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Since about the middle of the 20th Century, 120VAC has been the nominal voltage for the United States and Canada. However, the voltage provided at the wall can be between 114 and 126VAC as a 5% margin above or below is deemed acceptable for general use. If one needs more accurate regulation, one can purchase a "line stabilizer" that has tighter tolerances.

Household appliances often list 110, 115, 120 or 125VAC as their input voltages but as long as they have either a NEMA1-15P (two-bladed) or NEMA 5-15P (two-bladed with a ground pin) plug, they will work in the modern North American outlet.

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Q: What year did 115 volts changed to 120 volts?
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Related questions

What if you only get 118 volts on a 120 outlet?

There is no problem with that voltage. As long as the voltage is plus or minus 5% of the nominal voltage of 115 volts it is considered to be in the 120 volt range.


Will a 115 volt converter from 240 volts harm a 110 - 120 volt appliance?

The appliaance is designed for 110-120 v so if it is fed at 115 v that is quite OK.


Can you install a 120V baseboard heater on 110 amp power service?

Yes. The voltage of 120 volts is a nominal figure. The utility company has a plus or minus tolerance from 110 to 120 volts. This tolerance is based on the figure of 115 volts.


Can a 240 volt sub panel run 115 volt motor?

In Europe 240 volts is standard, so no a 115 volt motor will not work. In USA 120 volts is standard, so if your sub-panel has 120 volts, (check with voltage meter) then yes. Read carefully, To get 240 volts in a sub-panel in USA the electric company brings two (2) wires, each wire has 120 volts, 120 + 120 = 240. One of those 120 volts will run your motor. Look for the wires from the electric company and check them with your voltage meter. If this is a commercial application you will need to call an electrical contractor, power companies for commercial applications do not follow the above.


Which countries use 138 volts?

No country in the world uses 138 volts. They use 100, 110, 115, 120, 127, 210, 220, & 240.


Can 110 volt be used for 115 volt?

Yes - usually house voltage varies from 110 to 120 volts.


Can you plug a 115V appliance into a 110V outlet?

Yes you can safely do this. Most appliances that are marked 115 volts will operate on outlet between 110 and 120 volts safely.


Can a 120 volt game be played in a car that is equipped with 115 volt?

yes, most 115 volt devices will work with any voltage from 100 to 130 volts with no problem.


What is 50 percent of 120 volts?

50% of 120 volts = 50% * 120 = 0.5 * 120 = 60 volts


How does a 3-phase 115 volt power supply measure 200 volts in-between each phase?

You should have about 230 volts between any pair of 3-phase service legs: L1-L2, L2-L3, L3-L1. If the voltage measured between any one pair results in low or no voltage, then you have a fuse or circuit problem.


Can you plug a 110V appliance into a 115V outlet?

120 Volts and 115 Volts refer to the same thing in the US. Residential electricity is provided at 120 Volts from the utility. High current devices such as motors are often rated at less than the supplied voltage (such as 115 Volts) because it is expected that there is a small amount of voltage drop in the circuit feeding them. The National Electric Code allows a 5% drop in voltage from the electric service so a 5 Volt drop from 120 Volts is OK.


How many volts in a standard household outlet?

In the US a general purpose receptacle outlet would be 120 volts; England 240 volts, France 115 volts, Libya 127 volts, Okinawa 100 volts, Tanzania 230 volts . . .; all depends on where your house is.