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DM39T4000 Lovato CURRENT TRANSFORMER 4000/5A 102×55,5
Lovato DM39T4000 is a 4000/5 A current transformer with a 102 × 55.5 mm rectangular busbar aperture for indirect high-current measurement in industrial electrical distribution and power-monitoring systems.
£337.09
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.
Technical Specifications
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| Rated Primary Current (A) | 4000 A | |
|---|---|---|
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 55.5 mm | |
| Device Type | Solid-core CT | |
| HS Code | 85043180 | |
| Manufacturer | Lovato Electric | |
| Series | DM | |
| Model | DM39T4000 | |
| Product type | Current transformer | |
| Rated primary current | 4000 A | |
| Rated secondary current | 5 A | |
| Transformation ratio | 4000/5 A | |
| Busbar aperture | 102 × 55.5 mm | |
| Primary conductor arrangement | Busbar through rectangular aperture | |
| Measurement | Indirect AC current measurement | |
| Application | Electrical measurement and power monitoring |
Frequently Asked Questions
What is the transformation ratio of the Lovato DM39T4000?
The DM39T4000 has a transformation ratio of 4000/5 A, producing a 5 A secondary current when the primary current is at its rated 4000 A value.
What is the secondary current of the DM39T4000?
The rated secondary current is 5 A, making the transformer suitable for compatible measuring instruments and power analysers designed for a 5 A CT input.
What size busbar opening does the DM39T4000 have?
The DM39T4000 has a rectangular 102 × 55.5 mm aperture designed to accommodate substantial busbars in high-current electrical installations.
What is the Lovato DM39T4000 used for?
It is designed for indirect measurement of high AC currents in applications such as switchboards, distribution assemblies, power-monitoring systems and industrial electrical installations.
Can the DM39T4000 be connected to a digital power meter?
Yes. The DM39T4000 can be used with compatible digital meters and power analysers designed for a 5 A current-transformer secondary input, provided the complete measurement system is correctly specified and configured.
Trusted for Industrial Current Measurement
Lovato current transformers provide a practical interface between high-current power circuits and electrical measuring instruments, supporting dependable current monitoring, power analysis and energy management in demanding industrial distribution systems.
