Lovato DM1TP0300 is a precision solid-core 300/5 A current transformer with Class 0.5s accuracy at 2.5 VA, a 28 mm cable aperture and compatibility with 30 × 10 mm, 25 × 15 mm and 20 × 20 mm busbars.
£72.27
The Lovato DM1TP0300 is a precision solid-core current transformer designed to convert a primary current of 300 A into a standard 5 A secondary output for compatible energy meters, multifunction instruments and power analysers. Its through-hole construction provides a Ø28 mm aperture for cables and also accommodates selected rectangular busbars.
Designed for accurate electrical measurement, the DM1TP0300 provides Class 0.5s accuracy at 2.5 VA and Class 0.5 accuracy at 5 VA. It operates across 50–60 Hz, supports continuous overload up to 120% of rated primary current and has a rated insulation voltage of 720 V.
The transformer can accommodate 30 × 10 mm, 25 × 15 mm and 20 × 20 mm busbars as well as suitable cables through its circular aperture. Screw secondary terminals and the choice of DIN rail or screw fixing make the DM1TP0300 a practical solution for switchboards, metering panels and industrial energy-monitoring installations.
A current transformer converts the higher current flowing through a primary conductor into a proportional secondary current suitable for electrical measuring instruments. The Lovato DM1TP0300 converts a nominal 300 A primary current into a standard 5 A secondary signal, allowing compatible energy meters, ammeters and power analysers to monitor higher-current circuits accurately.
The Ø28 mm aperture accepts suitable cables, while compatibility with 30 × 10 mm, 25 × 15 mm and 20 × 20 mm busbars provides flexibility for switchboard installations. Its Class 0.5s accuracy at 2.5 VA makes the DM1TP0300 particularly suitable for energy-monitoring applications where precise current transformation is required.
| Manufacturer | Lovato Electric |
|---|---|
| Series | DM1TP |
| Model | DM1TP0300 |
| Product type | Precision current transformer |
| CT type | Solid-core / through-hole |
| Primary current Ipn | 300 A |
| Secondary output current | 5 A |
| Transformation ratio | 300/5 A |
| Cable aperture | Ø28 mm |
| Compatible busbars | 30 × 10 mm, 25 × 15 mm, 20 × 20 mm |
| Operating frequency | 50–60 Hz |
| Continuous overload withstand | 120% of Ipn |
| Class 0.5s burden | 2.5 VA |
| Class 0.5 burden | 5 VA |
| Rated insulation voltage Ui | 720 V |
| Rated short-time thermal current Ith | 40–60 × Ith for 1 s |
| Rated dynamic current Idyn | 2.5 × Ith |
| Insulation | Dry type, Class E |
| Terminal type | Screw |
| Fixing | DIN rail or screw |
| Protection rating | IP30 |
| Operating temperature | -25 to +50 °C |
| Storage temperature | -40 to +80 °C |
| Maximum relative humidity | 90% |
| Overall dimensions | 74.5 × 98.5 × 60 mm |
| Product weight | 480 g |
| Standards | IEC/EN/BS 61869-1, IEC/EN/BS 61869-2 |
| Certification | EAC |
| EAN | 8013975219263 |
| HS code | 85043180 |
The DM1TP0300 is a precision solid-core current transformer used to convert a primary current of 300 A into a proportional 5 A secondary current for compatible meters, power analysers and energy-monitoring equipment.
The DM1TP0300 has a transformation ratio of 300/5 A, meaning a nominal primary current of 300 A corresponds to a 5 A secondary output.
The Lovato DM1TP0300 has a circular through-hole with a diameter of 28 mm for the primary conductor.
The transformer accommodates 30 × 10 mm, 25 × 15 mm and 20 × 20 mm busbars in addition to suitable cables passing through its circular aperture.
The DM1TP0300 provides Class 0.5s accuracy at 2.5 VA and Class 0.5 accuracy at 5 VA.
The current transformer is designed for AC electrical systems operating between 50 and 60 Hz.
The DM1TP0300 can be installed using either DIN rail mounting or screw fixing, providing flexibility for switchboard and electrical-panel installations.
The Lovato DM1TP0300 complies with IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2 standards applicable to instrument and current transformers.
Lovato Electric current transformers provide dependable current-measurement solutions for panel builders, electrical engineers and energy-management professionals, combining precision transformation, standard 5 A secondary outputs and flexible cable or busbar installation for integration with compatible metering and power-analysis equipment.
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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...