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2CCA880134R0001 ABB CMS-202DR 40 A DIN-Rail Current Sensor
ABB CMS-202DR is a 25 mm solid-core 40 A TRMS current sensor with ≤±0.5% full-scale accuracy, AC and DC measurement, universal DIN-rail mounting and InSite bus connectivity for detailed circuit-level current and energy monitoring.
£61.53
Why Choose the ABB CMS-202DR 40 A Current Sensor?
The ABB CMS-202DR is a compact 40 A TRMS solid-core current sensor designed for detailed circuit-level measurement within ABB circuit and energy monitoring systems. Its 25 mm solid-core format and universal DIN-rail mounting make it suitable for installation independently of the manufacturer of the protective or switching device used in the final circuit.
The CMS-202DR measures TRMS AC and DC currents, providing accurate monitoring of individual electrical loads and branch circuits. With current accuracy of ≤±0.5% full scale and accuracy class 0.5, the closed-core sensor provides dependable measurement while helping reduce the influence of electromagnetic effects from neighbouring circuits.
Measurement information is transmitted through the ABB InSite bus using a 4-pole flat cable to compatible monitoring equipment, including SCU100 and SCU200 control units. Its universal DIN-rail mounting, compact construction and 40 A rated primary current make the CMS-202DR a practical solution for detailed energy monitoring, load supervision and electrical-system analysis.
Key Advantages
- Compact 40 A TRMS current sensor for individual circuit monitoring.
- Measures TRMS AC and DC currents.
- ≤±0.5% full-scale current accuracy supports dependable electrical monitoring.
- 25 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.
- 15 mm bore diameter accommodates the monitored conductor.
- Compatible with ABB SCU100 and SCU200 InSite control units.
- InSite bus connectivity simplifies integration of multiple current sensors into an energy-monitoring system.
Key Features
- ABB CMS current measurement system.
- 40 A rated primary current.
- 25 mm solid-core sensor.
- 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.
- 15 mm conductor opening.
- Low 0.27 W power consumption at rated load.
- Designed for circuit-level energy, current and load monitoring.
Flexible DIN-Rail Circuit Monitoring
The ABB CMS-202DR enables individual electrical circuits to be monitored rather than limiting measurement to the total incoming supply. Its 40 A primary current rating, 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.
Technical Specifications
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| Mounting Type | DIN rail | |
|---|---|---|
| Rated Primary Current (A) | 40 A | |
| Aperture (mm) | 15 mm | |
| Accuracy Class | Class 0.5 | |
| Device Type | Current sensor (Hall) | |
| Series | CMS | |
| ABB order code | 2CCA880134R0001 | |
| EAN / GTIN | 7612271426699 | |
| Product type | Current sensor | |
| Sensor construction | Solid core | |
| Sensor format | 25 mm | |
| Rated primary current | 40 A | |
| Measurement method | TRMS | |
| Measured current | AC and DC | |
| Current accuracy | ≤±0.5% F.S. | |
| Accuracy class | 0.5 | |
| Number of primary inputs | 1 | |
| Rated operational voltage | 690 V AC / 1500 V DC | |
| Rated frequency | 50 Hz | |
| Power consumption at rated load | 0.27 W | |
| Communication interface | InSite bus via flat cable | |
| Compatible control units | SCU100 and SCU200 | |
| Mounting type | DIN rail | |
| Bore diameter | 15 mm | |
| Width | 25.4 mm | |
| Height | 43.2 mm | |
| Net weight | approx. 30 g | |
| Operating temperature | -25 to +70 °C | |
| Country of origin | Switzerland |
Frequently Asked Questions
What is the ABB CMS-202DR used for?
The ABB CMS-202DR is used for individual circuit and load current monitoring within compatible ABB circuit and energy monitoring systems, providing detailed measurement of AC and DC electrical currents.
What is the current rating of the CMS-202DR?
The CMS-202DR is a 25 mm solid-core sensor with a 40 A rated primary current, designed for circuit-level current and energy monitoring.
Can the ABB CMS-202DR measure both AC and DC current?
Yes. The CMS-202DR supports TRMS measurement of both AC and DC currents, making it suitable for a range of circuit-monitoring applications.
How accurate is the ABB CMS-202DR?
The CMS-202DR provides current measurement accuracy of ≤±0.5% of full scale and has an accuracy class of 0.5.
How is the CMS-202DR installed and connected?
The CMS-202DR is a 25 mm solid-core DIN-rail-mounted sensor. Measurement information is transmitted through the ABB InSite bus using a flat cable to compatible monitoring equipment such as the SCU100 or SCU200.
Reliable ABB Circuit and Energy Monitoring
ABB CMS current sensors provide compact and accurate circuit-level measurement for modern energy-monitoring systems, enabling detailed visibility of individual electrical loads with flexible integration into DIN-rail distribution assemblies.
