Approved for use in hazardous areas zone 2.
Replaced by BF-500V2/N
The call point must be connected to a loop driver approved for zone 2.
The SelfVerify function ensures the highest grade of reliability and the lowest degree of manual testing because all units comprising this function are automatically self-tested once every 24 hours.
The call point must be installed according to local regulations, which normally means along escape routes, landings and exits.