Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1SFA664005R1205 ABB RC120-05 Current Sensor 120 mm 5 m
ABB RC120-05 (1SFA664005R1205) is an open-loop Rogowski coil current sensor with a 120 mm coil diameter, 5 m cable and 0.361 V/kA measurement output for use with the ABB CSU-2LV current sensing unit.
£287.14
Why Choose the ABB RC120-05 Current Sensor?
The ABB RC120-05, ABB order code 1SFA664005R1205, is an open-loop Rogowski coil current sensor designed for low-voltage current measurement within the ABB Arc Guard System. It is specifically designed for use with the ABB CSU-2LV current sensing unit, providing current measurement that can be used as part of a supervised arc-flash protection system.
The RC120-05 uses Rogowski coil technology to measure current around a busbar or cable without requiring a conventional iron-core current transformer. It features a 120 mm coil diameter, a 12.4 mm transducer diameter and a 5 m connection cable, making it suitable for installation around substantial low-voltage conductors and busbars.
Designed specifically for the CSU-2LV, the RC120-05 provides a measurement output of 0.361 V/kA and connects using an RJ45 connector. Its open-loop construction with bayonet holder simplifies installation around the conductor, while its wide operating temperature range supports dependable use in demanding industrial switchgear environments.
Key Advantages
- Purpose-designed Rogowski coil current sensor for the ABB CSU-2LV.
- 120 mm coil diameter accommodates substantial low-voltage busbars and cables.
- 5 m connection cable provides flexibility when positioning the sensor and CSU-2LV.
- Open-loop construction with bayonet holder simplifies installation around conductors.
- RJ45 connection provides straightforward connection to the CSU-2LV current sensing unit.
- Measurement output of 0.361 V/kA specifically matched to the CSU-2LV.
Key Features
- ABB Arc Guard current sensing component.
- RC120-05 open-loop current sensor.
- Uses Rogowski coil technology for current measurement.
- 120 mm coil diameter for busbar or cable installation.
- 12.4 mm transducer diameter.
- 5 m cable length.
- 0.361 V/kA measurement output.
- RJ45 connector for connection to the CSU-2LV.
- Open-loop design assembled with a bayonet holder.
- −30 to +80 °C operating temperature.
Current Measurement for Supervised Arc Protection
Current supervision can be combined with optical arc detection to provide additional information to an arc-flash protection system. The ABB RC120-05 measures current using Rogowski coil technology and provides its measurement signal to the compatible CSU-2LV current sensing unit for use within ABB Arc Guard protection architectures.
The open-loop RC120-05 can be fitted around a busbar or cable using its bayonet holder, avoiding the need to disconnect the primary conductor solely to pass it through a closed sensor core. Its 120 mm opening and 5 m connection cable provide flexibility for installation within low-voltage switchboards, motor control centres and industrial power distribution equipment.
Typical Applications
- ABB CSU-2LV current sensing systems.
- ABB Arc Guard arc-flash protection installations.
- Low-voltage switchgear and switchboards.
- Busbar current measurement.
- Motor control centres.
- Industrial electrical distribution panels.
- Current-supervised arc protection systems.
Technical Specifications
| Order code | 1SFA664005R1205 |
|---|---|
| Product group | Arc Guard Components |
| Product type | Open-loop current sensor |
| Sensor technology | Rogowski coil |
| Application | Low-voltage current measurement |
| Compatible current sensing unit | ABB CSU-2LV |
| Coil diameter | 120 mm |
| Transducer diameter | 12.4 mm |
| Cable length | 5 m |
| Measurement output | 0.361 V/kA |
| Connection | RJ45 connector |
| Sensor construction | Open loop with bayonet holder |
| Operating temperature | −30 to +80 °C |
| Storage temperature | −40 to +80 °C |
| Dimensions (H × W × D) | 40 × 150 × 150 mm |
| Weight | 0.18 kg |
| GTIN / EAN | 7320500540398 |
Frequently Asked Questions
What is the ABB RC120-05 used for?
The ABB RC120-05 is an open-loop Rogowski coil current sensor designed to measure current in low-voltage busbars or cables for the ABB CSU-2LV current sensing unit.
What is the coil diameter of the ABB RC120-05?
The RC120-05 has a 120 mm coil diameter, allowing it to be installed around compatible low-voltage busbars and cables.
How long is the cable on the RC120-05?
The ABB RC120-05 is supplied with a 5 m cable and connects to the compatible CSU-2LV using an RJ45 connector.
What measurement output does the RC120-05 provide?
The RC120-05 is specifically designed for the ABB CSU-2LV and provides a measurement output of 0.361 V/kA.
How is the ABB RC120-05 installed?
The sensor has an open-loop design with a bayonet holder, allowing the Rogowski coil to be positioned around the applicable busbar or cable and connected to the CSU-2LV using its RJ45 connection.
Reliable Current Sensing for ABB Arc Guard Systems
ABB RC series Rogowski coil sensors provide dedicated low-voltage current measurement for the CSU-2LV, supporting current-supervised Arc Guard protection in switchgear, motor control centres and industrial electrical distribution systems.
