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Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries.
Other companies’ trademarks are hereby acknowledged to belong to their respective owners.
Installation Guide
Power Monitoring
E50B1, E50C2, E50C3
TM
RISK OF ELECTRIC SHOCK OR PERMANENT EQUIPMENT DAMAGE
CT negative terminals are referenced to the meter’s neutral and may be at elevated voltages
· Do not contact meter terminals while the unit is connected
· Do not connect or short other circuits to the CT terminals
Failure to follow these instructions may cause injury, death or equipment damage.
WARNING
Wiring
N L1
X2
X1
White
Black
A
B
C
N
X1
X2
X1
X2
X1
X2
A
B
C
Diagram 1: 1-Phase Line-to-Neutral 2- Wire
System 1 CT
Diagram 2: 1-Phase Line-to-Line 2-Wire
System 1 CT
L1 L2
X2
X1
X2
X1
A
B
C
N
A
B
C
N
White
Black
White
Black
X1
X2
X1
X2
X1
X2
L1 L2
X2
X1
A
B
C
N
A
B
C
White
Black
X1
X2
X1
X2
X1
X2
Diagram 3: 1-Phase Direct Voltage Connection 2 CT
L1 L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
White
Black
White
Black
White
Black
X1
X2
X1
X2
X1
X2
Diagram 4: 3-Phase 3-Wire 3 CT no PT
Use System Type 11 (2L)
Use System Type 12 (2L + 1n)
Use System Type 31 (3L)
Use System Type 10 (1L + 1n)
L1
N
L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
White
Black
White
Black
White
Black
X1
X2
X1
X2
X1
X2
Diagram 5: 3-Phase 4-Wire Wye Direct Voltage Input
Connection 3 CT
Use System Type 40 (3L + 1n)
White
Black
White
Black
White
Black
L1
N
L2 L3
X2
X1
A
B
C
N
A
B
C
X2
X1
X2
X1
X1
X2
X1
X2
X1
X2
Diagram 6: 3-Phase 4-Wire Wye Connection 3 CT
3 PT
Use System Type 40 (3L + 1n)
Shop for Power Metering products online at:
1.888.610.7664
www.
PowerMeterStore
.com