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DM1TA0400 – SPLIT C/TRANSFORMER 400/5A 50X80MM
Lovato DM1TA0400 split-core current transformer with a 400/5 A transformation ratio, 52 × 80 mm opening, Class 0.5 accuracy at 1.5 VA and Class 1 accuracy at 3 VA for electrical metering and energy monitoring.
£103.18
Why Choose the Lovato DM1TA0400 Split-Core Current Transformer?
The Lovato DM1TA0400 is a high-performance split-core current transformer (CT) designed for accurate current measurement in industrial and commercial electrical systems. Featuring a 400/5 A transformation ratio, it converts high primary currents into a standard 5 A secondary output suitable for multifunction power meters, energy analysers and protection devices.
Its split-core design allows installation around an existing cable or busbar without disconnecting the primary conductor, making it ideal for retrofit energy monitoring projects, electrical upgrades and maintenance work where downtime must be minimised.
With a large 52 × 80 mm internal window, Class 0.5 accuracy at 1.5 VA and Class 1 accuracy at 3 VA, the DM1TA0400 delivers dependable performance for switchboards, distribution systems and industrial automation installations. It is manufactured to IEC standards and offers robust long-term reliability.
Key Advantages
- Accurate 400/5 A current transformation ratio.
- Split-core construction allows installation without disconnecting conductors.
- Large 52 × 80 mm aperture for cables and busbars.
- Class 0.5 accuracy at 1.5 VA for precision metering.
- Class 1 accuracy at 3 VA for general measurement applications.
- Standard 5 A secondary output compatible with industrial measuring equipment.
Key Features
- Lovato DM series split-core current transformer.
- 400 A rated primary current.
- 5 A rated secondary current.
- 52 × 80 mm split-core opening.
- Class 0.5 accuracy at 1.5 VA.
- Class 1 accuracy at 3 VA.
- Suitable for 50/60 Hz electrical systems.
- 720 V rated insulation voltage.
- 120% continuous overload capability.
- Screw terminal secondary connections.
- Robust screw fixing installation.
Ideal for Retrofit Energy Monitoring
The split-core construction enables the Lovato DM1TA0400 to be installed around existing conductors without disconnecting them, significantly reducing installation time and avoiding unnecessary power interruptions. This makes it particularly valuable when upgrading existing switchboards with energy monitoring equipment.
Its 5 A secondary output is compatible with a wide range of multifunction meters and power analysers, while the generous aperture accommodates larger conductors and busbars commonly found in industrial electrical installations.
Typical Applications
- Industrial switchboards.
- Electrical distribution panels.
- Energy monitoring systems.
- Multifunction power meters.
- Power quality analysers.
- Building energy management systems.
- Commercial electrical installations.
- Industrial automation systems.
Technical Specifications
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| Mounting Type | Panel / base | |
|---|---|---|
| Device Type | Split-core CT | |
| Rated Primary Current (A) | 400 A | |
| Secondary Current / Output | 5 A | |
| Accuracy Class | Class 0.5 | |
| Current | 5 A | |
| Manufacturer | Lovato Electric | |
| Series | DM | |
| Model | DM1TA0400 | |
| Product type | Split-core current transformer | |
| Primary current | 400 A | |
| Secondary current | 5 A | |
| Transformation ratio | 400/5 A | |
| Accuracy class | Class 0.5 at 1.5 VA / Class 1 at 3 VA | |
| Rated frequency | 50 / 60 Hz | |
| Internal opening | 52 × 80 mm | |
| Core type | Split core | |
| Rated insulation voltage | 720 V | |
| Continuous overload | 120% of rated primary current | |
| Short-time thermal withstand | 40 to 60 × rated current for 1 second | |
| Dynamic withstand | 2.5 × Ith | |
| Insulation class | Class E | |
| Connection type | Screw terminals | |
| Mounting | Screw fixing | |
| Protection rating | IP30 | |
| Operating temperature | -25°C to +50°C | |
| Storage temperature | -40°C to +80°C | |
| Relative humidity | 90% | |
| Weight | Approximately 900 g | |
| Conformity | IEC/EN 60044-1 | |
| Certification | EAC | |
| HS Code | 85389091 |
Frequently Asked Questions
What is the Lovato DM1TA0400 used for?
The DM1TA0400 converts a primary current of up to 400 A into a standard 5 A secondary output for electrical metering, monitoring and protection equipment.
Can the DM1TA0400 be installed without disconnecting the cable?
Yes. Its split-core design allows installation around an existing conductor without removing cable terminations.
What size conductor can the transformer accommodate?
The transformer features a 52 × 80 mm internal opening, making it suitable for large cables and busbars.
What accuracy does the DM1TA0400 provide?
It offers Class 0.5 accuracy at 1.5 VA and Class 1 accuracy at 3 VA, making it suitable for both precision metering and general monitoring.
Which instruments are compatible with this transformer?
The DM1TA0400 is designed for equipment with a standard 5 A current transformer input, including multifunction power meters, energy analysers and protection relays.
Trusted for Industrial Current Measurement
Lovato DM split-core current transformers are trusted by electrical engineers, panel builders and energy management specialists for accurate current measurement, simple retrofit installation and dependable long-term performance.
