FAN FAILURE RELAY PROTIME's N22 Series Fan Failure Relay is only of its kind FAN FAILURE ALARM RELAY without any mechanical sensors. NOW ALSO AVAILABLE EC FANS. N22-FFR is most intelligent fan failure relay to monitor 2 fans simultaneously. N22-FFR can be easily used with different fans & even same relay used for 2 fans can be used for 1 fan without any settings. We at PROTECH manufacture WIDE Range of PROTIME make Digital power protective relays like - Earth Leakage Relays/ Earth Fault Relays/Voltage & Current Relays for AC / DC Applications, Diesel Engine Controllers, Industrial battery chargers, Rectifiers, Servo Voltage Stabilisers, Test Benches/Kits & Time delay Relays.