Why Choose the ABB CMS-102S8 20A Current Sensor?
The ABB CMS-102S8, order code 2CCA880126R0001, is a compact 20 A solid-core current sensor designed for circuit-level electrical monitoring within ABB InSite Energy Management Systems. As part of the ABB CMS current sensor range, it is specifically designed for integration with ABB S800 and S800P high-performance circuit breakers, providing accurate current measurement without requiring a conventional external current transformer.
The CMS-102S8 provides TRMS measurement of AC and DC currents across a measuring range of 0.1–20 A. With an accuracy of 0.5% of full scale, the sensor provides dependable circuit-level measurements for energy monitoring, load analysis and electrical distribution management.
Designed as an 18 mm solid-core sensor for S800 devices with cage terminals, the CMS-102S8 integrates neatly with compatible ABB high-performance circuit breakers. It communicates with compatible ABB InSite SCU100 and SCU200 control units through the InSite bus flat-cable interface, allowing multiple sensors to form part of a scalable energy monitoring system.
Key Advantages
- Compact 20 A solid-core current sensor for circuit-level monitoring.
- 0.1–20 A measurement range suitable for lower-current electrical circuits and loads.
- TRMS measurement of AC and DC current for comprehensive electrical monitoring.
- 0.5% full-scale accuracy for dependable circuit-level measurement.
- Designed specifically for compatible ABB S800 and S800P high-performance circuit breakers.
- InSite bus flat-cable interface simplifies connection to compatible ABB control units.
- Compact 18 mm construction is ideal for high-density electrical distribution systems.
Key Features
- ABB CMS current monitoring system.
- 20 A rated primary current.
- 0.1–20 A measuring range.
- TRMS AC and DC current measurement.
- 0.5% full-scale accuracy.
- 18 mm solid-core / closed-core sensor.
- Designed for S800 devices with cage terminals.
- Compatible with ABB S800 and S800P high-performance circuit breakers.
- InSite bus communication via flat cable.
- Compatible with ABB InSite SCU100 and SCU200 control units.
- 690 V AC / 1500 V DC rated operational voltage.
- Low power consumption of approximately 0.27 W at rated load.
Integrated Current Monitoring for ABB S800 Systems
Current sensors such as the ABB CMS-102S8 enable individual electrical circuits to be monitored directly within a centralised energy management system. By measuring TRMS AC and DC current at circuit level, the sensor provides useful information for analysing electrical loads, identifying consumption patterns and improving visibility across commercial and industrial distribution systems.
The CMS-102S8 is optimised for compatible ABB S800 and S800P high-performance circuit breakers, enabling compact sensor integration within the distribution system. Multiple CMS sensors can communicate through the InSite bus with an ABB SCU100 or SCU200 control unit, creating a scalable architecture for detailed circuit monitoring and energy management.
Typical Applications
- ABB S800 and S800P circuit monitoring.
- ABB InSite energy monitoring systems.
- Commercial and industrial distribution boards.
- Branch circuit current monitoring.
- Energy consumption and load analysis.
- Industrial electrical distribution systems.
- Data centre and critical power monitoring.
- Building energy management systems.
