Voltage control relay / volt control with warranty!!!

High-quality voltage control relay for 40/63/80 amperes. Prices from 5000-7500-9500. depending on the manufacturer and current parameters 40/63 Amperes. There are also 3 phases available. A. Excellent protection of the house from network overvoltage. protection against overvoltage of the network and excess of the load current from the set value. With the function of self-recovery of the power supply. I have been using it for 5 years. It saved me a couple of times. I recommend it!!! There are different voltage monitoring relays available. Prices are negotiable from 5000. There is a guarantee! There are 4 pieces of RCD 63 Ampere / 30mA 4 poles for 3 phases original Siemens