Why Choose the ABB CMS-201S8 80A Current Sensor?
The ABB CMS-201S8, order code 2CCA880137R0001, is a compact 80 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 mounting on compatible ABB S800 high-performance circuit breakers, providing detailed current measurement directly within electrical distribution systems.
The CMS-201S8 provides TRMS measurement of AC and DC currents across a measuring range of 0.1–40 A. With an accuracy of 0.5% of full scale, the sensor provides dependable circuit-level measurement for load analysis, energy monitoring and electrical distribution management.
Designed as a 25 mm solid-core sensor, the CMS-201S8 is intended for compatible S800 and S800P high-performance circuit breakers and can be fitted by replacing the terminal cover. Measured values are transmitted through the 4-pole InSite bus flat cable to an ABB InSite control unit, enabling multiple sensors to form part of a scalable circuit and energy monitoring system.
Key Advantages
- Compact 80 A solid-core current sensor for circuit-level electrical monitoring.
- 0.1–40 A measuring range for detailed monitoring of connected circuits.
- TRMS measurement of AC and DC currents for comprehensive electrical monitoring.
- High measurement accuracy of 0.5% of full scale.
- Designed specifically for compatible ABB S800 and S800P high-performance circuit breakers.
- InSite bus flat-cable interface simplifies connection to compatible ABB control units.
- Closed solid-core construction provides good immunity to electromagnetic influences from neighbouring circuits.
Key Features
- ABB CMS current monitoring system.
- 80 A current sensor.
- 0.1–40 A measuring range.
- TRMS AC and DC current measurement.
- 0.5% full-scale accuracy.
- 25 mm solid-core / closed-core sensor.
- Designed for mounting on compatible ABB S800 high-performance circuit breakers.
- Suitable for compatible S800 and S800P devices.
- InSite bus communication via 4-pole flat cable.
- Supports instantaneous, minimum, maximum and hold current values within the InSite monitoring system.
- 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
The ABB CMS-201S8 enables individual electrical circuits to become part of a centralised energy monitoring architecture without requiring conventional bulky current transformers. The sensor measures TRMS AC and DC current and transmits instantaneous, minimum, maximum and hold values through the ABB InSite bus, providing detailed circuit information for energy management and load analysis.
Its 25 mm solid-core construction is designed specifically for compatible ABB S800 high-performance circuit breakers. Multiple CMS sensors can be connected to an InSite control unit through the 4-pole flat-cable bus, creating a compact and scalable monitoring solution for commercial, industrial and critical-power distribution systems.
Typical Applications
- ABB S800 and S800P circuit monitoring.
- ABB InSite 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.
