What Size Wire for Electric Dryer? — Complete Wiring Guide

A Electric Dryer requires 10 AWG copper with a 30A double-pole on a 240V dedicated circuit. Here is the complete NEC-compliant wiring guide.

Electric Dryer Wiring Requirements
10 AWG copper
Breaker
30A double-pole
Voltage
240V
Amps
22.5A
Watts
5400W

Electric Dryer Wiring Details

Electric dryers typically draw 22-24 amps at 240V (5,000-5,800W). NEC 220.54 requires a dedicated 30A circuit with 10 AWG copper conductors. Use 10/3 NM-B cable (3 conductors + ground) for new installations. The third conductor provides the neutral needed for the 120V motor and controls. Modern dryers require a NEMA 14-30 receptacle (4-prong) — the older NEMA 10-30 (3-prong) is not permitted for new installations per NEC 250.140 because it lacks a separate equipment ground.

NEC Code Reference

The wiring requirements for a Electric Dryer are governed by NEC 220.54. Always check the appliance nameplate for specific electrical requirements — the manufacturer's specifications take precedence over general guidelines. Your local AHJ (Authority Having Jurisdiction) may have additional requirements beyond the NEC.

Pro Tip

Running a gas dryer instead? A gas dryer only needs a standard 120V, 15A outlet for the motor and controls. The energy cost difference is significant: an electric dryer costs $50-80/month for a family of four, while a gas dryer costs $15-25/month in gas plus $3-5/month in electricity.

Disclaimer: This guide is for reference only. All electrical work must be performed by or verified by a licensed electrician. Local codes may differ from NEC.

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