answersLogoWhite

0


Best Answer

Answer for USA, Canada and countries running a 60 Hz supply service.

You need a 30 amp 2-pole breaker and #10 AWG wire.

<><><>

As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed.

Before you do any work yourself,

on electrical circuits, equipment or appliances,

always use a test meter to ensure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: What size breaker needs to be installed for 4500 watt 240 volt hotwater heater?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Electrical Engineering

Can you use 14-3 wire on a 20amp breaker?

No. A 20 amp breaker needs 12 gauge wire.


If you have a 125 amp breaker box on the pole with a 125 amp breaker going to your house and you get a hot tub that needs a 60 amp GFI breaker would that overload the box?

It depends on what else you are running in the house. Add up your amperage to see if it is more than the 125amp rating. Which should be below 105 amps constant to keep from overheating the main breaker. If you are not running a big central ac system or a electric oven and water heater you should have no problem running the hot tub.


How much does a shunt trip breaker cost?

The cost of a shunt trip breaker depends on the amperage and number of poles the circuit connected to it needs. The cost of the shunt trip over a conventional breaker is substantially more.


What makes a circuit breaker go bad?

A circuit breaker can go bad from being tripped too many times. Many people don't understand that the tripping of a circuit breaker indicates a problem that needs to be corrected. They usually just reset the circuit breaker, leading to a very common second (or third, or fourth) trip. Circuit breakers tripping are for the prevention of fire due to excessive heat in the circuit. They're not supposed to be tripped repeatedly. This can wear the breaker out. Believe it or not, I've also seen circuit breakers fail to re-energize after being turned off. I speculate this was actually caused by the breaker never having been cycled (it was a main breaker), and the time elapsed since it was installed. Electrical equipment doesn't last forever. It's the same as anything else.


How many 20amp outlets in commercial building per circuit?

All depends on how big your main breaker is and what size wire you are using,one 20 amp outlet needs #12 wire not more than 50feet away from main breaker

Related questions

What size breaker needs to be installed for 15000 watt 240 volt heater?

15,000 watts at 240 volts will use 62.5 amps. Therefore you will need to use AWG #3 wire on a 100 amp breaker.


Why does the fuse box in my house make a clicking noise when the heater clicks on?

The clicking noise you are hearing could be the heater is overloading the breaker and it is on the verge of tripping This could be caused by the heater being to large for the circuit. Check the amperage rating on the heater and the rating on the breaker It also cold be the circuit breaker is going bad and needs to be replaced by a qualified electrician These are 2 possible answers you also could have a bad (loose) electrical connection some where in the circuit


Can you use a 20 amp breaker if the amp rating on a heater is 21 amp?

No, a breaker needs to be loaded less than 80 percent. As they reach their tripping point they get hot. The circuit rating, breaker and wiring is not designed for 21 amps. The next size would be a 25 to 30 amp breaker that has #10 wire feeding it.


How to replace a heater core on a 94 Lincoln mark8?

The heater box was preassembled and shipped to the Lincoln plant for assembly. The box is installed as a unit then the dashboard is installed...... Get the picture? You have to take the dashboard out and disassemble the heater box to get the job done. I advise a trip to your local library for instructions for your needs first! Not much else to say... Good luck!


Does a drip leg a city code item or should it already be on the water heater or boiler?

It needs to be installed on each part of ontario gas code


How do you know the heater hose needs replacing?

You know the heater hose on a vehicle needs replacing when it beings to swell and soften. The heater hose runs from the intake manifold to the heater core.


Why does the heater blow only cold air in a 1999 dodge durango?

check to see you have a thermostat installed. If you have one then you have a damper open due to no vaccum or corroded or foam seal needs replacing


Can you use 14-3 wire on a 20amp breaker?

No. A 20 amp breaker needs 12 gauge wire.


Recently added a third room and wired in ceiling fans for all three rooms and now the AC Water heater breaker will trip about 10 sec after being flipped on?

You should call back the electrician who did the wiring and complain to him. It could indicate incorrect wiring. It could indicate that the electrician put something besides the water heater on the water heater circuit. It could indicate that in the process of remodeling the electrician damaged something. It could be something damaged the circuit leading to the water heater. It could indicate that during the time of the repair, your water heater broke. It could indicate that your circuit breaker is bad. Someone with volt meters needs to be in your house to find the problem.


Every time you vacuum you blow the breaker in your house can you change the breaker?

Either your breaker switch needs to be changed for a heavier one, the pool equipment needs to be put on an other circuit or better still one of its own.It is best to talk to an ellectrician about the delails involved.


If you have a 125 amp breaker box on the pole with a 125 amp breaker going to your house and you get a hot tub that needs a 60 amp GFI breaker would that overload the box?

It depends on what else you are running in the house. Add up your amperage to see if it is more than the 125amp rating. Which should be below 105 amps constant to keep from overheating the main breaker. If you are not running a big central ac system or a electric oven and water heater you should have no problem running the hot tub.


Can you conect your dryer to a heater circuit?

Not advisable. Both units consume huge amounts of Amps (amperes = current) and the normal 20 or 30 amp breaker may not sustain prolonged operation of both. Where I live, we have two electric meters ... one just for the water heater, the other for the house and all it's electrical needs (except for the water heater).