4500 Watt Hot Water Heater Breaker Size

My current county building dept requires 10 with the breaker to be 25 amp.

4500 watt hot water heater breaker size. I would run 10 awg wire and use a 30 a 240 volt breaker. 4500w at 240v 18 75a so at 80 under it s 23 4 or next size breaker 25a. What size breaker to use on a 4500 watt water heater. This electrical wiring project is about changing the wiring for a water heater in a home.

Multiply the current rating of the water heater with 125. 16 25a x 208v 3380 watts. So technically 4500w and 5500w requires different size breakers although many ahjs will let the 30a breaker go for the 4500w but nec does not allow the breaker to overprotect the draw more than 125. What size breaker to use on a 4500 watt water heater.

Therefore you will need to use awg 3 wire on a 100 amp breaker. 4500 240 18 75 amps will work on a 20 amp ocpd but. 2011 07 27 05 05 50 2011 07 27 05 05 50. If it s 4500 then the 20 amp will work but it won t be code compliant.

Asked by wiki user. What ampts on the breaker do you needfor a 4500 watt hot water tank. I would run 10 awg wire and use a. My previous local county building dept allowed a 30 amp breaker w 10 wire for a 4500 element wh.

A 4500 watt element draws 18 75 amps at 240 volts. Code requires wire sized at 125 of continuous load. 15 000 watts at 240 volts will use 62 5 amps. Assuming this is.

You would use a 12 copper wire which is rated at 20 amps. 18 75 x 1 25 23 5 amps. Wiki user answered. 5500w at 240v 22 91a os at 80 under it s 28 6 or next size breaker 30a.

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. I agree with you that this water heater circuit is not a typical configuration and the common circuit for a new home is 10 copper wire protected by a 2pole 30amp circuit breaker however lets look at this application carefully. First lets start. In a us household the current draw for a 1500 watt water heater is 12 5 amps.

4500 240 18 amps. Now in order to choose an electric breaker multiply the current draw of the water heater with 125 per cent in order to determine the size of the breaker you will need. The incoming cold water is.