Lovato DM1TA0250 split-core current transformer with a 250/5 A ratio, 52 x 80 mm opening, Class 0.5 accuracy at 1 VA and Class 1 accuracy at 2 VA for electrical metering and energy monitoring.
£114.65
The Lovato DM1TA0250 is a high-accuracy split-core current transformer designed for electrical metering, energy monitoring and load measurement applications. Featuring a 250/5 A transformation ratio, it converts a primary current of 250 A into a standard 5 A secondary signal for compatible multifunction meters, power analysers and monitoring equipment.
Its split-core construction allows the transformer to be installed around an existing cable or busbar without disconnecting the primary conductor. This makes the DM1TA0250 particularly suitable for retrofit energy-monitoring projects, system upgrades and installations where interrupting the electrical supply would be difficult or costly.
With a generous 52 × 80 mm internal opening, Class 0.5 accuracy at 1 VA and Class 1 accuracy at 2 VA, the DM1TA0250 provides dependable measurement performance for industrial switchboards and power distribution systems. Its insulated housing and secure screw-terminal connections support safe, professional installation in demanding electrical environments.
Unlike a solid-core transformer, the Lovato DM1TA0250 can be opened and fitted around an existing conductor. This allows electrical measurement equipment to be added to operational switchboards without removing cable terminations or feeding the conductor through a closed transformer aperture.
The standard 5 A secondary output supports a broad range of industrial meters and power analysers. Its dual accuracy ratings provide flexibility for both precision energy measurement and general electrical monitoring applications.
| Current | 5 A |
|---|---|
| Manufacturer | Lovato Electric |
| Series | DM |
| Model | DM1TA0250 |
| Product type | Split-core current transformer |
| Primary current | 250 A |
| Secondary current | 5 A |
| Transformation ratio | 250/5 A |
| Accuracy class at 1 VA | Class 0.5 |
| Accuracy class at 2 VA | Class 1 |
| Rated frequency | 50 / 60 Hz |
| Internal opening | 52 × 80 mm |
| Core type | Split core |
| Rated insulation voltage | 720 V |
| Continuous overload withstand | 120% of rated primary current |
| Short-time thermal current | 40 × rated primary current for 1 second |
| Dynamic current withstand | 2.5 × short-time thermal current |
| Overcurrent limiting factor | FS5 |
| Secondary connection | Screw terminals |
| Mounting | Snap or screw fixing |
| Weight | Approximately 1 kg |
| EAN | 8013975178560 |
| Conformity | IEC/EN 60044-1 |
| HS Code | 85389091 |
The DM1TA0250 converts a 250 A primary current into a standard 5 A secondary signal for compatible electrical meters, power analysers and energy-monitoring equipment.
Yes. Its split-core construction allows it to be opened and installed around an existing cable or busbar without disconnecting the primary conductor.
The current transformer has a rectangular internal opening measuring approximately 52 × 80 mm.
It provides Class 0.5 accuracy at a 1 VA burden and Class 1 accuracy at a 2 VA burden.
The transformer can be connected to compatible multifunction meters, energy analysers and monitoring devices designed for a standard 5 A current-transformer input.
Lovato split-core current transformers are widely used by panel builders, electrical contractors and energy specialists to add dependable current measurement to new and existing power distribution systems.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...