Why Choose the ABB CMS-202S8 40A Current Sensor?
The ABB CMS-202S8, order code 2CCA880138R0001, is a compact 40 A solid-core current sensor designed for circuit-level electrical monitoring within ABB energy monitoring systems. Part of the ABB CMS current sensor range, it uses a 25 mm format specifically designed for compatible ABB S800 installation devices with cage terminals.
The CMS-202S8 provides TRMS measurement of AC and DC current across a measuring range of 0.1–20 A. With accuracy class 0.5 and current accuracy of ≤±0.5% of full scale, it provides precise circuit-level data for energy monitoring, load analysis and electrical distribution management.
Its 25 mm closed solid-core construction provides a compact monitoring solution for S800 installations while helping reduce susceptibility to electromagnetic effects from neighbouring circuits. Measurement data can be transmitted through the ABB InSite bus flat-cable interface to compatible monitoring equipment, supporting scalable multi-circuit energy management systems.
Key Advantages
- Compact 40 A solid-core current sensor for circuit-level electrical monitoring.
- 0.1–20 A measuring range for detailed monitoring of lower-current loads.
- TRMS measurement of AC and DC current for comprehensive circuit monitoring.
- Accuracy class 0.5 for precise electrical measurement.
- Designed specifically for compatible ABB S800 installation devices with cage terminals.
- InSite bus flat-cable interface provides straightforward connection to compatible ABB monitoring systems.
- Compact solid-core construction supports high-density monitoring within electrical distribution systems.
Key Features
- ABB CMS current monitoring system.
- 40 A sensor rating.
- 0.1–20 A measurement range.
- TRMS AC and DC current measurement.
- Accuracy class 0.5.
- Current accuracy of ≤±0.5% of full scale.
- 25 mm solid-core / closed-core construction.
- Designed for ABB S800 devices with cage terminals.
- InSite bus communication via flat cable.
- Suitable for circuit-level energy and load monitoring.
- Operating temperature range of -25 to +70 °C.
- Compact design for integration into commercial and industrial distribution systems.
Integrated Current Monitoring for ABB S800 Systems
The ABB CMS-202S8 enables individual circuits within compatible S800 electrical distribution systems to be incorporated into a detailed monitoring architecture. TRMS measurement of AC and DC current provides useful circuit-level information for understanding electrical loads, analysing consumption patterns and improving visibility of distribution system performance.
Its 25 mm solid-core format is designed specifically for compatible ABB S800 devices with cage terminals. By transmitting measured values through the ABB InSite bus, multiple CMS sensors can be integrated into a scalable monitoring system for commercial, industrial and critical-power applications.
Typical Applications
- ABB S800 circuit monitoring.
- ABB energy monitoring systems.
- Commercial and industrial distribution boards.
- Branch circuit current monitoring.
- Electrical load and consumption analysis.
- Industrial power distribution systems.
- Data centre and critical power monitoring.
- Building energy management systems.
