How To Wire A Hot Water Heater Electric

How to wire an electric water heater before you get started you need to ask yourself is power currently running to the water heater s location.

How to wire a hot water heater electric.

The circuit wiring typically includes a 30 amp double pole breaker and 10 2 non metallic nm or mc cable. 40 gal 240v dual 4500w 18 75a connected to the circuit breaker panel double pole 40a breaker with a 12 20amp cable. The wire supplying power from the breaker panel to your water heater will usually be a 10 2 romex cable blk wire hot marked white wire hot bare copper wire ground. This is the common format for wiring an electric water heater but it is not the only.

In cases where you are replacing a gas tank with an electric you will likely need to run cable 2 pole 30 amp breaker with 10 2nm cable from the circuit to the tank. An acquaintance has an older mobile galvanized branch water lines and his water heater. Most home hot water heaters are powered by a 240 volt circuit. My electrical wiring project involves change the wiring a water heater in the bathroom of a mobile home.

Most hot water heaters are on a 30 amp two pole breaker. The two poles means it is a stated 240 volts or an actual 230 volts. While all voltages are dangerous it is this particular voltage which is most notorious for causing severe injury or death. Electric water heaters require a 240 volt dedicated circuit which serves only the water heater and no other appliances or devices.

Since a water heater has no outlet the cable will be run from the wall to the junction. At the water heater the black circuit wire connects to the black wire. Understanding water heater wiring. Electric hot water heaters typically require a dedicated 30 amp 240 volt breaker.