Schneider Electric RM22 Harmony Control Relays
Schneider Electric RM22 Harmony Control Relays monitor current, voltage, phase, and three-phase supply conditions in industrial and building control systems. These 22.5mm-wide relays detect conditions such as overcurrent, undercurrent, overvoltage, undervoltage, phase loss, incorrect phase sequence, and phase asymmetry. The relay outputs communicate detected faults, enabling the control system to correct or shut down affected equipment. Schneider Electric RM22 Harmony Control Relays feature front-panel controls protected by an IP50 cover, along with LED status indication and an illuminated dial pointer for setup in low-light environments. Options include a diagnostic button for checking the downstream circuit, adjustable thresholds, time delays, and window monitoring. These relays are designed for mounting on 35mm DIN rails.
Features
- Current, voltage, phase, and three-phase supply monitoring
- Phase loss, phase sequence, and phase asymmetry monitoring, depending on model
- Additional options include adjustable thresholds, time delays, window monitoring, and diagnostic button for downstream circuit checks
- Overcurrent, undercurrent, overvoltage, and/or undervoltage detection
- LED indication for power, relay output, timing, and fault status
- Illuminated dial pointer for setup in low-light conditions
Applications
- Packaging
- Cranes and hoisting
- Power management
- Construction lifts, passenger lifts, and escalators
- Food and beverage
- Energy and chemicals
- Automotive
- Textiles
- Wastewater
Specifications
- 22.5mm enclosure width
- 24V to 240V AC/DC auxiliary supply
- Screw or spring terminal connection
- IP50 protection cover for front settings
- 35mm DIN-rail mounting
Videos
Functional Diagram
Additional Resources
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