Wiring needed for an automatic gate opener?

Most automatic gate openers require a dedicated 120V circuit with GFCI protection, though some larger commercial units may need 240V. The specific wiring requirements depend on your gate type, opener size, and distance from your electrical panel.

For residential swing gates, most openers draw 3-5 amps and can run on a standard 15-amp circuit. However, TSANB requirements mandate that outdoor electrical equipment have GFCI protection, so you'll need either a GFCI breaker in your panel or a GFCI outlet near the opener. The circuit should be dedicated to avoid nuisance tripping when the gate motor starts up.

Sliding gates typically require more power due to the heavier load, often needing 20-amp circuits. Commercial or heavy-duty residential units may require 240V service, especially for gates over 1,000 pounds or in high-wind areas common along New Brunswick's coast.

Underground wiring is the preferred method in New Brunswick, given our harsh winters and ice storms. You'll need direct-burial cable rated for wet locations, buried at least 18 inches deep (though 24 inches is better given our frost depth of 1.2-1.5 meters). The cable run from your panel to the gate location will likely require 12 AWG wire for most residential applications, though voltage drop calculations may require 10 AWG for longer runs.

Additional considerations for New Brunswick installations include a control circuit back to the house for keypads or remote operation, often using low-voltage wire that can share the same trench. Many homeowners also install backup battery systems given how frequently we lose power during ice storms - these systems keep your gate operational during outages.

TSANB permits are required for this installation since you're adding a new circuit and outdoor electrical equipment. The work must be done by a licensed electrician who will need to coordinate with your gate installer to ensure proper electrical rough-in before the gate mechanism is installed.

The total cost for electrical installation typically ranges from $800-1,500 depending on the distance from your panel and whether trenching is included. This covers the new circuit, GFCI protection, underground wiring, and TSANB permit/inspection.

Safety note: Never attempt to wire gate openers yourself - the combination of outdoor installation, underground wiring, and motor loads requires professional expertise to meet code and ensure safe operation.

Need help finding an electrician for your gate opener installation? New Brunswick Electrical can match you with licensed professionals experienced in outdoor electrical work.