Installation 9
Single-Phase Two-Wire with Neutral
This configuration is most often seen in homes and offices. The two conductors are neutral and
line. For these models, the meter is powered from the
N
and
Ø
A
terminals.
Up to three such circuits may be monitored with one meter by also using the
Ø
B
and
Ø
C
inputs.
Ground
W
H
IT
E
B
L
AC
K
Ø
B CT
Ø
C CT
Ø
A CT
Ø
B
Ø
C
N
Ø
A
Common
Input or Positive
Monitoring Equip-
ment or Display
P1
P2
P3
COM
O
u
tp
u
t
Status
Status
Status
W
ATT
N
ODE
®
P
ULSE
WNB
-
WNB
-
-
P
-
P
Line
Neutral
S
O
U
RC
E
LO
A
D
Shorting
Jumpers
Source
Face
Current
Transformer
3Y
-
xxx
Figure 2: Single-Phase Two-Wire Connection
Recommended WattNode Models
The following table shows the WattNode models that should be used, depending on the line to
neutral voltage.
Line to Neutral Voltage
WattNode Model
120 Vac
WNB-3Y-208-P
230 Vac
WNB-3Y-400-P
277 Vac
WNB-3Y-480-P
