My electrical wiring project involves change the wiring a water heater in the bathroom of a mobile home.
How to wire a switch for electric hot 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.
A few feet of 10 2 w g and we have a wonderfull thing.
40 gal 240v dual 4500w 18 75a connected to the circuit breaker panel double pole 40a breaker with a 12 20amp cable.
Put in two 3 4 romex connectors and install the switch right at the water heater.
In the above diagram i shown that the upper water heater element is switched off and lower heater element is switch on.
Wiring a water heater electrical question.
Lets not forget the ground screw and pig tail for that metal box.
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.
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 the wiring for an electric water heater circuit and we need to make sure we are using the right wire size.
We have a sub panel installed by the electrician who started the project with the breaker ready to go.
An acquaintance has an older mobile galvanized branch water lines and his water heater.
Wrap the ground wire around the ground screw and tighten it down securely.