Have to wire a cloths dryer tomorrow, so.... need to know...?

Question

30 amp breaker? That's my guess, but if anybody actually knows, I'd appreciate a yes or no. Also I was going to use a 10-3 wire for a 4 pin 220 plug in - does that seem OK - or should one use 8-3???

Thanx

Answer 1

A 30 Ampere, 240 Volt circuit w/#10 AWG is generally correct for most electric clothes dryers. Before you start, you better check the owner's manual, or installation instructions. The nameplate on the back of the dryer will also give the info you are looking for.

The AWG size, and the overcurrent protection requirements may vary slightly from manufacturer to manufacturer; it is always best the check. Also, if you are using older materials that you have had laying around for a while, make sure that the cable assembly is Type NM-B; if it is not, the insulation rating may not be high enough, and you should purchase some new cable.

As for the type of receptacle you install, that depends on whether your house is old enough to not have a grounded system. Since it sounds like you are replacing a gas dryer with an electric; you will need the 10-3 (typical), w/ground, unless you do not have a grounded system. If you already had an electric dryer, with just a three-opening receptacle, you would be allowed by the National Electrical Code to keep that installation, and replace the 4-prong plug connector with a listed three-prong cord and plug assembly. The NEC does not require that you make an electrical system (or a single receptacle) retroactively compliant. Most appliance manufacturers are still producing dryers, ovens, and cooktops that may be installed using the older 3-wire configuration; although most appliances now come from the factory set up with a 4-wire cord and plug (if they are intended to be cord & plug connected).

If you do end up installing a new circuit & receptacle, be sure that the equipment grounding conductor is installed correctly at BOTH ends of the run. If it is supplied by a feeder panel (sub-panel), that means it cannot be landed on the neutral bar, but must be bonded to the panel cabinet by means of a listed, approved ground bar or lug.

I must also point out, that if you are asking this question; you are probably not what the NEC refers to as a "Qualified Person". That means you are safer hiring a qualified, licensed electrician to do the job for you. [See NEC Article 90.1 (C).]

Answer 2

Yes, they are normally a 30amp breaker, which would mean

10 gage wire. But as far as the outlet goes it depends on

the dryer itself. Some need a 3 pin and some a 4 pin. you

need to look at the dryer itself first or look it up on the Internet.

Hope this helps.

Answer 3

I suggest that you use at least a 40 amp breaker for safety. If I were you I would use  8-4 wire as  most 220 volt systems have 4 wires to them.

Be safe

Hope this helps

ROSCoooooooooooooooooooooooooooooooo