How To Wire A Switch For Electric Hot Water Heater

We are installing the wiring for an electric water heater circuit and we need to make sure we are using the right wire size.

How to wire a switch for electric hot water heater.

In case of single phase 120v supply the neutral is directly connected to the water heater where the hot wire live or line is connected to the common of a three way switch. My electrical wiring project involves change the wiring a water heater in the bathroom of a mobile home. We have a sub panel installed by the electrician who started the project with the breaker ready to go. 40 gal 240v dual 4500w 18 75a connected to the circuit breaker panel double pole 40a breaker with a 12 20amp cable.

In the above diagram i shown that the upper water heater element is switched off and lower heater element is switch on. Next take the black wire from the feed circuit and one wire from the water heater it doesn t matter which wire and twist them together. We are installing a new electric water heater in a home addition. An acquaintance has an older mobile galvanized branch water lines and his water heater.

A few feet of 10 2 w g and we have a wonderfull thing. Secure them with a wire connector and wrap electrical tape around the connection for additional safety. Note that these element is 220 volts ratings and you can also 440 volts heater elements but you need to provide the line supply my mean to lines or two hot wires supply 440 volts. Put in two 3 4 romex connectors and install the switch right at the water heater.

Both 3 way switches are connected via traveler wires blue while the common of second 3 way switch is connected to the water heater.