Lovato DM2T0300 solid-core current transformer with a 300/5 A transformation ratio, 23 mm cable opening, class 0.5 accuracy and 1.5 VA rated secondary apparent power.
£20.45
The Lovato DM2T0300 is a dependable solid-core current transformer designed for accurate current measurement in industrial switchboards, commercial distribution panels and energy-monitoring systems. Featuring a 300/5 A transformation ratio, it converts a primary current of up to 300 A into a standard 5 A secondary output for connection to compatible ammeters, energy meters, multifunction measuring instruments and power analysers.
Its solid-core construction provides a secure and durable measurement solution for new electrical installations where the primary conductor can be passed through the transformer during panel assembly. The DM2T0300 accommodates round cables up to 23 mm in diameter and supports several standard rectangular busbar sizes, providing installation flexibility within low-voltage switchgear and industrial control panels.
The transformer offers accuracy class 0.5 with a rated secondary apparent power of 1.5 VA, supporting dependable electrical metering and energy-management applications. Its compact housing, secure secondary connections and snap-mounting capability help simplify installation while providing reliable long-term current measurement.
Current transformers provide a safe method of monitoring high electrical currents by converting the primary current into a proportional lower-current output for compatible measuring instruments. The Lovato DM2T0300 converts a primary current of up to 300 A into a standard 5 A secondary signal, enabling accurate load measurement without connecting meters directly to the high-current circuit.
The solid-core format is particularly suitable for new switchboard and control-panel assemblies. During installation, the cable or busbar is passed through the transformer opening before the primary circuit is connected. This creates a secure arrangement for continuous energy measurement, load monitoring and power-system analysis.
| Current | 5 A |
|---|---|
| Manufacturer | Lovato Electric |
| Series | DM2T |
| Model | DM2T0300 |
| Product type | Solid-core current transformer |
| Primary current | 300 A |
| Secondary current | 5 A |
| Transformation ratio | 300/5 A |
| Opening diameter | 23 mm |
| Rectangular opening | 30 × 10 mm |
| Compatible busbars | 30 × 10 mm, 25 × 12.5 mm and 20 × 15 mm |
| Accuracy class | Class 0.5 |
| Rated secondary apparent power | 1.5 VA |
| Overcurrent limiting factor | FS5 |
| Rated operating frequency | 50/60 Hz |
| Number of primary inputs | 1 |
| Secondary connection | Screw connection |
| Mounting method | Snap mounting |
| Calibrated | No |
| Copper rail included | No |
| Conformity | IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2 |
| Certification | EAC |
| Product weight | approx. 140 g |
| Package dimensions | 56 × 49 × 70 mm |
| EAN | 8013975121825 |
| HS Code | 85389091 |
The DM2T0300 is used to measure electrical currents in switchboards, distribution panels and energy-monitoring systems. It converts a primary current of up to 300 A into a standard 5 A secondary output.
The current transformer has a 300/5 A transformation ratio, meaning that a nominal 300 A primary current corresponds to a 5 A secondary current.
The transformer can accommodate a round cable with a maximum diameter of approximately 23 mm.
The transformer is suitable for rectangular busbars measuring 30 × 10 mm, 25 × 12.5 mm or 20 × 15 mm.
No. The DM2T0300 has a solid-core construction, so the conductor must be disconnected or passed through the transformer during panel assembly. A split-core transformer is more suitable when an existing conductor cannot be disconnected.
Lovato Electric current transformers are widely used by panel builders, electrical contractors and industrial engineers to provide accurate current measurement, straightforward integration and dependable performance in modern electrical distribution systems.
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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...