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1SFA664005R1230 ABB RC120-30 120 mm Rogowski Coil Current Sensor 30 m
ABB RC120-30 1SFA664005R1230 is an open-loop Rogowski coil current sensor with a 120 mm coil diameter, 30 m cable and 0.361 V/kA measurement output for use with the CSU-2LV current sensing unit.
£402.01
Why Choose the ABB RC120-30 Current Sensor?
The ABB RC120-30, order code 1SFA664005R1230, is an open-loop Rogowski coil current sensor designed for use with the ABB CSU-2LV current sensing unit. Developed for low-voltage applications within ABB Arc Guard systems, it measures conductor current and provides the CSU-2LV with the current information required for current-conditioned arc-flash protection.
The RC120-30 uses Rogowski coil technology and provides a measurement output of 0.361 V/kA. Its open-loop construction and bayonet holder allow the sensor to be fitted around a suitable busbar or cable, while an RJ45 connector provides the connection to the CSU-2LV current sensing unit.
With a 120 mm coil diameter and an extended 30 m cable length, the RC120-30 is particularly suitable for larger low-voltage switchgear assemblies where the sensing point is located some distance from the CSU-2LV. The sensor has a 12.4 mm transducer diameter and operates across a temperature range of -30 to +80 °C.
Key Advantages
- Purpose-designed Rogowski coil current sensor for the ABB CSU-2LV.
- 120 mm coil diameter accommodates suitable low-voltage busbars and cables.
- Extended 30 m cable length provides excellent installation flexibility across larger switchgear assemblies.
- Provides a defined 0.361 V/kA measurement output for the CSU-2LV.
- RJ45 connection simplifies connection to the ABB current sensing unit.
- Open-loop construction with a bayonet holder facilitates installation around existing conductors.
Key Features
- ABB RC120 series low-voltage current sensor.
- Open-loop Rogowski coil technology.
- 120 mm coil diameter.
- 30 m connection cable.
- 0.361 V/kA measurement output.
- 12.4 mm transducer diameter.
- RJ45 connection to the CSU-2LV current sensing unit.
- Open-loop sensor assembled with a bayonet holder.
Current Measurement for Enhanced Arc-Flash Protection
ABB Arc Guard installations can combine optical arc detection with current measurement to improve protection selectivity. Used with the CSU-2LV, the RC120-30 measures current in a low-voltage conductor or busbar and supplies the corresponding measurement signal to the current sensing unit, allowing current information to be incorporated into the Arc Guard protection logic.
The open-loop Rogowski coil design enables convenient installation around an existing conductor, while the 120 mm coil diameter accommodates substantial cables and busbars. Its extended 30 m cable is particularly useful in large or multi-section switchgear assemblies where the current sensing point and CSU-2LV cannot be positioned close together.
Typical Applications
- ABB CSU-2LV current sensing installations.
- ABB Arc Guard arc-flash protection systems.
- Low-voltage switchgear and switchboards.
- Current measurement around electrical busbars and cables.
- Industrial power distribution systems.
- Large or multi-section switchgear requiring extended current sensor cable reach.
Technical Specifications
| Series | RC120 |
|---|---|
| Order code | 1SFA664005R1230 |
| Product group | Arc Guard Components |
| Product type | Low-voltage current sensor |
| Sensor technology | Rogowski coil |
| Sensor configuration | Open loop |
| Compatible unit | ABB CSU-2LV |
| Measurement output | 0.361 V/kA |
| Coil diameter | 120 mm |
| Transducer diameter | 12.4 mm |
| Cable length | 30 m |
| Connection | RJ45 connector |
| Cable function | Shielded cable |
| Holder | Bayonet holder |
| Operating temperature | -30 to +80 °C |
| Dimensions (H × W × D) | 55 × 150 × 150 mm |
| Product net weight | 1.03 kg |
| GTIN / EAN | 7320500541661 |
Frequently Asked Questions
What is the ABB RC120-30 used for?
The ABB RC120-30 is an open-loop Rogowski coil current sensor designed for use with the CSU-2LV current sensing unit to measure current in low-voltage electrical installations and ABB Arc Guard applications.
What is the coil diameter of the ABB RC120-30?
The RC120-30 has a 120 mm coil diameter, allowing the open-loop sensor to be installed around suitable low-voltage cables and busbars.
How long is the RC120-30 connection cable?
The ABB RC120-30 has a 30 m connection cable, providing extended reach between the current sensing point and the CSU-2LV within larger switchgear installations.
What measurement output does the RC120-30 provide?
The RC120-30 is specifically designed for the ABB CSU-2LV and provides a measurement output of 0.361 V/kA.
How does the ABB RC120-30 connect to the CSU-2LV?
The current sensor connects to the ABB CSU-2LV using an RJ45 connector, while the open-loop Rogowski coil uses a bayonet holder for convenient installation around the conductor.
Trusted Current Sensing from ABB
ABB RC series Rogowski coil sensors provide dedicated low-voltage current measurement for the CSU-2LV, with the RC120-30 combining a 120 mm open-loop coil and extended 30 m cable for flexible integration into larger Arc Guard and switchgear installations.
