Why Choose the ABB CMS-101DR 40 A Current Sensor?
The ABB CMS-101DR is a compact 40 A TRMS solid-core current sensor designed for detailed circuit-level measurement within ABB InSite energy-monitoring systems. Its 18 mm solid-core format and universal DIN-rail mounting arrangement allow the sensor to be installed independently of the manufacturer of the protective or switching device used in the final circuit.
The CMS-101DR provides a 0.1–40 A measuring range and measures both AC and DC currents using TRMS measurement. With current accuracy of <±0.5% full scale, the closed-core sensor provides dependable measurement while offering reduced susceptibility to electromagnetic influences from neighbouring circuits.
Measurement information is transmitted through the ABB InSite bus using a 4-pole flat cable to compatible SCU100 and SCU200 control units. Its DIN-rail mounting, compact dimensions and universal application make the CMS-101DR a practical choice for detailed energy monitoring, load supervision and electrical-system analysis in distribution boards.
Key Advantages
- Compact 40 A TRMS current sensor for individual circuit monitoring.
- 0.1–40 A measuring range supports detailed branch-circuit measurement.
- Measures TRMS AC and DC currents.
- <±0.5% full-scale current accuracy supports dependable monitoring.
- 18 mm solid-core construction provides a compact closed-core measurement solution.
- Universal DIN-rail mounting allows use independently of the protective or switching device manufacturer.
- Compatible with ABB SCU100 and SCU200 InSite control units.
- InSite bus connectivity simplifies integration of multiple sensors into a circuit-monitoring system.
Key Features
- ABB CMS current measurement system.
- 40 A rated primary current.
- 18 mm solid-core sensor.
- 0.1–40 A measuring range.
- Universal DIN-rail mounting.
- Measures AC and DC current.
- TRMS current measurement.
- <±0.5% F.S. current accuracy.
- Accuracy class 0.5.
- InSite bus communication via flat cable.
- Compatible with ABB SCU100 and SCU200 control units.
- Supports instantaneous, minimum, maximum and hold current values within the monitoring system.
Flexible DIN-Rail Circuit Monitoring
The ABB CMS-101DR enables individual electrical circuits to be monitored rather than limiting measurement to the overall incoming supply. Its 0.1–40 A measuring range, TRMS measurement and ability to measure both AC and DC currents make it suitable for detailed load monitoring across commercial, industrial and infrastructure electrical distribution systems.
Universal DIN-rail mounting means the sensor can be installed independently of the manufacturer of the associated protective or switching device. Multiple CMS sensors can communicate through the InSite bus with a compatible ABB control unit, providing detailed circuit-level information for energy-efficiency analysis, load supervision and electrical-system management.
Typical Applications
- Branch-circuit current 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.
- AC and DC circuit monitoring.
- Distribution boards requiring universal DIN-rail-mounted current sensors.
