Why Choose the ABB CT1M-6 600 Current Transformer?
The ABB CT1M-6 600, order code 2CSG280455R1000, is a 600 A/5 A through-primary current transformer designed for indirect measurement of electrical parameters in metering, monitoring and energy management applications. Part of ABB's Metering Accessories range, it transforms higher primary currents into a standardised 5 A secondary current for compatible electricity meters, network analysers and measuring instruments.
As part of the ABB CT1M current transformer series, the CT1M-6 600 is designed according to IEC 61869-2. Its through-primary construction supports cable and busbar installations, providing a practical current sensing solution for electrical distribution panels, switchboards and energy monitoring systems.
With a 600 A rated primary current, 5 A rated secondary current and accuracy class 0.5, the CT1M-6 600 provides a 600:5 transformation ratio for accurate indirect electrical measurement. It provides 10 VA at class 0.5, 12.5 VA at class 1 and 12.5 VA at class 3, while its generous aperture accommodates cables up to 65 mm and horizontal or vertical busbars up to 80 × 10 mm, 60 × 30 mm or 50 × 50 mm.
Key Advantages
- Purpose-designed current transformer for indirect electrical measurement.
- 600 A/5 A current ratio for higher-current metering and monitoring applications.
- Accuracy class 0.5 supports precise current and energy measurement.
- 10 VA rated output at class 0.5 for demanding metering applications.
- Large through-primary aperture accommodates cables up to 65 mm.
- Suitable for horizontal and vertical busbars up to 80 × 10 mm, 60 × 30 mm or 50 × 50 mm.
- Busbar and mounting feet fixings are supplied as standard, with an optional DIN rail mounting adapter available.
Key Features
- ABB CT1M-6 current transformer series.
- 600 A rated primary current.
- 5 A rated secondary current.
- 600:5 current transformation ratio.
- Accuracy class 0.5.
- 10 VA rated output at class 0.5.
- 12.5 VA rated output at class 1.
- 12.5 VA rated output at class 3.
- FS 5 current limiting factor.
- 50–60 Hz rated frequency.
- IP20 protection rating.
- Through-primary construction for cable and horizontal or vertical busbar installations.
Reliable Indirect Measurement for Higher-Current Electrical Systems
Current transformers allow meters and measuring instruments to monitor electrical circuits carrying currents above their direct measurement range. The transformer produces a proportional secondary current, allowing electrical parameters to be measured without routing the full primary circuit current through the connected measuring instrument.
The ABB CT1M-6 600 converts a nominal 600 A primary current into a 5 A secondary current. Its class 0.5 accuracy, 10 VA class 0.5 output and large conductor aperture make it suitable for accurate indirect current measurement in commercial and industrial electrical distribution, power monitoring and energy management systems using substantial cables or busbars.
Typical Applications
- Electrical energy metering systems.
- Commercial and industrial distribution panels.
- Electrical switchboards and control cabinets.
- Indirect measurement of circuits with a 600 A nominal current.
- Energy monitoring and management systems.
- Current measurement with compatible network analysers, meters and instrumentation.
- Large cable and busbar current measurement.
- Panel-building and electrical distribution applications.
