2CSG280645R1000 ABB CT1M-10 1500 Current Transformer 1500 A/5 A

Why Choose the ABB CT1M-10 1500 Current Transformer?

The ABB CT1M-10 1500, order code 2CSG280645R1000, is a 1500 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 a high primary current 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-10 1500 is designed according to IEC 61869-2. Its large through-primary aperture supports both cable and busbar installations, making it suitable for commercial and industrial distribution boards, main switchboards and other higher-current electrical systems.

With a 1500 A rated primary current, 5 A rated secondary current and accuracy class 0.5, the CT1M-10 1500 provides a 1500:5 transformation ratio for accurate indirect electrical measurement. It delivers 20 VA at class 0.5, 30 VA at class 1 and 40 VA at class 3, while accommodating cables up to 86 mm and busbars up to 100 × 30 mm, 80 × 50 mm or 70 × 60 mm.

Key Advantages

• Purpose-designed for indirect electrical current measurement.
• 1500 A/5 A current ratio for compatible metering and monitoring equipment.
• Accuracy class 0.5 supports precise current and energy measurement.
• 20 VA rated output at class 0.5 for demanding metering applications.
• Large through-primary aperture accommodates cables up to 86 mm.
• Suitable for busbars up to 100 × 30 mm, 80 × 50 mm or 70 × 60 mm.
• FS 5 current limiting factor for metering applications.

Key Features

• ABB CT1M-10 current transformer series.
• 1500 A rated primary current.
• 5 A rated secondary current.
• 1500:5 current transformation ratio.
• Accuracy class 0.5.
• 20 VA rated output at class 0.5.
• 30 VA rated output at class 1.
• 40 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 busbar installations.

Reliable Indirect Measurement for High-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-10 1500 converts a nominal 1500 A primary current into a 5 A secondary current. Its class 0.5 accuracy, 20 VA class 0.5 output and large conductor aperture make it suitable for accurate indirect current measurement in industrial distribution boards, switchboards, power distribution systems and energy management installations using substantial cables or busbars.

Typical Applications

• Electrical energy metering systems.
• Commercial and industrial power distribution installations.
• Main distribution switchboards and electrical panels.
• Indirect measurement of circuits with a 1500 A nominal current.
• Energy monitoring and management systems.
• Current measurement with compatible network analysers, meters and instrumentation.
• Large cable and busbar current measurement.
• Industrial panel-building and electrical instrumentation applications.