Finder monitoring relays 71 series finder 715182301021 the programmable universal current monitoring relay finder 715182301021 is rated at 230v 10a this 1 co spdt relay is for mounting onto 35mm din rail and has a acdc current detection that is adjustable this relay can be used with current transformer 505 1005 1505 2505 3005 4005 or 6005typical applications monitoring of the over and undercurrent or nominal current with hysteresis 5 50 of the nominal valu