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DM1TA0250 – SPLIT C/TRANSFORMER 250/5A 50X80MM
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.
£103.18
Why Choose the Lovato DM1TA0250 Split-Core Current Transformer?
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.
Key Advantages
- Accurate 250/5 A current transformation ratio.
- Split-core construction simplifies installation around existing conductors.
- Large 52 × 80 mm internal opening for cables and busbars.
- Class 0.5 accuracy at 1 VA for precision metering.
- Class 1 accuracy at 2 VA for general measurement applications.
- Standard 5 A secondary output for compatible measuring instruments.
Key Features
- Lovato DM series split-core current transformer.
- 250 A rated primary current.
- 5 A rated secondary current.
- 52 × 80 mm rectangular aperture.
- Class 0.5 accuracy with a 1 VA burden.
- Class 1 accuracy with a 2 VA burden.
- Suitable for 50/60 Hz electrical systems.
- 720 V rated insulation voltage.
- Continuous overload capability of 120% of rated primary current.
- Screw-terminal secondary connections.
- Snap and screw fixing options for secure mounting.
Convenient Retrofit Current Measurement
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.
Typical Applications
- Retrofit energy-monitoring systems.
- Industrial power distribution panels.
- Low-voltage switchboards.
- Multifunction electrical meters.
- Energy management systems.
- Power quality analysers.
- Motor control centres.
- Commercial and industrial building services.
Technical Specifications
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| Mounting Type | Panel / base | |
|---|---|---|
| Rated Primary Current (A) | 250 A | |
| Secondary Current / Output | 5 A | |
| Accuracy Class | Class 0.5 | |
| Device Type | Split-core CT | |
| 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 |
Frequently Asked Questions
What is the Lovato DM1TA0250 used for?
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.
Can the DM1TA0250 be installed around an existing conductor?
Yes. Its split-core construction allows it to be opened and installed around an existing cable or busbar without disconnecting the primary conductor.
What is the internal opening of the DM1TA0250?
The current transformer has a rectangular internal opening measuring approximately 52 × 80 mm.
What accuracy does the DM1TA0250 provide?
It provides Class 0.5 accuracy at a 1 VA burden and Class 1 accuracy at a 2 VA burden.
Which instruments can be connected to the DM1TA0250?
The transformer can be connected to compatible multifunction meters, energy analysers and monitoring devices designed for a standard 5 A current-transformer input.
Trusted for Industrial Energy Monitoring
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.
