On 3-phase supplies, C-Lynx control relays check phase sequence and phase failure, preventing
changes in direction of rotation. They therefore avoid overheating faults connected with phase imbalance.
Control relays used in this application: Phase control relays
MWS, MWG, MWU, MWA, HWUA, H3US, H3USN, H3US
Applications
Introduction 
Supervision of Motors
