Quick Answer: What Size Breaker Do I Need For A 40 Gallon Electric Water Heater?

How many amps does a 40 gallon electric water heater use?

Bottom line, For a 4500w heater w/240v it will draw 4500/240 or 18.75 amps so #10 wire and either 25 or 30 amp breaker, depending on code..

What size breaker do I need for a 50 gallon electric water heater?

The standard for water heater circuits is #10, two conductors with ground (10/2) and a 30 amp circuit breaker for a water heater.

How many amps does an electric water heater draw?

30-ampElectric hot water heaters typically require a dedicated 30-amp, 240-volt breaker.

What size breaker do I need for a 80 gallon water heater?

A 40 Amp breaker will overfuse the tank and an EH40 will handle the load. So you’re saying the 40 amp breaker could possible let too much current get to the hot water heater, and therefore could cause a fire for not “breaking” the circuit soon enough?

How many amps does a 6 gallon hot water heater draw?

16.7 A Amps6 gal., 120 VAC, 16.7 A Amps, Residential Mini Tank Water Heater.

What size breaker do I need for a 4500 watt water heater?

A 4500-watt element requires 10/2 wire and a 30 amp (220volt) breaker. The 3800 can be wired with 12/2 wire and a 20 amp breaker.

Can I replace a 4500 Watt water heater with a 5500 Watt?

Can I replace 4500 watt elements with 5500 watt? You can definitely replace 4500 watt with 5500 watt and get 4-7 gallons more hot water from a tank.

What size breaker do I need for a 1500 watt heater?

A 1500-watt heater on a 120-volt circuit thus needs a breaker of 15.6 amps. Because a 15-amp breaker would be too small, you need a breaker with the next highest rating, which is 20 amps. Include the current draw of any other devices on the circuit when calculating the breaker size.

What size breaker do I need for a 20 gallon electric water heater?

A water heater of this type is required to be considered a continuous load meaning that the branch circuit needs to be calculated at 125% of the heater’s rated ampacity. 4500/240 = 18.75 amps, will work on a 20 amp OCPD but, 18.75*125% = 23.4 amps, requires a 25 or 30 amp circuit.

Does an electric water heater use 110 or 220?

mamawsue, Large electric water heaters all run on at least 220 current. The only 110 volt units are the small undersink type heaters that only supply hot water for coffee or a single faucet sink. … Large electric water heaters all run on at least 220 current.

What size circuit breaker do I need for an electric water heater?

Electric water heaters require a 240-volt dedicated circuit, which serves only the water heater and no other appliances or devices. The circuit wiring typically includes a 30-amp double-pole breaker and 10-2 non-metallic (NM) or MC cable.

How many amps does a 20 gallon water heater pull?

A 20-amp circuit would be the required size to operate the water heater. This is determined by an Ohm’s law electrical formula: watts divided by voltage equals amps. I’ll even do the math for you. Divide 3,800 watts by 240 volts to determine that you’ll need 15.83 amps to operate your water heater.

How many amps does a 50 gallon water heater use?

18.75 ampsA typical 50 gallon electric water heater runs at 4500 watts. In an electric circuit of 240 volts, 4500 watts is equivalent to 18.75 amps.

How many amps does a fridge use?

Generally, a fridge uses about 6 or 7 amps, but triple that for the start-up surge, so a dedicated power outlet with 15 to 20 amps is required for a fridge. It should be the sole appliance plugged into that outlet. Once you know the refrigerator amps and volts, you can figure out the watts.