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DM2T0250 – CURRENT TRANSFORMER 250/5A
Lovato DM2T0250 solid-core current transformer with a 250/5 A transformation ratio, 23 mm opening, class 1 accuracy and 2.5 VA burden for industrial current measurement.
£16.84
Why Choose the Lovato DM2T0250 Solid-Core Current Transformer?
The Lovato DM2T0250 is a robust solid-core current transformer designed for accurate current measurement in industrial switchboards, commercial distribution panels and energy monitoring systems. Featuring a 250/5 A transformation ratio, it converts primary currents up to 250 A into a standard 5 A secondary output for connection to energy meters, multifunction measuring instruments, ammeters and power analysers.
Its solid-core construction provides a durable solution for new electrical installations where conductors can be routed through the transformer during panel assembly. Suitable for both round conductors and rectangular busbars, the DM2T0250 delivers dependable performance in demanding industrial and commercial environments.
Designed for 50/60 Hz operation, the transformer provides a 2.5 VA burden at accuracy class 1 and features Faston secondary terminals with DIN rail or screw mounting options. Its compact dimensions allow easy integration into modern electrical panels while maintaining reliable long-term performance.
Key Advantages
- Reliable solid-core current transformer for new electrical installations.
- 250/5 A transformation ratio for standard industrial metering equipment.
- Suitable for round cables up to 23 mm diameter.
- Compatible with 30 × 10 mm, 25 × 12.5 mm and 20 × 15 mm busbars.
- Class 1 accuracy with a 2.5 VA burden.
- DIN rail or screw mounting for flexible installation.
Key Features
- Lovato DM2T series current transformer.
- 250 A rated primary current.
- 5 A rated secondary current.
- Solid-core construction.
- 23 mm cable opening.
- Supports several standard rectangular busbar sizes.
- 2.5 VA rated burden.
- Accuracy class 1.
- 720 V rated insulation voltage.
- Faston secondary terminals with DIN rail or screw fixing.
Reliable Current Measurement for Power Distribution
Current transformers safely reduce high primary currents into proportional secondary currents suitable for measuring equipment. The Lovato DM2T0250 converts currents up to 250 A into a standard 5 A output, allowing accurate electrical monitoring without connecting measuring devices directly to high-current conductors.
Its solid-core construction makes it ideal for new switchboard assemblies where conductors are installed through the transformer during panel construction. Combined with its compact size and flexible mounting options, it provides dependable long-term performance in industrial power-distribution systems.
Typical Applications
- Industrial switchboards.
- Commercial distribution panels.
- Energy monitoring systems.
- Power analysers and multifunction meters.
- Building management systems.
- Industrial automation.
- Electrical load monitoring.
- OEM control panels.
Technical Specifications
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| Mounting Type | DIN rail, Panel / base | |
|---|---|---|
| Rated Primary Current (A) | 250 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 23 mm | |
| Accuracy Class | Class 1 | |
| Rated Burden (VA) | 2.5 VA | |
| Device Type | Solid-core CT | |
| Current | 5 A | |
| Manufacturer | Lovato Electric | |
| Series | DM2T | |
| Model | DM2T0250 | |
| Product type | Solid-core current transformer | |
| Primary current | 250 A | |
| Secondary current | 5 A | |
| Transformation ratio | 250/5 A | |
| Opening diameter | 23 mm | |
| Compatible busbars | 30 × 10 mm, 25 × 12.5 mm and 20 × 15 mm | |
| Accuracy class | Class 1 | |
| Rated burden | 2.5 VA | |
| Operating frequency | 50/60 Hz | |
| Overload withstand | 120% of rated primary current | |
| Rated insulation voltage | 720 V | |
| Insulation class | Class E | |
| Terminal type | Faston | |
| Mounting | DIN rail or screw fixing | |
| Protection rating | IP30 | |
| Operating temperature | -25°C to +50°C | |
| Weight | approx. 130 g | |
| Dimensions | 52 × 46.5 × 56.5 mm | |
| Conformity | IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2 | |
| Certification | CE, UKCA and EAC | |
| EAN | 8013975121818 | |
| HS Code | 85043180 |
Frequently Asked Questions
What is the Lovato DM2T0250 used for?
The DM2T0250 measures primary currents up to 250 A and provides a standard 5 A secondary output for compatible electrical measuring instruments.
What is the transformation ratio?
The transformer has a 250/5 A transformation ratio.
Can it be installed around an existing cable?
No. The DM2T0250 uses a solid-core design, so the conductor must pass through the transformer during installation. For retrofit installations, a split-core transformer is generally more suitable.
What cable and busbar sizes are supported?
The transformer accepts round conductors up to 23 mm diameter and rectangular busbars measuring 30 × 10 mm, 25 × 12.5 mm or 20 × 15 mm.
How is the DM2T0250 mounted?
The transformer can be installed using either DIN rail mounting or screw fixing, providing flexibility for different panel layouts.
Trusted by Electrical Professionals Worldwide
Lovato Electric current transformers are trusted by panel builders, electrical contractors and industrial engineers for reliable current measurement, dependable performance and straightforward integration into modern electrical distribution systems.
