How do I install a transfer switch for my standby generator in New Brunswick?

A transfer switch installation in New Brunswick requires a licensed electrician and a TSANB permit — this is NOT a DIY project, as improper installation can backfeed power onto NB Power lines and electrocute utility workers.

What a transfer switch does: It's a switching device installed between your electrical panel and the utility meter that safely disconnects your home from the grid before connecting generator power. This prevents dangerous backfeed — electricity flowing from your generator back onto NB Power's lines, which can kill lineworkers restoring power during storms.

Two types of transfer switches:

Automatic Transfer Switch (ATS): Detects power loss, starts the generator, and switches over automatically — typically within 10-30 seconds. Switches back when utility power returns. Cost: $800-$2,500 for the switch plus $1,500-$3,000 for installation. Best for standby generators.

Manual Transfer Switch: Requires you to physically flip the switch after starting your generator. Cost: $300-$800 for the switch plus $800-$1,500 for installation. More affordable but requires you to be home.

Installation process (what your electrician will do):

• Pull a TSANB electrical permit


• Install the transfer switch between the meter and main panel


• Run a dedicated circuit from the generator to the transfer switch


• Wire selected circuits (manual) or the entire panel (automatic) through the transfer switch


• Install a weatherproof generator inlet box on the exterior wall


• Test the entire system under load


• Schedule TSANB inspection

New Brunswick-specific considerations:

• Generator placement: Must be at least 5 feet from windows, doors, and vents per NB Building Code. Consider snow accumulation — elevate the generator pad or install a shelter


• Fuel storage: Propane and natural gas generators avoid fuel storage issues. If using diesel, NB fire regulations limit residential fuel storage


• NB Power notification: Required when installing a standby generator with an ATS — NB Power needs to know about generation equipment connected to their grid

Typical total project cost in New Brunswick:

• Manual transfer switch system: $1,200-$2,500 installed


• Automatic transfer switch system: $2,500-$5,500 installed


• Plus the generator itself: $3,000-$15,000 depending on size

Get quotes from at least two licensed electricians experienced with generator installations. Verify they'll handle the TSANB permit and inspection.

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