Sampling Voltage ≤ 480Vac
(3P4W)
Wiring Guide CT Ratio Setup Guide
1. Initial interface after power
on
2. Press ‘SET’ for 3s to enter
the password input interface
3. Press ‘SET’ and ‘➡’ to enter
the password (default 701)
4. Press ‘SET’ for 3s to
enter the setting interface
5.Press ‘SET’ to enter CT set，
the default CT is 200
6.Press ‘SET’ and ‘➡’ to
change CT value
7. Press ‘ESC’ to save value
and quit CT set, press ‘ESC’
again to back to initial interface
Notes：
1. Sampling voltage ≤ 480Vac (3P4W ), please refer to the guide to wire and setup CT ratios.
2. Please ensure that the CT wiring is correct, and ensure that the voltage sampling and CT
wiring on different phase lines (regardless of phase sequence) meet the corresponding
relationship in the table below.
3. Make sure the direction of the arrow on CT points from grid to load.
4. Power sensor requires circuit breaker for protection, otherwise the voltage sampling wires
need to be connected with a fuse in each phase . Recommended fuse specification:
≥measuring voltage/1A
Voltage sampling and CT port wiring table
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