Will a 240V water heater work on 208V?
if the breaker is listed 120/240V then you are fine but if the breaker is a 120/208V then it is not supposed to be in that panel enclosure…IF the panel inclosure is a 120/240V listed panel…and the voltage you are dealing with is truly 120/240V and indeed not 208V…
Are all water heaters 240V?
Most residential electric water heaters use 240 volts. Their are single element water heaters that operate on 120 volts and single element water heaters that operate on 240 volts. Check the label on your water heater for the voltage rating. Breakers are usually labeled, however, they can be labeled wrong.
Will a 208V heater work on 120V?
Are you talking about wiring the 208V rated elements to 120V ? Nope. Dyxlexia kicked in. :laughing: I was thinking backwards. Those elements won’t last, as they will draw more than their rated wattage at a higher impressed voltage.
Can I use 208 240?
A 208V rated motor should not be run on 240V, nor should a 230V rated motor be run on 208V, motors rated 115/200-230V or 115/208-230V are fine either way, older 3Ø motors rated 220/440V will be fine on either a 208 or 240volt supply when connected for lower voltage.
Can a 120V water heater run on 240V?
Keep in mind that you can’t operate a 120V water heater on 240V AC. If so, the heater element may damage or burn out which may leads to fire.
Is there any issue using 240 water heater element on 208 service?
No code issues, unless the manufacturer’s literature specifically states that it is for use only on a 240 volt system. But there is an operational concern. It will operate at 75% efficiency, and will heat water that much slower. The 75% is based on (208/240) squared. is there any issue using 240 water heater element on 208 service?
What’s the difference between a 208v and 240V heater?
If properly labelled, the 208V heater kit will have a lower resistance than the 240V heater kit so that it can draw more current to keep the product of voltage and current (heating watts) the same in the different environment. The 208-240 kit may be a little different.
How many Watts Does a 240V water heater draw?
It’ll take longer to heat the water that’s about the only issue I see. The heating element is a purely resistive load, so it should draw less current than if there were 240V going to it, proportional to the voltage being supplied (so it will be 208/240 times the current). a 4500 watt element rated at 240 volts is really 3380 watts at 208 Volts.
Can a 240V water heater be a 75 kVA transformer?
A transformer (480 volt primary) rated for 150 KVA does not become a 75 KVA-rated transformer, just because you choose to supply it with a 100 amp breaker. A 5 HP motor does not become a 3 HP-rated motor, just because you choose to use it to supply a 3HP mechanical load.
If properly labelled, the 208V heater kit will have a lower resistance than the 240V heater kit so that it can draw more current to keep the product of voltage and current (heating watts) the same in the different environment. The 208-240 kit may be a little different.
No code issues, unless the manufacturer’s literature specifically states that it is for use only on a 240 volt system. But there is an operational concern. It will operate at 75% efficiency, and will heat water that much slower. The 75% is based on (208/240) squared. is there any issue using 240 water heater element on 208 service?
It’ll take longer to heat the water that’s about the only issue I see. The heating element is a purely resistive load, so it should draw less current than if there were 240V going to it, proportional to the voltage being supplied (so it will be 208/240 times the current). a 4500 watt element rated at 240 volts is really 3380 watts at 208 Volts.
A transformer (480 volt primary) rated for 150 KVA does not become a 75 KVA-rated transformer, just because you choose to supply it with a 100 amp breaker. A 5 HP motor does not become a 3 HP-rated motor, just because you choose to use it to supply a 3HP mechanical load.
