Wiring Diagrams - Panasonic KW1M-H User Manual

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.
Single-phase three-wire / Three-phase three-wire system
*Two current transformers are required.
Three-phase four-wire system
*Three current transformers are required.
Do not wire ⑥ ⑦ terminals. They are connected internal.
Do not wire ⑦ terminal. It is connected internal.
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KW1M-H Eco-POWER METER