Why Choose the ABB CMS-102DR 20 A Current Sensor?
The ABB CMS-102DR is a compact 20 A TRMS solid-core current sensor designed for detailed circuit-level measurement within ABB circuit and energy monitoring systems. Its 18 mm format and universal DIN-rail mounting make it suitable for installation alongside modular electrical equipment where individual branch-circuit current monitoring is required.
The CMS-102DR provides a 0.1–20 A measuring range and supports measurement of AC, DC and mixed currents. With current accuracy of ≤±0.5% full scale and accuracy class 0.5, the sensor provides dependable measurement for energy analysis, load supervision and electrical-system monitoring.
Measurement information is transmitted through the ABB InSite bus using a flat cable to compatible monitoring equipment. Its compact DIN-rail design, low power consumption and 20 A measurement range make the CMS-102DR particularly suitable for monitoring lower-current final circuits within commercial, industrial and infrastructure distribution systems.
Key Advantages
- Compact 20 A TRMS current sensor for individual circuit monitoring.
- 0.1–20 A measuring range suits lower-current branch and final circuits.
- Supports measurement of AC, DC and mixed currents.
- ≤±0.5% full-scale current accuracy supports dependable electrical monitoring.
- 18 mm solid-core construction provides a compact closed-core measurement solution.
- Universal DIN-rail mounting simplifies installation within electrical distribution boards.
- InSite bus connectivity enables integration into ABB circuit and energy monitoring systems.
- Compact dimensions maximise available space inside densely populated electrical panels.
Key Features
- ABB CMS current measurement system.
- 20 A rated primary current.
- 18 mm solid-core sensor.
- 0.1–20 A measuring range.
- Universal DIN-rail mounting.
- Measures AC, DC and mixed current.
- TRMS current measurement.
- ≤±0.5% F.S. current accuracy.
- Accuracy class 0.5.
- InSite bus communication via flat cable.
- 10 mm opening diameter for the monitored conductor.
- Low 0.27 W power consumption.
- Designed for circuit-level energy, current and load monitoring.
Compact DIN-Rail Circuit Monitoring
The ABB CMS-102DR enables individual electrical circuits to be measured instead of limiting monitoring to the total incoming supply. Its 0.1–20 A range is well suited to lower-current circuits, allowing operators to obtain detailed information about individual loads and identify changes in electrical consumption at branch-circuit level.
The universal DIN-rail mounting arrangement allows the sensor to be positioned where measurement is required without depending on a specific protective-device format. Multiple CMS sensors can form part of a wider ABB monitoring architecture, providing granular current information for energy-efficiency analysis, load management and preventative maintenance.
Typical Applications
- Branch-circuit current monitoring.
- Low-current final-circuit monitoring.
- Commercial building energy-management systems.
- Industrial electrical distribution boards.
- ABB InSite energy-monitoring systems.
- Individual electrical load monitoring.
- Energy-consumption analysis at circuit level.
- Data centres and critical electrical infrastructure.
- Building automation and energy-efficiency projects.
- Distribution boards requiring universal DIN-rail-mounted current sensors.
