Why Choose the ABB CMS-102CA 20A Current Sensor?
The ABB CMS-102CA, order code 2CCA880109R0001, is a compact 20 A solid-core current sensor designed for circuit-level current and energy monitoring within ABB InSite Energy Management Systems. As part of the ABB CMS current sensor range, it provides accurate TRMS measurement of AC and DC currents while occupying minimal space inside electrical distribution boards.
The CMS-102CA provides a measurement range of 0.1–20 A with an accuracy class of 0.5. Its closed solid-core design provides dependable measurement and good immunity to electromagnetic influences from neighbouring circuits, making it well suited to densely populated commercial and industrial distribution systems.
Designed as an 18 mm universal cable-mounted sensor, the CMS-102CA can be secured using cable ties, allowing installation independently of the manufacturer or type of protective and switching device used on the final circuit. Measured values are transmitted to a compatible ABB InSite control unit through the 4-pole InSite bus flat cable, enabling scalable monitoring with SCU100 and SCU200 systems.
Key Advantages
- Compact 20 A solid-core current sensor for detailed circuit monitoring.
- Accurate 0.1–20 A measurement range for low-current branch circuits and loads.
- TRMS measurement of AC and DC current for dependable electrical monitoring.
- Accuracy class 0.5 for precise circuit-level measurements.
- Universal cable mounting using cable ties provides flexible installation.
- InSite bus flat-cable interface simplifies connection to compatible ABB control units.
- Closed solid-core construction provides good immunity to electromagnetic influences from adjacent circuits.
Key Features
- ABB CMS current monitoring system.
- 20 A current sensor.
- 0.1–20 A measuring range.
- Solid-core / closed-core construction.
- TRMS AC and DC current measurement.
- Accuracy class 0.5.
- 18 mm sensor format.
- Universal cable tie mounting.
- InSite bus communication via 4-pole flat cable.
- Compatible with ABB InSite SCU100 and SCU200 control units.
- Supports instantaneous, minimum, maximum and hold current values within the InSite monitoring system.
- Compact design for high-density electrical distribution boards.
Flexible Circuit-Level Current Monitoring
Current sensors such as the ABB CMS-102CA enable individual electrical circuits and loads to be monitored within a centralised energy management system. The sensor measures TRMS AC and DC current and communicates the resulting values through the ABB InSite bus, providing the data required for load analysis, energy monitoring and improved visibility of electrical distribution systems.
The CMS-102CA is particularly useful for retrofit and universal monitoring applications because its cable-mounted design is independent of the protective or switching device installed on the circuit. Multiple CMS sensors can be incorporated into an ABB InSite installation, allowing detailed circuit-level information to be collected by compatible SCU100 or SCU200 control units.
Typical Applications
- Branch circuit current monitoring.
- ABB InSite energy monitoring systems.
- Commercial and industrial distribution boards.
- Retrofit electrical monitoring installations.
- Energy consumption and load analysis.
- Data centre and critical power monitoring.
- Building energy management systems.
- Individual equipment and final circuit monitoring.
