KW1M-H Eco-POWER METER
6
3.2 Wiring Diagrams
Please connect a breaker (3 to 15A) to the voltage input part for safety reasons and to protect the
device. Grounding the secondary side of VT (Voltage transformer) and CT (Current transformer) is not
necessary with low-voltage circuit.
◆
When measuring a load with rated input voltage (100-200V system/ 400V system)
Single-phase two-wire system
*One current transformer (CT) is required.
Do not wire
⑥
⑦
terminals. They are connected internal.
Single-phase three-wire / Three-phase three-wire system
*Two current transformers are required.
Do not wire
⑦
terminal. It is connected internal.
Three-phase four-wire system
*Three current transformers are required.