1-6
IM WT310E-01EN
Wiring Systems (For procedures, see section 2.1)
The wiring systems that you can select vary depending on the model.
WT310E and WT310EH
The WT310E and WT310EH are only equipped with one input element. You can measure single-
phase, two-wire systems. Because there is only one input element, you cannot select different wiring
systems.
WT332E (Two Input Element Model)
The WT332E is equipped with two input elements (element 1 and element 3). On the WT332E, you
can select the following wiring systems.
Wiring System
Description
Elements
1P3W
Single-phase, three-wire
Element 1 and element 3
3P3W
Three-phase, three-wire
Element 1 and element 3
The measured data when a single-phase, two-wire system (1P2W) has been specified is the measured
data for elements 1 and 3.
The measured data for a single-phase, two-wire system will be measured correctly regardless of which
of the above wiring systems you select.
WT333E (Three Input Element Model)
The WT333E is equipped with three input elements (element 1, element 2, and element 3). On the
WT333E, you can select the following wiring systems.
Wiring System
Description
Elements
1P3W
Single-phase, three-wire
Element 1 and element 3. Element 2 is 1P2W.
3P3W
Three-phase, three-wire
Element 1 and element 3. Element 2 is 1P2W.
3P4W
Three-phase, four-wire
Elements 1, 2, and 3
3V3A
Three-voltage, three-
current method
Elements 1, 2, and 3
The measured data when a single-phase, two-wire system (1P2W) has been specified is the
measured data for elements 1, 2, and 3. The measured data for a single-phase, two-wire system will
be measured correctly regardless of which of the above wiring systems you select.
1.2 Measurement Conditions
