What gauge wire do I need for a 30 amp dryer circuit?

For a 30-amp dryer circuit in Ontario, you need 10 AWG copper wire - this is the minimum size required by the Ontario Electrical Safety Code for a 30-amp circuit.

The 10 AWG copper wire is rated for 30 amps and is the standard for electric dryer installations. You'll need a 3-wire cable (10-2 with ground) or 4-wire cable (10-3 with ground) depending on your specific dryer requirements and local code interpretations. Most modern dryers require a 4-wire connection with separate neutral and ground conductors.

Important ESA Requirements: This type of electrical work requires an ESA permit in Ontario. Installing a new dryer circuit involves running new wiring from your electrical panel to the dryer location and installing a proper 30-amp NEMA 10-30R or 14-30R receptacle. The circuit must be protected by a 30-amp double-pole breaker in your panel.

Safety and Legal Considerations: While you might be tempted to tackle this as a DIY project, running new circuits requires ESA permits and inspections. Only licensed electricians can legally pull permits for this work in Ontario. Improper installation can lead to fires, electrocution, or insurance claim denial if something goes wrong.

The wire gauge is just one part of the equation - proper installation includes ensuring your panel has adequate capacity, using the correct breaker type, proper grounding, and meeting all clearance requirements around the receptacle location.

Next Steps: Contact a licensed electrician to assess your panel capacity and run the new circuit. They'll handle the ESA permit, ensure code compliance, and schedule the required inspection. For a dedicated dryer circuit installation in Ottawa, expect costs between $300-600 depending on the wire run length and any panel modifications needed.

For a free estimate on your dryer circuit installation, request a quote from Electrical Ottawa - we're ESA-licensed and handle all permit requirements for you.

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