GP3VA Voltage / Current Protector is a compact mini voltage relay and surge protective device designed for AC220V distribution systems. Din Rail mounting and adjustable settings provide reliable protection against overcurrent, overvoltage and undervoltage conditions. Key benefits Protects connected equipment from overcurrent, overvoltage and undervoltage events, reducing the risk of damage and unscheduled downtime. Adjustable operation thresholds and reset time allow matching protection settings to specific loads and system requirements. Compact mini form factor and Din Rail mounting simplify installation in control panels and distribution boards. Available rated current options suit a range of installations, with models supporting 40A and 63A operation. Main features Product name and model number GP3VA Voltage / Current Protector Functions: over current, over voltage, under voltage protection Rated supply voltage AC220V (LN) Rated operational current options 40A and 63A Rated voltage reference 220V Over voltage operation value adjustable from 230V to 300V with factory default 280V Under voltage operation value adjustable from 140V to 210V with factory default 160V Reset time adjustable from 1 to 600 seconds with factory default 5 seconds Rated frequency 50/60Hz Mini type module designed for Din Rail mounting Surge protective device to support power conversion stability Why this unit solves common problems Prevents motors, inverters and sensitive electronics from running during harmful voltage sags or surges by disconnecting the load when thresholds are exceeded. Reduces repeated trips or false starts through adjustable reset delay, allowing controlled automatic restart after voltage stabilizes. Simplifies retrofit and installations with a compact footprint and standard Din Rail mounting. Typical applications Industrial control panels protecting motor starters, pumps and variable frequency drives from abnormal voltage and current conditions. Renewable energy or inverter systems where consistent supply voltage and surge protection improve converter reliability. Commercial and residential distribution boards protecting air conditioning units, refrigeration equipment and other current appliances. Installation notes Designed for AC220V systems wired L to N. Follow local wiring regulations and confirm correct wiring before powerup. Select the rated operational current variant that matches load requirements, either 40A or 63A. Configure overvoltage and undervoltage thresholds and reset time according to the protected equipment specifications. Technical summary Model GP3VA Voltage / Current Protector Rated supply voltage AC220V (LN) Rated operational current 40A or 63A Over voltage range 230V to 300V, default 280V Under voltage range 140V to 210V, default 160V Reset time 1 to 600 seconds, default 5 seconds Rated frequency 50/60Hz Mounting Din Rail Type Mini voltage relay and surge protective device This GP3VA unit provides adjustable, Din Rail friendly protection for AC220V installations where overcurrent, overvoltage and undervoltage events must be managed to maintain equipment reliability.