Why Choose the Lovato DM39T4000 Current Transformer?
The Lovato DM39T4000 is a 4000/5 A current transformer designed for indirect AC current measurement in high-current low-voltage electrical installations. It converts a primary current of 4000 A to a standard 5 A secondary current, allowing compatible meters, power analysers and measuring equipment to monitor substantial electrical loads.
Part of the Lovato DM current transformer range, the DM39T4000 features a large 102 × 55.5 mm rectangular aperture for installation around substantial busbars. This makes it particularly suitable for main switchboards, industrial distribution assemblies and other high-current power systems.
The transformer provides electrical separation between the primary power circuit and the connected measuring circuit while scaling the current to a standard instrumentation level. This enables practical integration with compatible Lovato and third-party measuring instruments designed for a 5 A CT secondary input.
Key Advantages
- High 4000 A primary current rating for major power-distribution circuits.
- Standard 5 A secondary output for compatible measuring instruments.
- 4000/5 A transformation ratio for indirect high-current measurement.
- Large 102 × 55.5 mm rectangular aperture accommodates substantial busbars.
- Provides galvanic separation between the primary conductor and measuring circuit.
- Ideal for switchboards, power analysers and electrical monitoring systems.
Key Features
- Lovato DM current transformer range.
- 4000/5 A current transformation ratio.
- 4000 A rated primary current.
- 5 A rated secondary current.
- 102 × 55.5 mm rectangular busbar aperture.
- Designed for indirect AC current measurement.
- Suitable for compatible digital meters and power analysers with 5 A CT inputs.
- Designed for high-current industrial electrical distribution applications.
Reliable High-Current Measurement
Measuring currents in the thousands of amperes requires a current transformer capable of reducing the primary current to a safe, standardised level for instrumentation. The Lovato DM39T4000 transforms a rated 4000 A primary current into a 5 A secondary current, allowing compatible measuring equipment to monitor the circuit without carrying the primary load current.
Its generous 102 × 55.5 mm busbar aperture makes the DM39T4000 particularly appropriate for high-capacity switchboards and distribution systems using large busbars. The result is a practical current-sensing solution for industrial metering, power analysis and energy-monitoring installations.
Typical Applications
- High-current industrial switchboards.
- Main low-voltage distribution assemblies.
- Large busbar current measurement.
- Digital multimeter installations.
- Power analyser systems.
- Energy-monitoring and management systems.
- Industrial plant electrical monitoring.
- OEM power-distribution equipment.
