Single-phase and three-phase power
Homes and small tools use single-phase power. Large motors, industrial equipment and commercial buildings often use three-phase.
The short version
Single-phase
Standard in Canadian homes: 120 V outlets and 240 V for large appliances. Most small and medium generators supply this.
Three-phase
Used by large motors, pumps, elevators and commercial buildings. Common Canadian service voltages include 208 V, 480 V and 600 V. Larger generators can supply three-phase.
How to check
Look at the nameplate of the equipment or the main panel label. If it says 3 phase, or lists two or three line voltages, you need three-phase.
Tell us the voltage and phase when you request a quote. If you are unsure, send a photo of the nameplate or the panel. The size guide covers how much power you need.
Tell us what you need
We reply by email with a quote.