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to derive 120 volts from 480 volts you have to use a transformer, based on your needs. If you needed 100 amps at 120 volt single phase you would need a 12kva transformer. This is just an example.
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∙ 13y ago
To convert 480V to 120V, you can use a transformer. You would need a step-down transformer that can reduce the voltage from 480V to 120V. The transformer will have a primary winding designed for connection to the 480V source and a secondary winding for the 120V output.
Wiki User
∙ 11y agoThe way the question is stated this type of a transformer is a step up transformer. A voltage of 120 volts is applied to the primary side of the transformer and the 230 load is connected to the secondary side of the transformer. Since you also used the category Pool Heating, the transformer must be used in the control unit of the pool heating controls.
The other option is that the transformer is a step down transformer 230 to 120 volts and is used for 120 volt control voltage, the primary is then connected to the 230 volts. In the control unit, the transformer will probably be connected to the supply 230 volts circuit from the heater circuit. There should be an in line fuse between the incoming 230 volts and the primary connection to the control transformer. The fuse should be rated at 1/2 amp for proper protection.
Wiki User
∙ 9y agoTo convert 480 to 120 a transformer will have to be used. The transformer needs to be the right voltage and amp rating to handle the load that will be connected on the 120 side.
Wiki User
∙ 15y ago360
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How do you get 480v circuit from 120v?
To get 480V from 120V, you can use a transformer. A transformer with a turns ratio of 4:1 will step up the voltage from 120V to 480V. Make sure to follow proper safety protocols and consult an electrician if needed.
Formula for 7.5va convert into Amperes load comsumption?
To convert 7.5 VA to amperes, you can use the formula: Amperes = VA / Volts. For example, if the voltage is 120V (typical for household circuits), then 7.5 VA / 120V = 0.0625 amperes.
Can an overhead 400W light with built in ballast that is currently wired to use 480V be rewired to use 120V?
No, a light fixture designed for 480V cannot be simply rewired to operate on 120V. It would require a new ballast and potentially other components to be compatible with the lower voltage. It is recommended to consult a certified electrician for such modifications.
Can you convert a 30 amp 120V RV receptacle into a normal 120V outlet?
No, you cannot directly convert a 30 amp 120V RV receptacle into a normal 120V outlet. They have different wiring configurations and power capacities. It is recommended to install a new standard 120V outlet for regular household use.
37.5 amps converted in watts?
To convert amps to watts, you also need the voltage. The formula to calculate power in watts is Watts = Amps x Volts. If the voltage is 120V, then 37.5A would be equivalent to 4500W (37.5A x 120V = 4500W).
Can you feed a 208v 200amp panel from 480v 20amp circuit?
Not directly, you would need to transform 480v circuit to 120v with a transformer first.
How do you get 480v circuit from 120v?
To get 480V from 120V, you can use a transformer. A transformer with a turns ratio of 4:1 will step up the voltage from 120V to 480V. Make sure to follow proper safety protocols and consult an electrician if needed.
Can you take single phase of 120V with a hot wire and a neutral step up to 480v and then step down to 2 phases of 120V or do you have to input 2 phases of 120v to get 240V out?
Theoretically that can be done with transformers, but the power available would still be limited by the circuit breaker on the original 120 v supply.
What is low voltage transmission?
In the supply industry it refers to circuits of below 1000 volts. Common voltages used are 120v, 208v, 230v, 240v, 277v, 400v, 415v, 480v.
480 transformer to 120 ac current what is the kva on transfomer?
The kVA rating will be listed on the transformer's nameplate, which is usually on the front of the transformer. The 480v to 120v is irrelevant, because many transformers with different kVA ratings convert 480 volts to 120 volts. The kVA ratings can be different and thus affect the rated current through the transformer.
Formula for 7.5va convert into Amperes load comsumption?
To convert 7.5 VA to amperes, you can use the formula: Amperes = VA / Volts. For example, if the voltage is 120V (typical for household circuits), then 7.5 VA / 120V = 0.0625 amperes.
Can an overhead 400W light with built in ballast that is currently wired to use 480V be rewired to use 120V?
No, a light fixture designed for 480V cannot be simply rewired to operate on 120V. It would require a new ballast and potentially other components to be compatible with the lower voltage. It is recommended to consult a certified electrician for such modifications.
Can you convert a 30 amp 120V RV receptacle into a normal 120V outlet?
No, you cannot directly convert a 30 amp 120V RV receptacle into a normal 120V outlet. They have different wiring configurations and power capacities. It is recommended to install a new standard 120V outlet for regular household use.
How do you power a 480V device from 120V home or kitchen outlet?
A: My advice is do not try it 120 v will require 480v /120 or 4 times the current. assuming 100% efficiency. a transformer can do it but there will be a loss of 20% . House wiring is 15 amps per circuit . So if your whatever unit needs more the 3 amps it just cannot be done. A PWM can also do this job more efficiently but then again the total power is in question.
Can a 480V a 12 ga wire safetly carry 4 x as much power as it would at 120V?
#12 wire will carry about 20 amp 20 X 480 volts = 9600 watts 20 X 120 volts = 2400 watts 4 times.
37.5 amps converted in watts?
To convert amps to watts, you also need the voltage. The formula to calculate power in watts is Watts = Amps x Volts. If the voltage is 120V, then 37.5A would be equivalent to 4500W (37.5A x 120V = 4500W).
120V light fixtures wall mounted you want to convert to 240V for a house overseas?
It will work it you use 240 volt light bulbs.
