Lovato DM5TP1250 accuracy solid-core current transformer with a 1250/5 A ratio, 85.5 mm cable aperture and compatibility with 100 × 20 mm and 80 × 45 mm busbars.
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Why Choose the Lovato DM5TP1250 Accuracy Current Transformer?
The Lovato DM5TP1250 is a precision solid-core current transformer designed for accurate electrical current measurement in industrial switchboards, energy metering systems and power monitoring installations. With a rated primary current of 1250 A and a standard 5 A secondary output, it converts high line currents into a safe and proportional signal for compatible meters, network analysers and measuring instruments.
Part of the Lovato Electric DM range, the DM5TP1250 is engineered for applications where dependable metering accuracy is required. It supports both accuracy class 0.5S and accuracy class 0.5, making it suitable for detailed energy measurement, load analysis and electrical monitoring across commercial and industrial systems.
The transformer accommodates cables up to 85.5 mm in diameter and is suitable for 100 × 20 mm or 80 × 45 mm busbars. Its solid-core construction provides a stable magnetic circuit, while the 1250/5 A transformation ratio enables straightforward integration with compatible 5 A measuring devices.
Key Advantages
Accurate 1250/5 A current transformation ratio.
Accuracy class 0.5S performance for precision energy metering.
Solid-core construction provides stable and dependable measurement.
Large 85.5 mm cable aperture for substantial conductors.
Compatible with 100 × 20 mm and 80 × 45 mm busbars.
Suitable for digital energy meters, network analysers and monitoring instruments.
Key Features
Lovato Electric DM series accuracy current transformer.
1250 A rated primary current.
5 A rated secondary current.
50/60 Hz operating frequency.
7.5 VA burden at accuracy class 0.5S.
10 VA burden at accuracy class 0.5.
120% primary-current overload withstand.
720 V AC rated insulation voltage.
Suitable for cables up to 85.5 mm diameter.
Conforms to applicable IEC, EN and BS 61869 standards.
Precision Measurement for Energy Monitoring Systems
Current transformers reduce high primary currents to a standard secondary current that can be safely measured by compatible electrical instruments. The Lovato DM5TP1250 converts a primary current of up to 1250 A into a proportional 5 A output, allowing connected equipment to measure current and energy consumption without carrying the full line current.
Its class 0.5S capability makes the DM5TP1250 particularly suitable for applications that require improved accuracy across a wider operating range. This supports reliable energy analysis, billing-related monitoring, load profiling and efficiency assessments in industrial and commercial electrical systems.
Typical Applications
Precision energy metering systems.
Industrial switchboards and distribution panels.
Power quality and network monitoring equipment.
Digital multimeters and energy analysers.
Load profiling and consumption monitoring.
Commercial building energy-management systems.
Manufacturing and process-control facilities.
Electrical infrastructure and utility monitoring.
Technical Specifications
Current
5 A
Manufacturer
Lovato Electric
Series
DM
Model
DM5TP1250
Product type
Accuracy solid-core current transformer
Primary current
1250 A
Secondary current
5 A
Transformation ratio
1250/5 A
Operating frequency
50/60 Hz
Accuracy class 0.5S burden
7.5 VA
Accuracy class 0.5 burden
10 VA
Primary-current overload withstand
120%
Rated insulation voltage
720 V AC
Rated short-time thermal current
40 to 60 × Ipn for 1 second
Rated dynamic current
2.5 × Ith
Cable aperture
Ø85.5 mm
Compatible busbar sizes
100 × 20 mm and 80 × 45 mm
Construction
Solid core
Applicable standards
IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2
HS Code
85043180
Frequently Asked Questions
What is the Lovato DM5TP1250 used for?
The Lovato DM5TP1250 converts high primary currents into a proportional 5 A secondary signal for energy meters, network analysers and other electrical measuring instruments.
What is the current ratio of the DM5TP1250?
The current transformer has a transformation ratio of 1250/5 A, meaning that a 1250 A primary current produces a 5 A secondary output.
What accuracy classes does the DM5TP1250 support?
It supports accuracy class 0.5S with a 7.5 VA burden and accuracy class 0.5 with a 10 VA burden.
What conductor sizes are compatible with the transformer?
The DM5TP1250 accommodates cables up to 85.5 mm in diameter and supports 100 × 20 mm or 80 × 45 mm busbars.
Is the DM5TP1250 suitable for precision energy metering?
Yes. Its class 0.5S accuracy makes it suitable for applications requiring reliable energy measurement and detailed electrical consumption monitoring.
Trusted for Precision Energy Measurement
Lovato Electric accuracy current transformers are widely used by panel builders, electrical engineers and energy-management specialists for dependable metering, power monitoring and electrical load analysis.
Current
5 A
Manufacturer
Lovato Electric
Series
DM
Model
DM5TP1250
Product type
Accuracy solid-core current transformer
Primary current
1250 A
Secondary current
5 A
Transformation ratio
1250/5 A
Operating frequency
50/60 Hz
Accuracy class 0.5S burden
7.5 VA
Accuracy class 0.5 burden
10 VA
Primary-current overload withstand
120%
Rated insulation voltage
720 V AC
Rated short-time thermal current
40 to 60 × Ipn for 1 second
Rated dynamic current
2.5 × Ith
Cable aperture
Ø85.5 mm
Compatible busbar sizes
100 × 20 mm and 80 × 45 mm
Construction
Solid core
Applicable standards
IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2
HS Code
85043180
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...