# Question: How Many Amps Can You Put On A 30 Amp Breaker?

## What is a 30 amp breaker used for?

The 15-amp and 20-amp breakers often handle baseboard heaters, 30-amp serve water heaters and electric dryers, 40- and 50-amp are for electric ranges, and the 70-amp could serve a large air conditioner or a subpanel..

## Can I put a 30 amp breaker in place of a 20 amp breaker?

But in general the answer is “No, do not go and put a 30 amp breaker in place of a 20 amp breaker because the wiring is most likely ‘sized’ for the 20 amp load and -may- overheat if a 30 amp load is used with wiring sized for a 20 amp load.”

## Can you change a 30 amp breaker to a 40 amp?

No! The only safe way to increase the circuit’s capacity is by replacing the wire with one of adequate gauge. For 20 amps, 12 AWG copper is adequate for up to about 100 feet. If you simply replace the breaker, the wire can overheat and ignite the building from inside the walls.

## Can you put 12 wire on a 25 amp breaker?

A 12 gauge wire is rated for 25 amps. NEC only allows for it to be protected at a max of 20 amps (unless following an exception for motor loads).

## Is a 30 amp RV plug 110 or 220?

The 30-amp service for an RV is 120-volt with a 3 prong receptacle and a single 30-amp dedicated breaker. The 30 AMP is a standard ANSI C73. 13, TT-30P (plug) / TT-30R (receptacle). This designation was made specifically for TRAILERS.

## How many watts is 30 amps at 220 volts?

30-amp 240-volt circuit: 30 amps x 240 volts = 7,200 watts. 40-amp 240-volt circuit: 40 amps x 240 volts = 9,600 watts. 50-amp 240-volt circuit: 50 amps x 240 volts = 12,000 watts.

## Can you use a 30 amp breaker for a electric stove?

Electric Stove Outlet Requirement Circuit grounding is required, so all 240-volt receptacles have four slots, but 30-amp receptacles, such as the NEMA 14-30, won’t accept a plug from a 40- or 50-amp appliance.

## How far can you run a 30 amp wire?

#10 is normally used for short runs of 30 amps. With 150 feet though, I’d opt at least for #8, and maybe even #6. Go to any standard wire table to find the ohmage of the wire size. Then you can calculate the voltage loss at 30 amps and see if you can tolerate that.

## Can you use 6 gauge wire 30 amp breaker?

Re: 6 gauge wire to a 30 amp breaker Oversized wire gauge size is not a problem, as long as it fits properly beneath the breaker lugs and does not need to be modified or altered to fit. Oversized breaker size is a problem.

## How many amps can a 30 amp breaker handle?

A 30-amp outlet supplies 3,600 watts (30 amps multiplied by 120 volts). Therefore, the breaker on that outlet could meet code and still trip anywhere between a total load of 2,880 watts (80 percent of 3,600 watts) and 4,320 watts (120 percent of 3,600 watts).

## What can you run on 30 amps?

In a typical RV with a 30 amp electrical service some of the power hungry appliances and portable devices are the air conditioner, electric water heater, microwave, coffee maker, electric skillet, hair dryer, space heaters and a toaster.

## What wire do I use for a 30 amp breaker?

Any circuit fused for 30 amps must use a minimum of 10 ga copper or 8 ga alu. Longer runs may require an upgrade of wire size. In your case, use at least 10 copper for your welder regardless how far it is from the breaker panel.

## What size wire is needed for a 30 amp breaker?

Why Wire Gauge Is ImportantWire UseRated AmpacityWire GaugeElectric clothes dryers, 240-volt window air conditioners, electric water heaters30 amps10-gaugeCooktops and ranges40-50 amps6-gaugeElectric furnaces, large electric heaters60 amps4-gauge5 more rows

## How many amps will 12/3 wire carry?

The NEC prohibits use of an overcurrent device exceeding 20 amps with #12 wire. I know that’s not what you wanted to hear, but the NEC sets this limit because #12 wire will overheat if you make it carry more than 20 amps. This is generally what causes house fires attributed to the electrical system failure.

## Can you replace a 30 amp fuse with a 40 amp fuse?

It is in no way safe to replace the 30A fuse with a 40A fuse for longer periods of time. No. A fuse is a safety measure and if your 30A fuse keeps burning out, you’ve got another problem and you would need a professional to seek out the malfunction. There is an exception to this though.

## Can 12 AWG handle 30 amps?

12 gauge wire is rated for a maximum of 20 amps. You need a minimum of 10AWG wire for 30 amps. … Electrical current is measured in amperage (amps), and each wire gauge has a maximum safe carrying capacity.

## How many amps can 12 gauge wire handle at 240 volts?

Basic wire sizing guide for US 120 and 240 voltsGaugeAmpsWatts#14121440#12161920#10242880#83238403 more rows

## What does a 30 amp plug look like?

A 30 amp plug has three prongs – a 120 volt hot wire, a neutral wire and a ground wire – and is generally used on RVs with lower load requirements. A 50 amp plug has four prongs – two 120 volt hot wires, a neutral wire and a ground wire – that supply two separate 50 amp, 120 volt feeds.