Finder 3 phase network and line monitoring relays 70 series finder 704184002030 the finder 704184002030 is a network monitoring relay rated at 380 to 415vac the relay is from the finder 70 series and is for 35mm din rail mounting this electronic voltage monitoring relay has screw terminals and is ideal for three phase applications the multifunctional relay provides the flexibility of monitoring undervoltage overvoltage window mode phase rotation phase loss asymmetry and neu