#voltage relay #relay #electrician Wiring diagrams for the RN-63tc voltage relay in an apartment electrical panel. More information about the relay: https://novatek-electro.ru/catalog/od... The panel includes conductors: phase, neutral and grounding. The phase goes through the input circuit breaker to the residual current circuit breaker, and then is distributed into groups through the corresponding circuit breakers. Cross-module with a neutral bus. One of the outgoing cables is connected to the grounding bus, to one of the circuit breakers and to the neutral bus. We will connect the voltage relay between the input switch and the residual current circuit breaker. And it will protect the entire load that will be behind it from voltage changes. So, the relay is connected. The neutral conductor passes through the input circuit breaker, then, is connected in accordance with the marking on the relay, and then goes to the residual current circuit breaker. In the same way, the phase conductor passes from the input circuit breaker, through the voltage relay contact, and then to the residual current circuit breaker. I apply voltage. The automatic reconnection time delay is counted, which is set by this regulator. The contact is closed, now the relay display shows the current voltage at the input terminals. I can set the minimum voltage tripping setting with this regulator. As soon as I start turning the regulator, the setting value is displayed. After a few seconds, the device itself remembers the value and goes to normal readings. And this regulator sets the maximum voltage tripping setting. The algorithm is the same. When you press this button, the display shows the last five cases of voltage relay tripping. The relay is designed in such a way that it has an electrical connection between the input and output terminals of the neutral conductors. Therefore, there is another option for connecting neutral conductors. Now you will see it. In this option, the neutral wire, bypassing the voltage relay, is immediately connected to the subsequent load. And from there, a jumper goes to the voltage relay power supply. The second terminal for the neutral conductor remains free, and we can even use it, if necessary, to connect any consumer. And the phase conductor, as before, passes through the relay, through its contacts, to the load. I apply voltage. As you can see, the voltage relay works exactly the same as in the previous case. There is another connection option, in case you are not sure about the serviceability of your voltage relay, I will show you now. If you are not an electrician, and cannot independently exclude the voltage relay from operation in case of its failure, then an additional machine or switch shunting the power contact of the voltage relay will come in handy. In the normal state, it should be turned off. I apply voltage. The relay works in normal mode. But if suddenly it began to operate suspiciously often for no reason, then, while you are waiting for an electrician, you can turn on this machine, thereby closing the circuit bypassing the voltage relay. Now the relay works simply as a voltmeter, and all the current goes bypass, through the circuit breaker to the load. So, here is our diagram in general. Input machine, voltage relay with its bypass, residual current circuit breaker. And through these single-pole circuit breakers, groups of energy consumers are connected.