The wiring of IC card ammeter is the same as that of the original mechanical ammeter, that is, the 1 hole from the left is connected to the public live wire input line, the second hole is connected to the load live wire output line, the third hole is connected to the public zero wire input line, and the fourth hole is connected to the load zero wire output line;

When wiring, the wire ends should be stripped to a moderate length, and the copper wire should be inserted into the bottom of the hole and not exposed. Double wiring screws should be completely tightened. After all connections are completed, check whether the wiring is correct.