Pump Solutions #1 Corporation
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1 phase & 3 phase motors
What’s the difference between single-phase & three-phase motors?
Single-phase AC motors run on a single phase power source, and power pulsates between peak and zero.
Three-phase AC motors run on a three-phase power source, with constant power.
A single-phase motor needs two wires, a live (main) wire and a neutral wire to complete the circuit. This simple network is low-maintenance and adequate for domestic and small business applications.
A three-phase motor needs four wires, three live (main) wires and one neutral wire. The complexity of the 3-phase network makes maintenance more involved. Three phase motors are most often used in commercial and industrial applications.
The majority of commercial and manufacturing facilities use a three-phase power circuit for optimal power density.
Compared to single-phase motors, three-phase motors provide more power with the same amount of current.
Single-phase motor advantages
- Single phase motors cost less than 3-phase motors
- Wiring & set-up is simpler & cheaper
- Ideal for smaller equipment & machines requiring lower horsepower
- Low maintenance
Three-phase motor advantages
- More power for larger applications
- Constant power
- More efficient power transmission
- Safer & more reliable operation
Contact us online for help choosing the best single-phase or three-phase motor for your application.