[czars]

I was looking at my service panel and discovered that a single 2 pole 20A breaker is being used to provide power to both a 120 v load (using a neutral) and and 240 v load without a neutral). The combined load is less than 10 amps. Is this arrangement permitted by the NEC?

 

[rjniles]

Yes, you have a MWBC (Multi Wire Branch Circuit) with line to line (240) and line to neutral (120) load.

 

[stickboy1375]

Yes, done all the time, I generally do it when an air handler is 240v and I need a 120v receptacle located at the unit as well.

 

[ddawg16]

Yes, done all the time, I generally do it when an air handler is 240v and I need a 120v receptacle located at the unit as well.

I like that......that way if you kill power to ether ckt....your killing both....better than have your 121 power from a different breaker.

 

[rjniles]

Yes, done all the time, I generally do it when an air handler is 240v and I need a 120v receptacle located at the unit as well.

I am not sure I would like that. You turn off the air handler and you lose power to the receptacle for lights and tools.

Unless you use a disconnect for the air handler only.

 

[stickboy1375]

I am not sure I would like that. You turn off the air handler and you lose power to the receptacle for lights and tools.

Unless you use a disconnect for the air handler only.

Of course a disconnect is at the AHU... and besides, money is always an issue, so that's what they get.

 

[stickboy1375]

I like that......that way if you kill power to ether ckt....your killing both....better than have your 121 power from a different breaker.

Nope.... and I really don't care... Money is time, and time is money.