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SINGLE PHASE INSTALLATION ON THREE-PHASE
BALANCED LOADS
Install one CT (must be on phase A current connection) and
connect all three voltage leads to A,B, and C voltage
connections. Current inputs B and C should be jumpered
(see drawing below). If this option is selected, the calcula-
tions for kW demand are as follows:
AØ
BØ
LOAD
LINE
CØ
kW DEMAND = E x I x 1.73 x (mA out -4) x 3
1000 x 16
FORMULA DESIGNATIONS
E = Line to Line Voltage
I = Maximum rated full-scale of one CT in amps
mA out = 4 to 20 mA reading (supply DC source)
L-1
ØA
L-2
ØB
L-3
ØC
FUSES: 600 V 1/4 AMP, 100 KAIC
L-1
L-2
L-3
WHT
ØA
BLK
WHT
ØB
BLK
WHT
ØC
BLK
Required shorting links
SINGLE PHASE VOLTAGE WITH A NEUTRAL
(e.g., 120 V), the following installation instructions
apply
(see drawing below)
Install 1 CT on the "hot" lead per the installation instruc-
tions (i.e., arrows facing the load) and connect the leads
from the CT to phase A current input. Connect the voltage
input from the "hot" lead to phase A voltage input and the
voltage from the neutral to the phase B voltage input.
Current inputs B and C should be jumpered. If this method
is used, the calculation for kW demand is as follows:
Hot
N
LOAD
LINE
kW DEMAND = E x I x 1.73 x (mA out -4) x 2
240V, 3 WIRE, SINGLE PHASE
Hot
N
LOAD
LINE
Hot
kW DEMAND = E x I x 1.73 x (mA out -4)
1000 x 16
3
:
L-1
ØA
L-2
ØB
L-3
FUSES: 600 V 1/4 AMP, 100 KAIC
L-1
L-2
L-3
120V (example)
WHT
ØA
BLK
WHT
ØB
BLK
Voltage
WHT
ØC
BLK
Select Switch
Required shorting links
1000 x 16
L-3
L-1
ØA
L-2
ØB
FUSES: 600 V 1/4 AMP, 100 KAIC
L-1
L-2
L-3
240V (example)
WHT
ØA
BLK
WHT
ØB
BLK
Voltage
WHT
ØC
BLK
Select Switch
Required shorting links
ØC
ØC
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