It may not damage the dryer. But....if the dryer tries to use more than 20 amps, or if anything else is connected to the breaker totaling MORE than 20 amps, the breaker will pop.
The breaker disconnects (throws, pops, etc.) if there is too much current being drawn. Too many light bulbs, heaters, stoves, etc. This is designed as a safety so that wires don't melt, fires start and so on.
Consult the manufacturer to see if is OK. Or at least look at the label on back to see how many amps it uses. If it's even close to 20 amps, it might be good to have an electrician see about upgrading the breaker/ wiring.
Hard wired means that there is no plug and receptacle in the circuit powering the dryer. What you will find is a metal jacketed cable that will come out of the wall or floor and go right into the dryer.
It should take a two pole (220V) 50 amp breaker and matching plug wired with # 8 or # 6 gauge wire. Check your manual.
The dryer plug is probably wired wrong, check where the cord is wired to the dryer first. Unplug the dryer befor starting to remove any screws or panels
A 30 amp dryer cord is the cord that comes attached to new clothes dryer. It is used to transfer the voltage from the wall receptacle to the dryer appliance. Earlier model dryers used to be hard wired directly from the distribution panel to the dryer. Hard wiring is no longer the case as people wanted to take there appliances with them when they moved from one home to another. New homes are now wired with 30 amp receptacles situated in the wall alcove where the dryer is to be situated. This allows the home owner to plug in the dryer without the hiring of an electrician to legally make the connection. Dryers that have been previously been hard wired can be upgraded with a 30 amp cord kit that can be purchased at any hardware store. Following the instructions included with the kits, any home owner can make the conversion and then connect their dryer into the dryer receptacle.
50 amp breaker wired with AWG # 6 wire.
You use the correct size breaker depending on the size wire in the circuit. If the circuit is wired with AWG #12 wire use a 20 amp breaker. If it is wired with AWG #14 wire then use a 15 amp breaker.
A drawout breaker has two parts (base and breaker). The base is wired to the load frame and bolted in. The breaker slides in and out of the base, and connects physically and electrically to the base (so it's easy to rack out for maintenance). A fixed mounted circuit breaker is bolted directly to the enclosure and wired to the load frame.
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It is not the number of bulbs that you worry about. It is the wire size that is your concern. If the circuit is wired with AWG 12/2 wire then use a 20 amp breaker. If it is wired with a AWG 14/2 wire then use a 15 amp breaker. You are protecting the wiring with the correct size breaker.
A 30 amp breaker wired with AWG #10 wire.
Standard recpt. for house hold is 15 AMPS wired usually with 14 awg, but applicance circutis are 20AMPS wired with 12awg. Dryer rect. are 30AMPs wired with 10 awg and Ovens are 50 Amps wired with 6awg.
30 amp wired with AWG # 10 wire.