# How many amps is a 200 amp breaker rated for per phase?

A 200 amp breaker is rated to trip at 200 amps regardless of the number of phases.

### Why do you need to know voltage of a breaker?

Breakers and other electrical equipment are rated in voltage so you know what voltage they can withstand. The breaker could fail and start a fire if you apply a higher voltage than it is rated for. Breakers are actually rated in amps (current in excess of this will trip it), interrupting rating (how many amps the breaker can handle during a short circuit) and in volts (is the difference of potential or the pressure that…

### How many amps in a wall outlet?

Typically either 15 A or 20 A. You can be sure by checking the breaker value in the electric panel that controls the outlet. If it were a 20 A breaker then the total amps for all outlets on the breaker would be 20A. usually you don't want to exceed 80% of rated current so in reality for a 20 A breaker you would have a 16 A capacity.

### How many breaker amps can you use on a 70 amp panel?

The amperage that can be used from a service distribution panel is governed by the amperage of the main breaker. If the main breaker is 70 amps then up to a maximum of 70 amps can be taken from the panel before the main breaker trips on an over current fault. Any combination of branch circuits can come off of this panel as long as there is slots left for breakers to be installed. If…

### What size breaker for a 208 volt single phase motor that pulls 1.4 amps?

208 volts is not a common single phase voltage but you could just size your breaker to the capabilities of the conductor. 208 is normally a phase to phase voltage <<>> Many 230 volt motors can be connected to lower voltage supplies. These motors can be connected to supplies of 208 and 200 volts. The code requirement is that the 230 volt full load amperage of the motor be increased by 10% and 15% respectively…

### How do you determine maximum HP possible on a single phase?

1. What voltage is the circuit? 2. What is the overcurrent device (breaker/fuse) rating? 3. What is the branch circuit wire size? The wire must be sized to carry the full breaker rated ampacity The branch circuit should not be loaded to greater than 80% of the breaker's rating. Volts X 80% of breaker amps = watts available. Single phase motors rule of thumb is 1100-1400 watts per HP. The precise maximum HP will depend…

### How many watts can a 20 amp breaker handle?

Answer for USA, Canada and countries running a 60 Hz power supply service. Watts= voltage X amps At 120 volt total watts would be 2400 at 20 amps. The electrical code states that circuit conductors that are fed by this breaker on a continuous load can only be loaded to 80%. #12 wire rated at 20 amps, derated to 16 amps continuous = 16 x 120 = 1920 watts, #10 wire rated at 30 amps…

### Who many amps are needed to feed a 600 v to 480 v 3 phase 70 KVA transformer?

The equation for amperage when the kilowatts are known is Amps = kVA x 1000/1.73 x Volts. The electrical code states that a feeder for a transformer has to be rated at 125% for the primary and secondary load amperages. The amperage on the primary needed to supply a 70 KVA three phase transformer to its full capacity at 600 will be 68 amps. 68 x 125% = 85 amps. A #4 copper conductor with…

### Is it OK to have 250 A of breakers in a 100 A panel?

Yes. Many installations have breaker totals higher that the main breaker of the panel. It is worked on a percentage basis. Not all of the breakers will be on at the same time. In a home, on a 100 amp panel the average load is 50 - 60 amps. The 100 amp main breaker is protecting the 100 amp rated panel board. If the load current goes higher that the panel board is rated at…

### How many amps in 17000 watts?

At 240v single phase it's 70.8 amps. If it runs on 2 wires plus ground, take the voltage rating of the equipment and divide that into the watts to get amps. At 480v 3 phase it's 25.8 amps. At 208v 3 phase it's 47.2 amps. <<>> There are zero amps in 14 kW. A voltage needs to be stated. I = W/E, Amps = Watts/Volts.