2CCA880108R0001 ABB CMS-101CA 18 mm 40 A Cable-Mounted Current Sensor

Why Choose the ABB CMS-101CA 40 A Current Sensor?

The ABB CMS-101CA is a compact and accurate solid-core current sensor designed for branch-circuit monitoring and energy-management applications. As part of the ABB CMS Circuit Monitoring System, this 18 mm sensor provides precise current measurement for applications requiring detailed visibility of individual electrical loads.

Designed for universal cable mounting, the CMS-101CA features an 18 mm solid-core format and a 40 A maximum measurement current. The cable-mounted design allows the sensor to be secured using cable ties, making it suitable for integration into a wide variety of distribution boards and electrical installations without dependence on a particular protective-device platform.

With a measurement range of 0.1–40 A, current accuracy of ≤±0.5% full scale and connection through the ABB InSite bus flat-cable system, the CMS-101CA provides a compact solution for high-density circuit monitoring. ABB order code 2CCA880108R0001 identifies this 40 A cable-mounted solid-core sensor.

Key Advantages

• Compact 40 A solid-core current sensor for branch-circuit monitoring.
• High ≤±0.5% full-scale current accuracy for dependable measurement.
• Wide 0.1–40 A measurement range for monitoring individual electrical loads.
• Universal cable mounting supports flexible installation using cable ties.
• Suitable for monitoring AC or DC currents within compatible ABB CMS systems.
• Integrates with ABB InSite energy-management systems using the flat-cable bus.

Key Features

• ABB CMS Circuit Monitoring System sensor.
• 40 A maximum measurement current.
• 0.1–40 A measurement range.
• 18 mm solid-core sensor construction.
• Current accuracy of ≤±0.5% full scale.
• Supports measurement of AC and DC currents.
• InSite bus flat-cable interface for connection to compatible monitoring equipment.
• Universal cable mounting using cable ties.
• Compact design for high-density electrical distribution equipment.
• Operating ambient temperature range of -25 to +70 °C.

Accurate Circuit Monitoring for Energy Management

Current sensors such as the ABB CMS-101CA provide detailed visibility of individual electrical circuits, allowing energy-management systems to monitor loads at branch level rather than relying solely on measurements from the main incoming supply. This detailed information can help operators understand consumption patterns, identify unusual loads and improve energy transparency throughout an electrical installation.

The CMS-101CA combines a compact solid-core construction with cable-tie mounting and ABB's flat-cable communication architecture. This makes it particularly useful for distribution boards and other installations where numerous circuits must be monitored while minimising the space and wiring required for the monitoring system.

Typical Applications

• ABB InSite energy-management systems.
• Branch-circuit current monitoring.
• Electrical distribution boards and switchboards.
• Commercial building energy monitoring.
• Industrial building electrical monitoring.
• Data centre power and branch-circuit monitoring.
• AC and DC load monitoring.
• Energy-consumption and load analysis.