Connecting an electric boiler via Wi-Fi relay and a magnetic starter
How to connect a 3-phase electric boiler via wi-fi SONOFF relay and starter?
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How to connect a 3-phase electric boiler via wi-fi SONOFF relay and starter?
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Hello! Apparently the starter is controlled by a wifi relay. For voltage coupling, the starter control coil is 220 volts. To get 220 volts you need to take one phase and zero. The same 220 will power the WIFI relay.