Do Wattwatchers Auditor devices support three phase three wire (3P3W) configurations without a neutral?

No, Wattwatchers Auditor devices do not support 3P3W systems.

Some commercial and industrial load may use a three phase three wire system for balanced loads like motors.

Wattwatchers Auditor devices require a neutral connection for the power supply and voltage references.

Therefore, Wattwatchers Auditor devices can only be used on Three Phase Four Wire (3P4W) systems that have 3 active conductors plus a neutral connection.

Please refer to our Wiring Diagrams for more information.