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2CCA880217R0001 ABB CMS-122FH 18 mm 20 A E90 Open-Core Current Sensor
ABB CMS-122FH is an 18 mm open-core current sensor with a 0.1–20 A measurement range, accuracy class 1 and InSite bus connectivity for retrofit monitoring of ABB E90 fuseholder circuits.
£46.92
Why Choose the ABB CMS-122FH 20 A Open-Core Current Sensor?
The ABB CMS-122FH is a compact 18 mm open-core current sensor designed for branch-circuit monitoring and energy-management applications. As part of the ABB CMS Circuit Monitoring System, it provides detailed current measurement for individual electrical circuits and connects to compatible ABB InSite monitoring equipment through the system's flat-cable bus.
The CMS-122FH is specifically designed for the retrofit of ABB E90 fuseholders up to 1000 V DC. Its open-core construction allows the sensor to be fitted around an existing conductor without requiring the conductor to be passed through a permanently closed sensing core, making it particularly useful when adding circuit monitoring to existing E90 installations.
With a measurement range of 0.1–20 A, accuracy class 1 and an InSite bus flat-cable interface, the CMS-122FH provides a practical solution for detailed monitoring of lower-current circuits. ABB order code 2CCA880217R0001 identifies this 20 A E90 retrofit open-core sensor.
Key Advantages
- Compact 20 A open-core current sensor for detailed branch-circuit monitoring.
- Designed specifically for retrofit installation with ABB E90 fuseholders.
- Wide 0.1–20 A measurement range for lower-current electrical loads.
- Open-core construction simplifies installation around existing conductors.
- Accuracy class 1 supports dependable current monitoring.
- Integrates with compatible ABB monitoring systems through the InSite bus flat-cable interface.
Key Features
- ABB CMS Circuit Monitoring System sensor.
- 20 A maximum measurement current.
- 0.1–20 A measurement range.
- 18 mm open-core sensor construction.
- Accuracy class 1.
- InSite bus flat-cable interface.
- Designed for retrofit of E90 fuseholders.
- Suitable for E90 fuseholder applications up to 1000 V DC.
- Surface mounting configuration.
- Compact format for circuit monitoring within electrical distribution equipment.
Practical Retrofit Monitoring for E90 Fuseholders
The ABB CMS-122FH enables individual circuits associated with E90 fuseholders to be incorporated into a wider energy-monitoring system. Branch-level current data can provide greater visibility of electrical loads, helping operators analyse consumption, supervise equipment and identify changes in circuit behaviour.
Its open-core construction is particularly valuable in retrofit projects because the sensor can be installed around an existing conductor. Combined with ABB's InSite flat-cable interface, this allows multiple monitored circuits to be connected efficiently to compatible system components while minimising additional wiring inside the distribution equipment.
Typical Applications
- ABB E90 fuseholder retrofit monitoring.
- ABB CMS and InSite energy-monitoring systems.
- Branch-circuit current monitoring.
- Electrical distribution boards and switchboards.
- Commercial building energy monitoring.
- Industrial electrical load monitoring.
- DC distribution and control installations using compatible E90 fuseholders.
- Energy-consumption and load analysis.
Technical Specifications
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| Device Type | Split-core CT | |
|---|---|---|
| Accuracy Class | Class 1 | |
| Mounting Type | Direct mounting | |
| Series | CMS Circuit Monitoring System | |
| ABB order code | 2CCA880217R0001 | |
| Product type | Open-core current sensor | |
| Maximum measurement current | 20 A | |
| Measurement range | 0.1–20 A | |
| Accuracy class | 1 | |
| Sensor size | 18 mm | |
| Communication interface | InSite bus (flat cable) | |
| Mounting type | Surface mounting | |
| Installation application | Retrofit of ABB E90 fuseholders | |
| E90 application voltage | Up to 1000 V DC | |
| Unit weight | approx. 0.012 kg | |
| Pack quantity | 1 |
Frequently Asked Questions
What is the ABB CMS-122FH used for?
The ABB CMS-122FH is an open-core current sensor for branch-circuit monitoring, specifically designed for retrofit installation with ABB E90 fuseholders.
What current range can the CMS-122FH measure?
The CMS-122FH has a measurement range of 0.1–20 A, making it suitable for monitoring lower-current branch circuits and electrical loads.
What is the accuracy class of the ABB CMS-122FH?
The CMS-122FH has an accuracy class of 1, providing dependable current measurement for circuit-monitoring and energy-management applications.
Why does the CMS-122FH use an open-core design?
The open-core construction supports retrofit installation around an existing conductor, reducing the need to disconnect and pass the conductor through a permanently closed sensor core.
Which devices is the ABB CMS-122FH designed for?
The CMS-122FH is specifically designed for the retrofit of ABB E90 fuseholders up to 1000 V DC and connects to compatible ABB monitoring equipment through the InSite flat-cable bus.
Trusted Circuit Monitoring from ABB
ABB CMS open-core sensors provide compact branch-level current measurement for retrofit energy-monitoring applications, enabling existing E90 fuseholder circuits to be integrated efficiently into compatible ABB monitoring systems.
