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. The two poles means it is a stated 240 volts or an actual 230 volts.

Hot Water Heaters
Wiring diagram for a hot water heater. It shows the elements of the circuit as streamlined shapes and the power and also signal links in between the devices. Guide to installing power for a tank less water heater electrical question. This is the common format for wiring an electric water heater but it is not the only. Wiring diagram for electric water heater save how to wire a hot electric water heater wiring diagram new troubleshoot rheem tankless building electrical wiring representations reveal the approximate areas and affiliations of receptacles lights as well as permanent electrical solutions in a structure. Electric water heaters require a 240 volt dedicated circuit which serves only the water heater and no other appliances or devices. The line is connected to the l 1 terminal while neutral or second line is connected to the l 3 terminal.
The circuit wiring typically includes a 30 amp double pole breaker and 10 2 non metallic nm or mc cable. Replacing a gas water heater with a 240 volt 30 amp hot water heater and reconnecting to an existing 240 volt 30 amp hot water 10 gauge circuit. Understanding electric water heater wiring. As long as your water heater is not too far from the panel it will be wired with 10 wire. Most hot water heaters are on a 30 amp two pole breaker. Wiring diagrams residential electric water heaters current production 315267 000 time clock switch operates bottom element only to power supply to time clock switch off peak meter operates to power supply to off peak clock 2 wire 1 phase non simultaneous operation from 3 wire heater junction box black blue yellow to off peak.
Black color is neutral while red is phase or line and the yellowgreen wire is used for ground earth. In the above diagram i shown that the upper water heater element is switched off and lower heater element is switch on. The wiring connection for both single phase 120v and 240v are same ie. The original 240 volt 30 amp hot water 10 gauge circuit wires will need to be verified that they are not being used for some other purpose. I want to install a tankless water heater which requires an electric circuit. The water heater element is connected to the thermostat via t 2 as hot and l 4 as neutral.
At the water heater the black circuit wire connects to the black wire lead on the water heater and the white circuit wire connects to the white wire lead. A wiring diagram is a simplified conventional photographic representation of an electrical circuit. I have a single 2 pole 60 amp going to my my sub panel. My main electrical service is 200 amp. Assortment of wiring diagram for hot water heater element.