Lovato DM1TMA0250 compact prewired split-core current transformer with a 250/5 A transformation ratio, 24 x 24 mm opening, class 1 accuracy, 1 VA burden and 2 m secondary cable.
£118.30
The Lovato DM1TMA0250 is a compact split-core current transformer designed for accurate current measurement in industrial and commercial electrical installations. Featuring a 250/5 A transformation ratio, it converts high primary currents into a standard 5 A secondary output for connection to energy meters, multifunction measuring instruments, power analysers and protection devices.
Its split-core construction allows installation around existing conductors without disconnecting the primary circuit, making it an excellent choice for retrofit energy monitoring, switchboard upgrades and preventative maintenance projects. This reduces installation time while minimising disruption to operational equipment.
The DM1TMA0250 features a compact housing with a 24 × 24 mm internal opening and is supplied complete with a 2 m prewired secondary cable for straightforward installation. Operating at 50/60 Hz with Class 1 accuracy and a 1 VA rated burden, it delivers dependable performance for electrical monitoring and energy management applications.
Current transformers safely convert high electrical currents into proportional low-current signals suitable for measuring equipment. The Lovato DM1TMA0250 converts currents up to 250 A into a standard 5 A secondary output, allowing accurate monitoring of electrical loads without direct connection to high-current conductors.
Its compact split-core design is ideal for retrofit installations where existing conductors cannot easily be disconnected. Combined with the supplied prewired cable, installation is fast and straightforward while supporting reliable energy monitoring and electrical diagnostics.
| Current | 5 A |
|---|---|
| Manufacturer | Lovato Electric |
| Series | DM1TMA |
| Model | DM1TMA0250 |
| Product type | Compact prewired split-core current transformer |
| Primary current | 250 A |
| Secondary current | 5 A |
| Transformation ratio | 250/5 A |
| Internal opening | 24 × 24 mm |
| Accuracy class | Class 1 |
| Rated burden | 1 VA |
| Operating frequency | 50/60 Hz |
| Overload withstand | 120% of rated primary current |
| Rated insulation voltage | 720 V |
| Insulation class | Class E |
| Secondary connection | 2 m prewired cable |
| Operating temperature | -25°C to +50°C |
| Storage temperature | -40°C to +80°C |
| Relative humidity | 90% max. |
| Conformity | IEC/EN/BS 61869-1 & IEC/EN/BS 61869-2 |
| Certification | CE, UKCA, EAC |
| Weight | approx. 200 g |
| EAN | 8013975219034 |
| HS Code | 85043180 |
The DM1TMA0250 measures electrical currents up to 250 A and provides a standard 5 A secondary output for compatible metering and monitoring equipment.
Yes. Its split-core construction allows the transformer to be fitted around an existing conductor without disconnecting the primary circuit.
The transformer features a 24 × 24 mm internal opening suitable for compatible cables and busbars.
Yes. The DM1TMA0250 is supplied prewired with a 2 m secondary connection cable for quick installation.
The transformer complies with IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2 current transformer standards.
Lovato Electric current transformers are trusted by panel builders, electrical contractors and industrial engineers for reliable current measurement, simple installation and dependable long-term performance.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...