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2.
Installation and wiring
2.7 Wiring diagrams (continued)
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For 1-phase 3-wire
As shown below, 1-phase 3-wire can measure a maximum of 2 circuits. Use CT1,CT2 when measuring only 1 circuit.
The CT must be attached to the R-phase and the T-phase.
■
For 3-phase 3-wire
As shown below, 3-phase 3-wire can measure a maximum of 2 circuits. Use CT1,CT2 when measuring only 1 circuit.
The CT must be attached to the R-phase and the T-phase.
R N T
Power side
Load
Circuit A (CT1 to 2)
Breaker
Load
Circuit C (CT 3 to 4)
Breaker
Branch
circuit
breaker
R S T
Load
Circuit A (CT1 to 2)
Load
Circuit C (CT 3 to 4)
Power side
Breaker
Breaker
Branch
circuit
breaker