General Voltage and current display relay are a microprocessor-based voltage monitoring device for single-phase AC networks to protect electrical equipment from surge voltage. The device analyzes the main voltage and displays its cu rent value on a digital indicator. Load is switched by electro-magnetic relay. The user can set the current voltage value and delay time through the button. The value is stored in non-volatile memory. Aluminum wires and copper wires can be used for connection.   Technical data Rated supply voltage: 230VAC Operation voltage range: 80-300 VAC Rated insulation voltage: 450VAC Rated frequency: 50/60Hz Rated current: 63A/100A Over voltage setting range: 130-300V Under voltage setting range: 80-210V Voltage hysteresis: 5V Voltage accuracy: 1% Altitude: :S2000m 96•90•66mm Protection degree: IP20 Permissible relative humidity: <50% at 40°C (without condensation) 388g Net weight: 388g Size: 96•90•66mm