Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
DM3TP0500 – ACCURACY CLASS C/TRANSFORMER 500/5A 52MM DIAM.
Lovato DM3TP0500 high-accuracy solid-core current transformer with a 500/5 A transformation ratio, 52 mm cable opening, class 0.5S and class 0.5 accuracy for precision energy measurement.
£95.45
Why Choose the Lovato DM3TP0500 High-Accuracy Solid-Core Current Transformer?
The Lovato DM3TP0500 is a high-accuracy solid-core current transformer designed for dependable current measurement in industrial switchboards, electrical distribution panels and precision energy-monitoring systems. Featuring a 500/5 A transformation ratio, it converts a primary current of up to 500 A into a standard 5 A secondary output for connection to compatible energy meters, multifunction measuring instruments, ammeters and power analysers.
Its solid-core construction provides a secure and durable measuring solution for new electrical installations where the primary conductor can be routed through the transformer during panel assembly. The DM3TP0500 accommodates round cables up to 52 mm in diameter and rectangular busbars measuring 60 × 20 mm or 50 × 25 mm, making it suitable for substantial conductors used in industrial power-distribution equipment.
Designed for applications requiring enhanced measurement performance, the DM3TP0500 provides a rated burden of 3.75 VA at accuracy class 0.5S and 5 VA at accuracy class 0.5. Its robust construction, 50–60 Hz operating frequency and 720 V insulation rating support precise, stable current measurement in demanding commercial and industrial environments.
Key Advantages
- High-accuracy solid-core current transformer for precision metering applications.
- 500/5 A transformation ratio for standard industrial measuring equipment.
- Large 52 mm circular opening accommodates substantial power cables.
- Suitable for 60 × 20 mm and 50 × 25 mm busbars.
- Accuracy class 0.5S and class 0.5 options support reliable energy measurement.
- Robust construction provides dependable service in industrial electrical panels.
Key Features
- Lovato DM3TP high-accuracy current transformer series.
- 500 A rated primary current.
- 5 A rated secondary current.
- Solid-core construction for secure conductor installation.
- 52 mm circular cable opening.
- Compatible with 60 × 20 mm and 50 × 25 mm busbars.
- 3.75 VA burden at accuracy class 0.5S.
- 5 VA burden at accuracy class 0.5.
- 120% continuous overload withstand.
- 720 V rated insulation voltage.
High-Accuracy Current Measurement for Electrical Panels
Current transformers provide a safe method of measuring high electrical currents by converting the primary current into a proportional lower-current output for compatible instrumentation. The Lovato DM3TP0500 converts a primary current of up to 500 A into a standard 5 A secondary signal, allowing meters and monitoring equipment to measure electrical loads without being connected directly to the high-current circuit.
The class 0.5S measurement capability makes this transformer especially suitable for applications where accurate readings are required across a wider operating range. Its solid-core construction is intended for new switchboard and control-panel assemblies, with the cable or busbar passed through the transformer before the primary circuit is connected.
Typical Applications
- Industrial switchboards and power-distribution panels.
- Revenue-grade and high-accuracy energy metering systems.
- Multifunction measuring instruments and power analysers.
- Building and facility energy-management systems.
- Electrical load and maximum-demand monitoring.
- Industrial machinery and automation panels.
- Commercial power-distribution installations.
- New panel-building and switchgear projects.
Technical Specifications
Tick the specs you need, then view products that match.
| Rated Burden (VA) | 3.75 VA | |
|---|---|---|
| Rated Primary Current (A) | 500 A | |
| Secondary Current / Output | 5 A | |
| Aperture (mm) | 52 mm | |
| Device Type | Solid-core CT | |
| Current | 5 A | |
| Manufacturer | Lovato Electric | |
| Series | DM3TP | |
| Model | DM3TP0500 | |
| Product type | High-accuracy solid-core current transformer | |
| Primary current | 500 A | |
| Secondary current | 5 A | |
| Transformation ratio | 500/5 A | |
| Cable opening diameter | 52 mm | |
| Compatible busbars | 60 × 20 mm and 50 × 25 mm | |
| Operating frequency | 50–60 Hz | |
| Burden at accuracy class 0.5S | 3.75 VA | |
| Burden at accuracy class 0.5 | 5 VA | |
| Continuous overload withstand | 120% of rated primary current | |
| Rated insulation voltage | 720 V | |
| Short-time thermal current | 40–60 × rated primary current for 1 second | |
| Rated dynamic current | 2.5 × short-time thermal current | |
| Current transformer type | Solid-core | |
| Conformity | IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2 | |
| Certification | EAC | |
| HS Code | 85043180 |
Frequently Asked Questions
What is the Lovato DM3TP0500 used for?
The DM3TP0500 is used for accurate current measurement in switchboards, distribution panels and energy-monitoring systems. It converts a primary current of up to 500 A into a standard 5 A secondary output.
What is the transformation ratio of the DM3TP0500?
The transformer has a 500/5 A transformation ratio, meaning that a nominal primary current of 500 A corresponds to a 5 A secondary current.
What cable size can pass through the DM3TP0500?
The transformer accommodates a round cable with a maximum diameter of approximately 52 mm.
Which busbar sizes are compatible with the DM3TP0500?
The transformer is suitable for rectangular busbars measuring 60 × 20 mm or 50 × 25 mm.
What measurement accuracy does the DM3TP0500 provide?
The transformer provides a burden of 3.75 VA at accuracy class 0.5S and 5 VA at accuracy class 0.5, making it suitable for precision current and energy measurement.
Trusted High-Accuracy Measurement from Lovato Electric
Lovato Electric current transformers are used by panel builders, electrical contractors and energy-management professionals to provide accurate current measurement, dependable integration and reliable long-term performance in industrial power systems.
