Different voltage systems have been adopted and used by various countries across the world. Canada uses standard system voltages at various facilities and industries across the nation. Although sharing some voltage systems with US, some are only unique to Canada.

120/240V Single Phase 3 Wire System

120-240-volt-split-phase

Voltages Obtainable:
Line to Neutral Voltage: 120V
Line to Line Voltage: 240V

This system voltage is primarily used in residential dwellings as well as commercial offices. The 120V is primarily used for receptacles, lighting, and other small loads. The 240V is used for larger loads such as ranges (stoves) and washer/dryers. This system is often reffered to by electricians as a split-phase system, since the 120V is actually obtained by center tapping the 240V secondard winding in the transformer. This mid point or center tap is grounded and end up being the neutral conductor.

120/208V 3 Phase 4 Wire System

120-208-volt-system-3-phase

Voltages Obtainable:
Line to Neutral Voltage: 120V
Line to Line Voltage: 208V

This system voltage is used in industrial applications across Canada. The 3 phase 208V is useful for powering equipment such as motors and HVAC units. The 120V is used for powering receptacles and lighting circuits. The ability to power single phase loads and three phase loads from the same system makes this is appealing system voltage in the industry.

347/600V 3 Phase 4 Wire System

347-600-volt-system-3-phase

Voltages Obtainable:
Line to Neutral Voltage: 347V
Line to Line Voltage: 600V

This is another system voltage that is common in industrial and commercial applications. The 600V is used for power larger 3 phase HVAC units and motors. The 347V isĀ used for lighting circuits in the facility, eliminating the need of a 120V feed for lighting. This system is unique to Canada, as is not found in the US. The US instead uses a 277/480V system for similar applications.

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