Schneider Electric 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.
Features
- 17.5mm-wide modular enclosure
- Current, single-phase voltage, and three-phase supply monitoring
- Overcurrent, overvoltage, and/or undervoltage detection
- Options include true RMS measurement, self-powered operation, adjustable monitoring thresholds, and adjustable fault delays
- Phase sequence and phase failure monitoring (RM17T)
- Phase asymmetry monitoring (RM17TA00 and RM17TE00)
- Combined overvoltage and undervoltage window monitoring (RM17TE00 and RM17UBE)
- Integrated current transformer (RM17JC00MW)
- LED indication for power and relay output status
- IP50 protection cover for front settings
- 35mm DIN-rail mounting
Applications
- Packaging
- Cranes and hoisting
- Power management
- Construction lifts, passenger lifts, and escalators
- Food and beverage
- Energy and chemicals
- Automotive
- Textiles
- Wastewater
Functional Diagram
Additional Resources
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