Wiring
3.2 Connection examples
Analog input module AI Energy Meter 480VAC ST (6ES7134-6PA20-0BD0)
18 Manual, 12/2015, A5E36061895-AA
The following figures show the connection of the Energy Meter for three-phase, two-phase
and single-phase measurements. Note that the Energy Meter must always be connected via
a current transformer. The use of voltage transformers is optional.
Three-phase measurement,
4 wires
Any load
Connection with three current transformers
Three-phase measurement,
4 wires
Any load
Connection with three current and three
voltage transformers
Three-phase measurement,
4 wires
Balanced load
Connection with one current transformer