Phase-sequence relay is a new high-tech product, which is suitable for large-scale digital integrated circuit and non-transformer design.Highly versatile (3 phase 220V~380V), super small size, beautiful appearance.
It detects the waveform and phase of the supply through IC to judge whether the supply is abnormal.In the motor running perceptual load reverse phase (inverse), three-phase voltage imbalance, lack of phase and short circuit, can quickly judge and output relay protection.
the protection function is not affected circuit or load current, the surge current, imbalance current and load characteristic, achieve full performance and climate long running, all of them, and make sure the motor is normal and stable operation.
Can be used for all kinds of three-phase motor and other three-phase equipment to provide relay protection, such as refrigeration compressor, pump, fan, air compressor, elevator, injection molding machine and so on.
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 Na phase, 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 lead to connect terminal directly.
size:8*3*7.5cm
Material:Plastic + metal
colour:gray
Package Contents:
1 * Relay Electronic Protection
Only the above package content, other products are not included.
Note: different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.