O/T electrical question

OPTION IF YOU HAVE AVAILABLE PANEL SPACE FOR 3 SINGLE POLE BREAKERS AND ARE GONNA DO THIS YOURSELF

1a) You could still run 3 totally seperate 120 volt circuits, one to washer one to dryer one to freezer, and it may be considered by some as "overkill". Each circuit would be fed by a 120 volt single pole 20 amp breaker in the panelboard with 12/3 wire (Black Hot, White Neutral, Bare/Green quipment Ground) to a 120 volt 3 prong grounding type NEMA 20R receptacle for the individual appliance.

OPTION IF YOU ONLY HAVE AVAILABLE PANEL SPACE FOR 2 SINGLE POLE BREAKERS

1b) Run a regualar 120 volt 20 amp circuit (NOT the multi wire) for BOTH the Washer n Dryer. Assuming they are setting side by side, a standard 120 volt 20 amp 3 prong grounding type NEMA 20 R Duplex Receptacle (served by 12/3 wire and a single pole 120 volt 20 amp circuit breaker in the panel) would have the 2 outlets for both appliances n youre offfff fff to the races. NOTE this depends on the actual loads but may work !! Then run another seperate 120 volt 20 amp circuit for the Freezer with a 120 volt single pole 20 amp breaker and 12/3 wire.

OPTION IF YOU HAVE 3 SPACES AVAILABLE IN THE PANEL AND PREFERABLY GONNA HAVE A PROFESSIONAL ELECTRICIAN DO THE WORK

2) You could run whats called a "multi wire branch circuit" to serve BOTH the washer n dryer. That would require a 2 pole 20 amp circuit breaker in the panel and 4 wires, 2 (Red n Black) Hots, one White Neutral, one Bare/Green Equipment Ground) to the 120 volt 20 amp NEMA 20R 3 prong grounding type appliance receptacles.

NOTE the Multi Wire Branch Circuit of 4 wires works by serving one receptacle (say dryer) on Phase A (one leg of 120 volts to Neutral) and the other (say washer) on Phase B (other leg of 120 volts) AND A SINGLE COMMON WHITE NEUTRAL. If the currents were equal on each Phase leg (NOT withstanding different lag angles caused by inductive or capacitive non pure resistive loads) the Neutral current would be zero. However, since the loads are high inductive being motors with poor power factors, there could well be some Neutral current even if the pure resistive loads were equal..... .. That circuit might be considered as more hazardous to a non electrician, since 240 volts (twice the voltage of a regular 120 volt branch circuit) is present across the 2 hot phase A and B wires while only 120 volts is present between the hot phase wire and Neutral (or ground) on the regular 120 volt branch circuit. It may be possible to use a duplex receptacle having the ties removed so each outlet can be served by a different phase wire, say Phase A Black feeding the top receptacle n Phase B Red feeding the bottom WITH A COMMON WHITE NEUTRAL and the bare/green equipment ground.

Then, of course, the other circuit for the Freezer ONLY

3) I WOULD NOT use this option, I doubt it would handle alllll lll 3 loads (depends on diversity and actual loads, but if freezer cycled at same time washer n dryer were running and/or cycled, breaker may well trip),,,,, ,,I suspect it may NOT be NEC permissible,,,,, ,,

It would be one 120 volt 20 amp circuit for alllll l three loads ITS A BAD IDEA AND LIKELY NOT EVEN PERMISSIBLE AND MAY NOT HANDLE ALL LOADS SCRATCH IT LOL

Hope this helps, I guess the options would be decided based upon how many spaces are available in the panel and if you or an electrician are gonna wire a multi wire branch circuit should that option be used.

Best wishes n God Bless, keep safe

John T Retired EE

Washer and dryer can share a 20 amp circuit, but a better arrangement is to put them on opposite legs of a three-wire circuit. (Each leg has a separate 20 amp circuit breaker.) The main advantage of the three-wire circuit is that when both appliance are running, each gets more voltage than it would get on a dedicated two-wire circuit. (This is because there is less current flowing through the neutral, which eliminates some of the voltage drop.)

So there isn't diversity and it would be better (some may call it overkill, but other than cost there's no harm) to run separate circuits and separate breakers even if you have to hand an extension on the main breaker box.

In addition, on the freezer circuit, put a night light. That way you can see if there's power to the freezer without having to wait for the frozen stuff to thaw. Keep spare bulbs for the night light. Think of how much the food in the freezer is worth, you want its power to be the most reliable so you don't want to chance it's breaker being tripped by the combination of freezer, dryer and washer starting at the same time after a power outage. Keep 'em separated.

Gerald J.

For a typical 240 volt dryer branch circuit, you would need to use a 2 pole 30 amp 240 volt circuit breaker at the panel and run 10/3 wire (2 hots and one equipment ground) to the 240 volt 30 amp 3 pole dryer receptacle.

A freezer (failry decent load) ought to have its own 120 volt 20 amp branch circuit, which requires a 120 volt 20 amp single pole circuit breaker in the panel and use 12/3 (1 Black Hot, 1 White Neutral, 1 Green or Bare Equipment ground) wire to a standard 120 volt 20 amp NEMA 20R duplex receptacle.

A washing machine uses the same as above, its a 120 volt 20 amp branch circuit with 12/3 wire (1 hot, 1 neutral, 1 ground) serving a 120 volt typical household NEMA 20R duplex receptacle.

NOTE It may be possible (depends on actual full load currents of the appliances and local NEC authority) to use a single 20 amp branch circuit to feed BOTH the freezer and washing machine, it would use the same 1 pole 20 amp 120 volt circuit breaker in the panel and use 12/3 wire (1 black hot, 1 white neutral, 1 bare/green equipment ground) but just have a receptacle for each appliance (i.e. 2 receptacles on the single common branch circuit) or even a single duplex receptacle if the appliances were side by side.

HOWEVER I would prefer a freezer to be served by its own dedicated 20 amp 120 volt branch circuit with nooooo o other receptacles or loads on that circuit, plus the load sizes or the NEC may require the freezer to be on its own circuit regardless. Thats how Id do it personally

Best wishes,

John T Retired Electrical Engineer