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 LOUT H
OUT LOUT 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 LOUT H
OUT LOUT 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 LOUT H
R
S
T
N
OUT LOUT H
Element 3
Element 1
Element 2
OUT LOUT H
EXT EXT EXT
C
±
±
V
C
±
±
V
C
±
±
V
2.10 Wiring the Circuit under Measurement When Using Current Sensors
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