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View Full Version : How do I get the 208v to 120v?


rdvarin
Oct 8, 2013, 04:58 PM
I am getting a read of 208 on some wires on the electrical outlets and 120 on some how do I get the 208 to 120.

stanfortyman
Oct 8, 2013, 05:02 PM
I am getting a read of 208 on some wires on the electrical outlets and 120 on some how do I get the 208 to 120. Whoever wired your receptacles was clueless and could potentially do some very real damage if you use those receptacles.
Find a real electrician who can correct this.

ma0641
Oct 8, 2013, 05:25 PM
Is this your house or commercial bldg. 208 is associated with 3 phase wiring, very uncommon in a house unless there was a shop with heavy equipment. Tell us more please but don't dive into the box!

donf
Oct 9, 2013, 06:42 AM
A 208 v receptacle is shaped different than the normal household receptacle.

A conventional plug will not fit it. Also, a residential household will normally have two voltage levels present, 120 Volts and 240 volts.

It takes a special 3 phase transformer configuration to create a 208 V circuit.

So my immediate question is what are you seeing this 208 v on? If it is a normal household duplex 120V 15 or 20 amp receptacle, then you have a serious problem.

If this circuit is part of a "Multiwire" circuit, then the "Neutral" for this circuit is open and you are seeing 240 V. In turn that means that anything you plug into that circuit will fry.