2CSG280495R1000 ABB CT1M-6 1500 Current Transformer 1500/5 A

Why Choose the ABB CT1M-6 1500 Current Transformer?

The ABB CT1M-6 1500 is a solid-core 1500/5 A current transformer designed for indirect measurement of electrical parameters in higher-current low-voltage distribution systems. Supplied under ABB order code 2CSG280495R1000, 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 1500 A and a rated secondary current of 5 A, the CT1M-6 1500 converts primary circuit current into a proportional standard secondary signal for compatible electricity meters, ammeters, power analysers and monitoring equipment. Its class 0.5 accuracy and 20 VA rated output at class 0.5 support accurate electrical measurement in demanding commercial and industrial installations.

The CT1M-6 1500 uses a through-primary design with a generous opening for large conductors. It accommodates cables up to 65 mm and horizontal or vertical busbars up to 80 × 10 mm, 60 × 30 mm or 50 × 50 mm. Its 126 × 104 × 45 mm enclosure, IP20 degree of protection and 50–60 Hz rated frequency make it suitable for switchboards, distribution panels and energy monitoring systems.

Key Advantages

• Reliable 1500/5 A current transformation for indirect electrical measurement.
• Class 0.5 accuracy supports precise metering applications.
• 20 VA rated output at accuracy class 0.5.
• Provides up to 30 VA at accuracy classes 1 and 3.
• Standard 5 A secondary output for compatible measuring equipment.
• Solid-core through-primary construction for dependable current measurement.
• Large primary opening accommodates cables up to 65 mm.
• Suitable for busbars up to 80 × 10 mm, 60 × 30 mm or 50 × 50 mm.
• Busbar and mounting-foot fixings are supplied as standard.
• Optional DIN-rail installation using the CT1M-4/5/6/7 DIN Rail Adapter.
• Designed in accordance with IEC 61869-2 for instrument current transformers.

Key Features

• ABB CT1M-6 solid-core current transformer.
• 1500 A rated primary current.
• 5 A rated secondary current.
• 1500/5 A transformation ratio.
• Class 0.5 measurement accuracy.
• 20 VA rated output at class 0.5.
• 30 VA rated output at class 1.
• 30 VA rated output at class 3.
• FS 5 current limiting factor.
• 50–60 Hz rated frequency.
• IP20 degree of protection.
• Through-primary construction for large cable and busbar installations.

Accurate High-Current Indirect Measurement

Current transformers enable meters and monitoring instruments to measure circuits carrying currents substantially above their direct-input range. The ABB CT1M-6 1500 transforms a primary current of 1500 A into a proportional 5 A secondary current, allowing compatible equipment to perform indirect measurement of electrical network parameters.

The CT1M-6 1500 combines class 0.5 accuracy with a high 20 VA class 0.5 output and a large through-primary opening for substantial cables and busbars. This makes it particularly suitable for high-current distribution boards, industrial switchgear and energy monitoring installations where a standard 5 A measuring signal is required.

Typical Applications

• High-current electrical energy metering systems.
• Main low-voltage distribution switchboards.
• Industrial power 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.