Phase Failure Relay for detection of incorrect phase sequence,total and partial phase loss.The device detects regenerated voltage up to 85% of the nominal voltage(phase-phase).Phase Failure Relay can be used to protect any magnetically controlled three phase equipment that would be damaged if subjected to abnormal phase conditions such as single phasing. Many customers all over the world want to find quality and affordable Phase Failure Relay,today let's see the one week inquiries about it.