2CCA880130R0001 ABB CMS-102DR 20 A DIN-Rail Current Sensor

Why Choose the ABB CMS-102DR 20 A Current Sensor?

The ABB CMS-102DR is a compact 20 A TRMS solid-core current sensor designed for detailed circuit-level measurement within ABB circuit and energy monitoring systems. Its 18 mm format and universal DIN-rail mounting make it suitable for installation alongside modular electrical equipment where individual branch-circuit current monitoring is required.

The CMS-102DR provides a 0.1–20 A measuring range and supports measurement of AC, DC and mixed currents. With current accuracy of ≤±0.5% full scale and accuracy class 0.5, the sensor provides dependable measurement for energy analysis, load supervision and electrical-system monitoring.

Measurement information is transmitted through the ABB InSite bus using a flat cable to compatible monitoring equipment. Its compact DIN-rail design, low power consumption and 20 A measurement range make the CMS-102DR particularly suitable for monitoring lower-current final circuits within commercial, industrial and infrastructure distribution systems.

Key Advantages

• Compact 20 A TRMS current sensor for individual circuit monitoring.
• 0.1–20 A measuring range suits lower-current branch and final circuits.
• Supports measurement of AC, DC and mixed currents.
• ≤±0.5% full-scale current accuracy supports dependable electrical monitoring.
• 18 mm solid-core construction provides a compact closed-core measurement solution.
• Universal DIN-rail mounting simplifies installation within electrical distribution boards.
• InSite bus connectivity enables integration into ABB circuit and energy monitoring systems.
• Compact dimensions maximise available space inside densely populated electrical panels.

Key Features

• ABB CMS current measurement system.
• 20 A rated primary current.
• 18 mm solid-core sensor.
• 0.1–20 A measuring range.
• Universal DIN-rail mounting.
• Measures AC, DC and mixed current.
• TRMS current measurement.
• ≤±0.5% F.S. current accuracy.
• Accuracy class 0.5.
• InSite bus communication via flat cable.
• 10 mm opening diameter for the monitored conductor.
• Low 0.27 W power consumption.
• Designed for circuit-level energy, current and load monitoring.

Compact DIN-Rail Circuit Monitoring

The ABB CMS-102DR enables individual electrical circuits to be measured instead of limiting monitoring to the total incoming supply. Its 0.1–20 A range is well suited to lower-current circuits, allowing operators to obtain detailed information about individual loads and identify changes in electrical consumption at branch-circuit level.

The universal DIN-rail mounting arrangement allows the sensor to be positioned where measurement is required without depending on a specific protective-device format. Multiple CMS sensors can form part of a wider ABB monitoring architecture, providing granular current information for energy-efficiency analysis, load management and preventative maintenance.

Typical Applications

• Branch-circuit current monitoring.
• Low-current final-circuit 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.
• Distribution boards requiring universal DIN-rail-mounted current sensors.