User Documentation

Wiring
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NOTICE
The input voltage to each terminal is as follows.
Terminal Phase and wire system Terminal No. Input voltage
Power supply Single-phase two-wire
1 - 2
(L+ - N–)
85 - 264 V AC
100 - 300 V DC
Measured
voltage input
Single-phase two-wire
3 - 6
(V1-Vn)
0 - 500 V AC (L-L)
Single-phase three-wire
3 - 5 - 6
(V1-V3-Vn)
0 - 500 V AC / 3W
0 - 250 V AC / 3W
(L-L)
(L-N)
Three-phase three-wire
3 - 5 - 6
(V1-V3-Vn)
0 - 500 V AC (L-L)
Three-phase four-wire
3 - 4 - 5 - 6
(V1-V2-V3-Vn)
0 - 500 V AC
0 - 289 V AC
(L-L)
(L-N)
6.2 Wiring diagrams
Please connect a breaker or a fuse to the power supply and voltage input part for safety reasons and to
protect the device.
• Recommended breaker: 3 to 15 A
• Recommended fuse: Time-lag fuse rated current 2 A
Grounding the secondary side of VT (voltage transformer) and CT (current transformer) is not necessary with
low-voltage circuit.
NOTICE
When using several CTs, set each CT approximately 1 m apart. If the two CTs are set too close
to each other, measurements may not be accurate due to magnetic field interference.