0
How do you get 40A when installing a tankless water heater with an existing 240V line with a double pole 30A breaker?
Wiki User
∙ 14y ago
== == Getting 40 Amps First, you'll need to run a set of heavier wires from the wall outlet for the water heater back to the main breaker panel - the longer the run is, the heavier the wires will have to be. The wires must have a black and a red as the two "hots, a white neutral and a green or bare ground wire. Then you'll need to buy and install a pair of 240V, 40 amp breakers that match your breaker panel manufacturer.
<><><>
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. == == == ==
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
Is a double throw 15amp breaker the same as a 30 amp breaker amp?
You have a double pole breaker for 240Volt supply. The maximum current is 15 amp.
How do you tap off existing unused 220 wire and convert it to 110 for a plug in?
Take out the double pole breaker, place the white wire on the grounding bar along with the ground wire, install singe pole breaker(size needed) attach black wire onto new breaker and you now have 110 line.
What's a double breaker 20 amps and 30 amps?
A double breaker is a breaker that has 2 switches on it. One of the switches is 20 amps and the other is 30 amps.
Does a double 50 amp breaker make a 100 amp?
No, a double pole 50 amp breaker protects a 240 volt supply at 50 amps. The number that is on the handle of the breaker is the amperage that the breaker will trip at if an overload occurs on the circuit.
Should you buy double pole breaker or single pole?
Use of a double pole breaker or a single pole breaker depends entirely on the application. If you don't know about the application, contact a qualified electrician in your area.
How can I find help on installing replacement windows?
Many fully assembled, ready-to-install windows slip right into the existing openings. When the job is done, the house will have beautiful new double-hungs that look right,
What size breaker should be used for a double oven?
50 amp breaker wired with AWG # 6 wire.
Where is the double-pole circuit breaker located?
before the load
Is it a fire hazard to double land wires on a breaker?
Yes!
Can a 220 VAC breaker be single pole or does it have to always be a double pole breaker?
U.S. 240 VAC breakers are always double pole since they are protecting two legs of the circuit.
Can a double pole circuit breaker be used for 2 different circuits I have a 20 amp double pole breaker want 2 circuits running 14 gauge wire?
can a 20 amp double pole circuit breaker be used for 2 different 120 v circuits using 14 - 2 wire
What companies specialize in installing double glazing doors?
There are a few companies that specialize in installing double glazing doors. Such companies include Shamlian Windows and can be found on the Check a Trade website.
