CM-Exx & CM-Sxx Single-phase monitoring relays
CM-Exx and CM-Sxx are the single-phase current and voltage monitoring relays that provide reliable monitoring of voltages and currents by using the TRMS measuring principle.
ABB’s CM range offers a wide selection of powerful, compact devices for the monitoring of currents and voltages in single-phase AC/DC systems. All come in a housing that is just 22.5 mm wide. This product range includes current and voltage monitoring relays for over- and undercurrent protection, over- and undervoltage protection and phase loss monitoring – from 3 mA to 15 A and from 3 V to 600 V. ABB’s CM range gives your electric installation the highest safety and reliability.
- Safe and reliable voltage and current monitoring
- Easy Connect Technology push-in terminals
- Withstands highest vibrations
- Easy adjustments via front potentiometer
- Over-/undercurrent monitoring
- Over-/undervoltage monitoring
- AC/DC signal measurements
- True RMS measuring principle
- Window monitoring (upper and lower threshold at the same time)
- Easy Connect Technology with push-in terminals
- Double-chamber cage connection terminals