# How many watts is 20 amps at 240 volts?

4,800 watts

## How many amps does a 240-volt water heater use?

4500/240 = 18.75 amps, will work on a 20 amp OCPD but, = 23.4 amps, requires a 25 or 30 amp circuit.

2,400 watts

4.17 amps

## How many amps does 5000 watts equal?

It may be that you have a circuit drawing 500 amps at 10 volts (500*10 = 5000 watts).

5 amps

## What is a 40 amp breaker used for?

Double-pole breaker 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.

## What size wire should I use for a 40 amp circuit?

“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”

## Is a double 20 amp breaker 40 amps?

No. Those breakers when installed sit on one side of each the phases in the panel yielding twice the voltage. In the US that’s 110/200 VAC. The current capacity of each phase is still 20 amps which means that the wire size has to be 12 AWG or higher.

## What size breaker do I need for a 40 amp oven?

3 Answers. According to the NEC, any household cooking appliance rated at 12kW or less can be served by a 40A circuit. Yours is over this so bumping up to a 50A would be required.

## How many amps can 8 3 wire carry?

8 AWG may carry a maximum of 70 Amps in free air, or 50 Amps as part of a 3 conductor cable.

## How many amps can a 50 amp breaker handle?

As evidenced by the linked 50 amp breakers, a 50 amp split phase 120/240 VAC service should be capable of 50 amps per leg, for a total ampacity of 100 amps combined. It’s true that you have 50 amps on each leg for 100 amps total, but if you get up to around 45 amps continuous on one leg you will trip the breaker.

6 gauge wire

## Can 6-gauge wire handle 50 amps?

For a maximum of 50 amps, you’ll need a wire gauge of 6.

## How many amps can a 60 amp breaker handle?

Registered. brian john said: Rough rule of thumb for residential thermal magnetic circuit breaker on instantaneous operation, 4-10 times the name plate rating 60 amp CB 240 amps-600 amp.

## What size wire do I need for a 60 amp circuit?

That would be 4-gauge wire. In practice, however, it’s common to wire 60-amp breakers with 6-gauge, 3-conductor wire because an appliance that needs a 60-amp breaker seldom draws the full 60 amps. If you’re installing a 60-amp subpanel, however, it’s best to connect it to the main panel with 4-gauge wire.

## Does a double 30 amp breaker equal 60 amps?

A main breaker is a large-amperage double breaker, same as any double breaker in the breaker box, except it supplies power to each busbar. So your question is like asking if you can draw 60 amps off a 30 amp double breaker the answer is NO.

## What size wire should be used with 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.

## Can I use 12 gauge wire on a 30 amp breaker?

No. 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.

## What can I run off a 30 amp breaker?

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 size breaker do I need for a 240 volt heater?

Adding a 240-volt baseboard heater usually requires a new 20- or 30-amp double-pole circuit breaker and new circuit wiring to supply one or more heater units. This is a dedicated circuit that serves only the heater(s).

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