Why Choose the ABB CT1M-10 2000 Current Transformer?
The ABB CT1M-10 2000 is a reliable 2000/5 A current transformer designed for indirect measurement of electrical current in low-voltage metering and energy-monitoring systems. As part of the ABB CT1M current transformer series, it transforms high primary currents into a standardised 5 A secondary current suitable for connection to compatible meters and electrical measuring instruments.
Designed in accordance with IEC 61869-2, the CT1M-10 2000 provides a best accuracy class of 0.5 and an FS 5 instrument security factor. Its through-primary construction accommodates cables and horizontal or vertical busbars, making it suitable for main distribution boards, switchboards and industrial energy-monitoring installations.
With a rated primary current of 2000 A, rated secondary current of 5 A and rated frequency of 50–60 Hz, the CT1M-10 2000 is designed for high-current electrical measurement. It provides a rated output of 45 VA at Class 0.5, Class 1 and Class 3, while the CT1M-10 frame accommodates cables up to 86 mm and busbars up to 100 × 30 mm, 80 × 50 mm or 70 × 60 mm.
Key Advantages
- Reliable 2000/5 A current transformation for indirect electrical measurement.
- Best accuracy class 0.5 for precise metering applications.
- 45 VA rated output at Class 0.5 for compatible measuring circuits.
- Designed in accordance with IEC 61869-2.
- FS 5 instrument security factor for metering applications.
- Through-primary design suitable for cable and busbar installations.
- Accommodates cables up to 86 mm through the primary opening.
Key Features
- ABB CT1M-10 current transformer series.
- 2000 A rated primary current.
- 5 A rated secondary current.
- 2000/5 A transformation ratio.
- Accuracy class 0.5 with 45 VA rated output.
- 45 VA rated output at Class 1.
- 45 VA rated output at Class 3.
- 50–60 Hz rated frequency.
- FS 5 instrument security factor.
- IP20 protection rating.
- Through-primary construction for indirect current measurement.
Reliable Current Measurement for Electrical Metering
Current transformers allow measuring equipment to monitor high electrical currents without routing the full primary current directly through the measuring instrument. The ABB CT1M-10 2000 converts a 2000 A primary current proportionally to a standard 5 A secondary signal, enabling compatible ammeters, multifunction meters and energy meters to perform indirect current measurement.
The CT1M range is designed for electrical distribution and energy-efficiency applications where accurate and dependable current measurement is required. The CT1M-10 through-primary format provides installation flexibility for cables and busbars, while its defined accuracy classes and VA ratings allow the transformer to be matched to the requirements of the connected metering circuit.
Typical Applications
- Electrical energy metering systems.
- Main and sub-distribution switchboards.
- Industrial electrical distribution panels.
- Indirect current measurement with ammeters.
- Multifunction electrical measuring instruments.
- Energy monitoring and management systems.
- High-current commercial and industrial power-distribution installations.
