2-36
IM WT310-02EN
Wiring Example of a Single-Phase, Three-Wire System (1P3W)
with Shunt-Type Current Sensors
The wiring is connected to input elements 1 and 3.
SOURCE
LOAD
N
OUT L
OUT H
OUT L
OUT H
Element 3
Element 1
EXT
EXT
C
±
± V
C
±
± V
Wiring Example of a Three-Phase, Three-Wire System (3P3W) with
Shunt-Type Current Sensors
The wiring is connected to input elements 1 and 3. Measure the line voltage using S-phase power as
the reference.
SOURCE
LOAD
R
S
T
OUT L
OUT H
OUT L
OUT H
Element 3
Element 1
EXT
EXT
C
±
± V
C
±
± V
Wiring Example of a Three-Phase, Four-Wire System (3P4W) with
Shunt-Type Current Sensors
Model: Applies to the WT333.
The wiring is connected to input elements 1, 2, and 3.
SOURCE
LOAD
OUT L
OUT H
R
S
T
N
OUT L
OUT H
Element 3
Element 1
Element 2
OUT L
OUT H
EXT
EXT
EXT
C
±
± V
C
±
± V
C
±
± V
2.10 Wiring the Circuit under Measurement When Using Current Sensors
