RM17 Harmony Control Relays

Schneider Electric RM17 Harmony Control Relays are designed to monitor current, single-phase voltage, and three-phase power supplies to identify abnormal electrical conditions. These compact relays detect conditions such as overcurrent, overvoltage, undervoltage, phase loss, incorrect phase sequence, and phase asymmetry. The relay outputs provide fault information, enabling the control system to correct or shut down affected equipment. The 17.5mm-wide enclosures save DIN-rail space while providing dedicated or multifunction monitoring. Relay options include integrated current measurement, true RMS measurement, adjustable voltage or asymmetry thresholds, and adjustable fault delays. Schneider Electric RM17 Harmony Control Relays feature front-mounted controls and LED indicators to simplify setup and status checks, while the IP50 protection cover prevents unintended adjustments to settings.