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I assume you have a 30 amp two pole 220 volts breaker. Check the voltage source. If the source voltage is 220V, but out let voltage is 120 then the breaker must be faulty, a high resistance or partial open circuit could have caused the reduced voltage at the breaker outlet.

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7y ago
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7y ago

On a single phase split secondary distribution panel you will never get 240 volts from a single breaker. A single breaker only has the capacity output of 120 volts. It takes two adjacent breakers to give an output of 240 volts. The two pole breaker takes up two slots on the panel board. From either of these two breaker outputs to ground or neutral you will receive a reading of 120 volts. To read the 240 volts the reading has to be taken across both of the breakers output.

Test one side of the breaker to neutral, it should read 120 volts. Test the other half of the breaker to neutral it should read 120 volts. Now take the reading between the two output legs of the breaker. This reading should be 240 volts. If you do not get all three readings then the breaker is faulty and should be replaced.

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Q: Why am I only getting 120 volts from a 30 amp breaker that should be feeding 220 volts?
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How many volts can you draw off of a 15amp breaker?

On a 15 amp breaker, you can draw up to 120 volts in a standard residential circuit. The voltage remains constant at 120 volts, but the amperage capacity is what is limited by the 15 amp breaker.


You are getting 110 volts after the circuit breaker but only 50 volts at breaker why?

This could indicate a voltage drop in the circuit due to poor connections, damaged wiring, or a faulty breaker. Check for loose connections, damaged wires, or a malfunctioning breaker as possible causes of the voltage drop. It's important to address this issue promptly to ensure safety and proper electrical function.


How can you check if you have 240 volts on a 30 amp two pole breaker?

To check if you have 240 volts on a 30 amp two pole breaker, you can use a digital multimeter set to measure voltage. Turn off the breaker, then test between the two breaker terminals and ground. If you read around 240 volts, it indicates that the breaker is providing the right voltage. If not, there may be an issue with the breaker or the wiring.


What circuit breaker to install for 10 amp 250 volt circuit?

For a 10 amp, 250 volt circuit, you should install a circuit breaker rated for at least 10 amps and 250 volts. A common option would be a single-pole, 10 amp circuit breaker designed for 240-250 volt applications. Be sure to check the specifications and compatibility with your specific electrical panel.


How many watts will a 60 amp 2pole breaker handle?

A 60 amp 2-pole breaker can handle up to 14,400 watts (60 amps x 240 volts). This is because a 2-pole breaker provides 240 volts, which is the typical voltage for larger appliances and machinery.

Related questions

How many volts can you draw off of a 15amp breaker?

On a 15 amp breaker, you can draw up to 120 volts in a standard residential circuit. The voltage remains constant at 120 volts, but the amperage capacity is what is limited by the 15 amp breaker.


What kind of wire do you use for 120 volts and what amp breaker do you use?

#12/2wground & a 20 amp breaker should be enough for lights,receptales.


You are getting 110 volts after the circuit breaker but only 50 volts at breaker why?

This could indicate a voltage drop in the circuit due to poor connections, damaged wiring, or a faulty breaker. Check for loose connections, damaged wires, or a malfunctioning breaker as possible causes of the voltage drop. It's important to address this issue promptly to ensure safety and proper electrical function.


How many volts should your fuel pump be getting?

12 volts DC.


How many volts can b drawn off a 240 volt breaker?

240 volts maximum.


What should the reading at the light switch be when the switch and the light fixture is removed. I had a dimmer switch on that light it went out I checked the volts at the switch they were about 14?

On the "hot"wire that comes from the breaker panel the voltage should be from 115 to 120 volts. This is taken from the "hot" wire to either the neutral or the ground wire. If its not then you have a breaker problem or you are on the wrong scale of the test meter.


What size breaker should be used for a 3.6 kW oven?

3000 / 240 = Amps. You de-rate a breaker by 20 % for continuous load like an oven. You could get by with a 20 Amp breaker and 12 AWG wire. However, I would recommend 30 Amps and 10 AWG for an oven for the long run.


Why am I only getting 1.5 volts max to the rear window defogger when I should be getting 6 volts I have 12 volts going into the def. switch and 6 volts leaving the switch.?

lol. 12v in, only 6 out. looks like your switch is eating 6 volts. Get that out of there. then the other volt drops should come into check. You should only have a .5v total volt drop in the whole circuit; after that problems start to pop up.


What circuit breaker to install for 10 amp 250 volt circuit?

For a 10 amp, 250 volt circuit, you should install a circuit breaker rated for at least 10 amps and 250 volts. A common option would be a single-pole, 10 amp circuit breaker designed for 240-250 volt applications. Be sure to check the specifications and compatibility with your specific electrical panel.


How many watts will a 60 amp 2pole breaker handle?

A 60 amp 2-pole breaker can handle up to 14,400 watts (60 amps x 240 volts). This is because a 2-pole breaker provides 240 volts, which is the typical voltage for larger appliances and machinery.


How many amp breaker is needed for 4000 watts at 220 volts?

The equation that you are looking for is I = W/E. Amps = Watts / Volts.


Can a 15 amp breaker hold 300 watts at 120 volts?

Yes, it can.