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DM4TA4000 – SPLIT C/TRANSFORMER 4000/5A 80X160MM
Lovato DM4TA4000 split-core current transformer with a 4000/5 A ratio, an 80 × 160 mm internal opening and Class 0.5 or Class 1 measurement performance.
£308.39
Why Choose the Lovato DM4TA4000 Split-Core Current Transformer?
The Lovato DM4TA4000 is a high-capacity split-core current transformer designed for accurate current measurement in industrial switchboards, electrical distribution systems and energy monitoring installations. With a rated primary current of 4000 A and a standard 5 A secondary output, it converts high line currents into a safe and proportional signal for compatible energy meters, network analysers, ammeters and protection equipment.
Unlike a conventional solid-core transformer, the DM4TA4000 can be opened and installed around an existing conductor or busbar without disconnecting the primary circuit. This split-core construction makes it particularly suitable for retrofit projects, energy-management upgrades and maintenance work where minimising downtime and installation disruption is essential.
The transformer features a substantial 80 × 160 mm internal opening for large conductors and busbar assemblies. It provides a rated burden of 20 VA at accuracy class 0.5 and 25 VA at accuracy class 1, delivering reliable measurement performance for demanding high-current power distribution applications.
Key Advantages
- High-capacity 4000/5 A current transformation ratio.
- Split-core construction enables installation around existing conductors.
- Large 80 × 160 mm internal opening for substantial busbar systems.
- Helps reduce installation time by avoiding primary circuit disconnection.
- Class 0.5 and class 1 accuracy performance for metering and monitoring.
- Suitable for energy meters, network analysers, ammeters and protection relays.
Key Features
- Lovato Electric DM series current transformer.
- Split-core design for convenient retrofit installation.
- 4000 A rated primary current.
- 5 A rated secondary current.
- 50/60 Hz operating frequency.
- 20 VA burden at accuracy class 0.5.
- 25 VA burden at accuracy class 1.
- 120% rated primary-current overload withstand.
- 80 × 160 mm conductor opening.
- Secure screw-terminal secondary connections.
Flexible High-Current Measurement for Existing Installations
Current transformers reduce high primary currents to a standard secondary value that can be safely measured by compatible electrical instruments. The Lovato DM4TA4000 converts a primary current of up to 4000 A into a proportional 5 A signal, allowing connected equipment to monitor electrical loads without carrying the full line current.
Its split-core construction allows the transformer to be opened and positioned around an installed conductor or busbar. This provides a practical solution for adding energy monitoring, upgrading an existing metering system or replacing a current transformer where dismantling the primary circuit would be difficult, costly or disruptive.
Typical Applications
- Retrofit energy-metering installations.
- High-current industrial switchboards.
- Electrical distribution and busbar systems.
- Power quality and energy monitoring equipment.
- Digital multimeters and network analysers.
- Current indication and monitoring systems.
- Protection relay installations.
- Commercial buildings, infrastructure and manufacturing facilities.
Technical Specifications
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| Rated Burden (VA) | 20 VA | |
|---|---|---|
| Device Type | Split-core CT | |
| Rated Primary Current (A) | 4000 A | |
| Secondary Current / Output | 5 A | |
| Current | 5 A | |
| Manufacturer | Lovato Electric | |
| Series | DM | |
| Model | DM4TA4000 | |
| Product type | Split-core current transformer | |
| Primary current | 4000 A | |
| Secondary current | 5 A | |
| Transformation ratio | 4000/5 A | |
| Operating frequency | 50/60 Hz | |
| Accuracy class 0.5 burden | 20 VA | |
| Accuracy class 1 burden | 25 VA | |
| Accuracy limiting factor | FS 5 | |
| Overload withstand | 120% of rated primary current | |
| Rated insulation voltage | 720 V AC | |
| Rated short-time thermal current | 40 to 60 × Ipn for 1 second | |
| Rated dynamic current | 2.5 × Ith | |
| Internal opening | 80 × 160 mm | |
| Secondary connection | Screw terminals | |
| Fixing method | Screw fixing | |
| Construction | Split core | |
| Dimensions (H × W × D) | Approximately 245 × 184 × 68 mm | |
| Net weight | Approximately 3.76 kg | |
| EAN | 8013975187319 | |
| Applicable standards | IEC/EN current transformer standards | |
| HS Code | 85389091 |
Frequently Asked Questions
What is the Lovato DM4TA4000 used for?
The Lovato DM4TA4000 converts high primary currents into a proportional 5 A secondary signal for energy meters, network analysers, ammeters and electrical protection equipment.
What is the current ratio of the DM4TA4000?
The transformer has a current transformation ratio of 4000/5 A, meaning that a 4000 A primary current produces a 5 A secondary output.
Why use a split-core current transformer?
A split-core current transformer can be opened and installed around an existing conductor or busbar without disconnecting the primary circuit, helping simplify retrofit and maintenance work.
What is the internal opening size?
The DM4TA4000 has an 80 × 160 mm internal opening suitable for large conductors and busbar assemblies.
What accuracy and burden ratings does the transformer provide?
The DM4TA4000 provides 20 VA at accuracy class 0.5 and 25 VA at accuracy class 1.
Trusted for Industrial Energy Measurement
Lovato Electric split-core current transformers are widely used by panel builders, electrical contractors and industrial engineers for dependable current measurement, convenient retrofit installation and effective energy monitoring.
