Characteristics of working:
1. If the connection of L1, L2 and L3 phases are right, the green light of the relay illuminates and the relay closes. If they are wrong, the yellow light of the relay illuminates. Exchanging any two of them, the relay will accept the phase sequence and begin to work normally.
In this case that there occurs yellow light illuminated and relay unclosed after the protected equipment works normally, it should be a wrong connection of external circuit. The relay has a function of protection against wrong connection.
2. While any of these L1, L2 and L3 phases is phase loss, the red light is lighted with the unlighted green light and the released relay. While the voltage come back to normal, it will recover immediately with lighted green light and closed relay.
3. L1, L2 and L3 connect with three phase AC. NO, COM are normally open contact point and NC, COM are normally closed contact point. Use to connect terminal directly.

Specification:
Model: TG30
Rated voltage: 220-380VAC
Rated current: 5A
Power consumption: ?2W
Insulation voltage: 40000VCC/m
Mounting method: 35mm TH type rail or M2-M4 screws
Package weight: Approx. 98g/3.4oz

Package list:
1 * Phase Sequence Relay