“Hi, I will need to run all new wiring about 80' from the panel to the dryer. Please let me know what gauge I need to use, 12/3, 10/3? Thanks, Patrick”
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We highly recommend that you check your local building codes about the required wire gauge for the ENERGY STAR® Most Efficient / Energy Star® Certified LG 7.8 Cu. Ft. Stackable Smart Electric Dryer with Dual Inverter HeatPump™ Technology - Black Steel, Model # DLHC4002B. Branch circuit wire gauge must adhere to local building codes, which almost universally adopt and amend the ANSI/NFPA 70 (National Electrical Code - NEC). While the NEC defines minimum ampacity based on load, local amendments may require larger wire for specific applications, such as to manage voltage drop over long lengths. Local codes take precedence over the NEC, but they usually start with the current NEC version. The dryer's manual advises that "If the branch circuit to the appliance is 15 ft. (4.5 m) or less in length, use UL (Underwriters Laboratories) listed No.-10 AWG wire (copper wire only), or as required by local codes. If over 15 ft. (4.5 m), use UL-listed No.-8 AWG wire (copper wire only), or as required by local codes. For a 240-volt, 30-amp electric dryer circuit spanning 80 feet, you will probably have to use 10 AWG (American Wire Gauge) copper wire. A 4-wire cable (10/3 NM-B, which includes two hots, one neutral, and one ground), and is required to meet modern safety codes (NEMA 14-30R). While 10 AWG is standard for 30A, 8 AWG can be used to minimize voltage drop over longer runs. But you should always consult with a licensed local electrician and the local building department to ensure compliance...^Ivan.
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