Option S:
10 ÷ 36VDC
Option L:
20 ÷ 75VDC
MV/LV
Transformer
L1
L2
L3
N
PE
Option U:
85 ÷ 510VAC
85 ÷ 350VDC
SMC 133
Power Analyzer
RUN CHG ALM
G B- A+
COM
X1 X2
PWR
STATUS
N
L1
L2
L3
S2 S1 S2 S1 S2 S1
I1
I2
I3
VOLTAGE INPUTS
ETH
U
U
USB
Option U:
85 ÷ 510VAC
85 ÷ 350VDC
L1
L2
L3
X/100mA
X/5A
S2
S1
S2
S1
S2
S1
X/100mA
X/5A
S2
S1
S2
S1
S2
S1
X/100mA
X/5A
S2
S1
S2
S1
S2
S1
Figure 4: An example of typical installation of SMC 133 instrument — options L or S for various LVDC power
supplies and option U for universal LVAC. Typical connection options for voltage measurements: star, delta and
single phase feeders. Option E (left) for Ethernet port remote communication, option U (right) for local USB
communication port (all instruments provide RS485 serial line).
Option S:
10 ÷ 26VAC
9 ÷ 36VDC
Option L:
20 ÷ 50VAC
20 ÷ 75VDC
SMC 133
Power Analyzer
RUN CHG ALM
G B- A+
COM
X1 X2
PWR
STATUS
N
L1
L2
L3
S2 S1 S2 S1 S2 S1
I1
I2
I3
VOLTAGE INPUTS
ETH
MV/LV
Transformer
L1
L2
L3
X/100mA
X/5A
L1
L2
L3
N
PE
S2
S1
S2
S1
S2
S1
MV/LV
Transformer
L1
L2
L3
X/100mA
X/5A
L1
L2
L3
N
PE
S2
S1
SMC 133
Power Analyzer
S2 S1 S2 S1 S2 S1
I1
I2
I3
N
L1
L2
L3
VOLTAGE INPUTS
DIGITAL I/O
COM
X1
X2
GC B- A+
D1 C2 D2
RUN
ALM
AUX PWR
C1
U
S2
S1
S2
S1
Figure 5: Example of typical connection of SMC 133 with indirect measurement via voltage transformers.
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