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Can you run 120V on 240V?
Yes, in the same but reverse way if you connect 120V appliances to 240V supply then insulation designed for 120V supply get damage under 240V supply.
What does 120V 240V mean?
1 Answer from this member: Basically, it means the dryer requires a 240 volt voltage supply to plug into. The 120 means that there are components inside the dryer that operates on 120 volts and the heating element requires 240 volts to operate.
What is the difference between 120V and 240V?
Most of the standard 120V is for lighting and small appliances and uses this line/neutral configuration. You will see these typically in the panel or at the receptacle as a black and white wire. So in a 240v system there will be no white wire, just either two black wires or more commonly a black and red conductor.
Is it cheaper to use 120V or 240V?
The simple answer to that is that they are almost the same cost to operate or are just within a few dollars. Most people think that 240V is cheaper because it uses half the amps that 120V uses. Amps isn’t what consumers pay for, it’s actually the wattage used by the electrical device.
Can a 120V outlet be connected to a 240V outlet?
The code compliant way to do this is to add a sub-panel at the end of the 240V feed and then have separate breakers feeding the 240V and 120V outlets. I believe it is against code to have both voltages of outlets directly fed by the same breaker.
Can a 120V breaker be connected to a 240V breaker?
I realize that as long as the breaker is only 120V, the wire is just bigger than it needs to be, but I worry that someone might see the 240V wire at the breaker and try connecting a 240V circuit without checking for smaller gauge wire downstream. Best I can tell, the 240V cable runs in one piece from the breaker box all the way to the outlet.
Can a 240V circuit feed a 120V circuit?
Well, in fact it is common practice. One common scenario is for a residence to have a 240/120 3-wire ( two ungrounded hots + 1 ground) unused range circuit feed two small 120V appliance circuits. This is covered in the 2014 NEC 210.24 under the term tap conductors and it has very specific rules to follow.
Why do 240V circuits not require neutral lines?
They run a 240 V line to the plug, wire two hot lines each to the hot on a different plug, wire the one neutral line to both neutrals, and break off the tab connecting the two hots. AC current requires a return path, electricity goes out one way and back the other.