Why Choose the Lovato DM1TA0300 Split-Core Current Transformer?
The Lovato DM1TA0300 is a reliable split-core current transformer designed for accurate electrical current measurement in industrial and commercial power systems. Featuring a 300/5 A transformation ratio, it converts a primary current of 300 A into a standard 5 A secondary signal for compatible multifunction meters, energy analysers and monitoring equipment.
Its split-core construction allows the transformer to be opened and fitted around an existing conductor without disconnecting the cable or busbar. This makes the DM1TA0300 particularly suitable for retrofit energy-monitoring projects, electrical system upgrades and installations where interrupting the power supply would be impractical.
With a spacious 52 × 80 mm internal opening, Class 0.5 accuracy at 1.5 VA and Class 1 accuracy at 3 VA, the DM1TA0300 provides dependable measurement performance for switchboards, distribution panels and energy-management systems. Its robust insulated construction and standard 5 A output make it a practical choice for professional electrical installations.
Key Advantages
- Accurate 300/5 A current transformation ratio.
- Split-core construction allows installation around existing conductors.
- Large 52 × 80 mm internal opening for cables and busbars.
- Class 0.5 accuracy at 1.5 VA for precision measurement.
- Class 1 accuracy at 3 VA for general metering applications.
- Standard 5 A secondary output for compatible measuring instruments.
Key Features
- Lovato DM series split-core current transformer.
- 300 A rated primary current.
- 5 A rated secondary current.
- 52 × 80 mm rectangular aperture.
- Class 0.5 accuracy with a 1.5 VA burden.
- Class 1 accuracy with a 3 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.
- Secure fixing for switchboard and panel installation.
Convenient Retrofit Current Measurement
Unlike a solid-core transformer, the Lovato DM1TA0300 can be opened and installed around an existing conductor. This enables current measurement equipment to be added to operational switchboards without removing cable terminations or passing the conductor through a closed transformer aperture.
The standard 5 A secondary output is compatible with a broad range of multifunction meters and power analysers. Its large rectangular opening accommodates substantial cables and busbars, while its two accuracy and burden ratings provide flexibility for precision metering and general electrical monitoring.
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.
