Description
Product details
The N22 series Fan Failure relays monitors the health of cooling FAN used in Mission Critical applications. The N22-FFR senses "FAN Blocked" or "FAN OPEN" conditions and is provided with fixed time delay to avoid nuisance tripping. The relay has wide auxiliary power supply range from 90 to 270V AC/DC. The N22-FFR2 relay has two Standard current ranges as per fan size, it is economic yet flexible version of relay, where current range of different Fans gets automatically selected during installation of relay. The two ranges should be selected by user while placing an order as per fan’s current consumption. The Fan/s current should be within range selected. Each FFR can monitor 2 fans maximum, when connected in parallel. The relay has inbuilt intelligence to cater the changes in input supply voltage within + 10% & -5% of nominal supply voltage. For more technical data please refer BROCHURE section (DS N22-FFR2(V3))
