Why Choose the ABB CT1M-10 600 Current Transformer?
The ABB CT1M-10 600 is a closed-core 600/5 A current transformer designed for indirect measurement of electrical parameters in low-voltage distribution systems. Supplied under ABB order code 2CSG280605R1000, it forms part of the ABB CT1M current transformer range and is designed in accordance with IEC 61869-2.
With a rated primary current of 600 A and a rated secondary current of 5 A, the CT1M-10 600 converts primary circuit current into a proportional standard secondary signal for compatible electricity meters, ammeters, power analysers and monitoring equipment. It provides class 0.5 accuracy with a 10 VA rated output, together with 15 VA outputs at classes 1 and 3.
The CT1M-10 600 uses a through-primary design with a large opening suitable for cables up to 86 mm and horizontal or vertical busbars up to 100 × 30 mm, 80 × 50 mm or 70 × 60 mm. Its 155 × 140 × 45 mm dimensions, IP20 degree of protection and 50–60 Hz rated frequency make it a practical choice for commercial and industrial metering installations.
Key Advantages
- Reliable 600/5 A current transformation for indirect electrical measurement.
- Class 0.5 accuracy supports precise metering applications.
- 10 VA rated output at accuracy class 0.5.
- 15 VA rated output at both class 1 and class 3.
- Standard 5 A secondary output for compatible measuring equipment.
- Large 86 mm maximum cable opening for substantial conductors.
- Suitable for horizontal and vertical busbars up to 100 × 30 mm, 80 × 50 mm or 70 × 60 mm.
- Busbar and mounting-foot fixings are supplied as standard.
- Compact 155 × 140 × 45 mm format for panel and switchboard installations.
- Designed in accordance with IEC 61869-2 for instrument current transformers.
Key Features
- ABB CT1M-10 closed-core current transformer.
- 600 A rated primary current.
- 5 A rated secondary current.
- 600/5 A transformation ratio.
- Class 0.5 measurement accuracy.
- 10 VA rated output at class 0.5.
- 15 VA rated output at class 1.
- 15 VA rated output at class 3.
- 50–60 Hz rated frequency.
- IP20 degree of protection.
- 86 mm maximum cable diameter.
- Through-primary construction for cable and busbar installations.
Current transformers enable electricity meters and monitoring instruments to measure circuits carrying currents above their direct-input range. The ABB CT1M-10 600 transforms a primary current of 600 A into a proportional 5 A secondary current, allowing compatible instrumentation to perform indirect measurement of electrical network parameters.
The CT1M-10 600 combines class 0.5 accuracy with a large through-primary opening capable of accepting substantial cables and busbars. This makes it particularly useful in switchboards and distribution systems where conductor dimensions require a larger CT aperture while maintaining a standard 5 A secondary interface for metering equipment.
Typical Applications
- Electrical energy metering systems.
- Main and sub-distribution switchboards.
- Low-voltage electrical distribution panels.
- Power and network monitoring systems.
- Building energy management installations.
- Industrial electrical measurement systems.
- Panel-mounted ammeters and power analysers.
- Large cable and busbar current measurement applications.
