208 @ 240

[1793]

I have a customer who wants to buy a Unit Heater and the nameplate reads 208V 1 phase. How would this heater work / function at 240V 1 phase?

I have suggested he purchase a heater rated 240 / 208.

Thanks in advance.

 

[Buck Parrish]

It should work fine. It will be nice and toasty in their.

 

[don_resqcapt19]

A heater designed for use with 208 may over heat when connected to a 240 volt supply. The heat output will be 1.33% of nameplate.

The output percentage should be 133% not 1.33% as shown above.

 

[bob]

You may see just a little smoke leaking out of the heater.:grin:

 

[gar]

091028-2226 eST

don's decimal point needs to move 2 places to the right.

That much over voltage might damage the heater. Very dependent on the design criteria for the heater.

.

 

[don_resqcapt19]

091028-2226 eST

don's decimal point needs to move 2 places to the right.
...

.

Yes, it does...thanks. I will make a correction in my post.

 

[infinity]

I've had an old single phase 208 volt heater in my garage for years operating at or above 240 volts. Although I only use it occasionally it's still going.

 

[iwire]

I have an extension cord supplying my garage and it's worked fine for about 8 years.:grin:

That does not mean I would do that for a customer.

 

[augie47]

I have an extension cord supplying my garage and it's worked fine for about 8 years.:grin:

That does not mean I would do that for a customer.

ans your panel cover has proably been off as long (mine has)