energised relays.