Lovato DM33T1000 is a solid-core 1000/5 A current transformer with a 44 mm cable aperture, Class 0.5 accuracy at 5 VA and compatibility with 51 × 41 mm and 61 × 31 mm busbars for high-current electrical measurement.
£39.56
The Lovato DM33T1000 is a solid-core current transformer designed to convert a primary current of 1000 A into a standard 5 A secondary output for compatible electrical meters, power analysers and energy-monitoring equipment. Its large through-hole construction accommodates cables up to Ø44 mm and is also suitable for specified rectangular busbars.
Designed for accurate AC current measurement, the DM33T1000 provides Class 0.5 accuracy at 5 VA and Class 1 accuracy at 15 VA. It operates across 50–60 Hz, withstands continuous current up to 120% of its rated primary value and has a rated insulation voltage of 720 V.
The DM33T1000 accommodates 51 × 41 mm and 61 × 31 mm busbars as well as suitable cables through its Ø44 mm opening. Screw secondary terminals and support for DIN rail or screw fixing make it a practical choice for industrial switchboards, distribution panels and high-current energy-monitoring installations.
A current transformer reduces a high primary current to a proportional secondary current that can be measured by compatible instrumentation. The Lovato DM33T1000 converts a nominal 1000 A primary current into a standard 5 A secondary signal, allowing suitable ammeters, multifunction meters, energy meters and power analysers to monitor high-current electrical circuits without carrying the full primary current through the measuring instrument.
The large Ø44 mm cable opening and compatibility with 51 × 41 mm and 61 × 31 mm busbars make the DM33T1000 well suited to substantial electrical distribution systems. When installed around a busbar, the busbar should be positioned centrally within the transformer opening to support correct installation and measurement performance.
| Manufacturer | Lovato Electric |
|---|---|
| Series | DM33T |
| Model | DM33T1000 |
| Product type | Current transformer |
| CT type | Solid-core / through-hole |
| Primary current Ipn | 1000 A |
| Secondary output current | 5 A |
| Transformation ratio | 1000/5 A |
| Cable aperture | Ø44 mm |
| Compatible busbars | 51 × 41 mm, 61 × 31 mm |
| Operational frequency | 50–60 Hz |
| Continuous overload withstand | 120% of Ipn |
| Class 0.5 burden | 5 VA |
| Class 1 burden | 15 VA |
| Rated insulation voltage Ui | 720 V |
| IEC short-time thermal current | 40–60 × Ith for 1 s |
| IEC dynamic current | 2.5 × Ith |
| Insulation | Dry type, Class E |
| Secondary 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 width | 95 mm |
| Overall height | 109 mm |
| Weight | 441 g |
| Certifications | CE, UKCA, EAC |
| Conformity | IEC/EN/BS 61869-1, IEC/EN/BS 61869-2 |
| EAN | 8013975300626 |
| HS code | 85043180 |
The DM33T1000 is a solid-core current transformer designed to convert a primary current of 1000 A into a proportional 5 A secondary current for compatible electrical meters, power analysers and energy-monitoring equipment.
The DM33T1000 has a transformation ratio of 1000/5 A, meaning its nominal 1000 A primary current corresponds to a 5 A secondary output.
The Lovato DM33T1000 is designed for cables up to Ø44 mm, providing a large opening for high-current electrical conductors.
The DM33T1000 is designed for 51 × 41 mm and 61 × 31 mm busbars. The busbar should be positioned centrally within the current transformer opening during installation.
The transformer provides Class 0.5 accuracy with a 5 VA burden and Class 1 accuracy with a 15 VA burden.
The Lovato DM33T1000 is designed for AC electrical systems operating between 50 and 60 Hz.
The DM33T1000 supports DIN rail or screw fixing and uses screw terminals for its secondary electrical connections.
The Lovato DM33T1000 has a rated insulation voltage of 720 V and uses Class E dry insulation.
The DM33T1000 conforms to IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2 and carries CE, UKCA and EAC certifications.
Lovato Electric current transformers provide dependable measurement solutions for panel builders, electrical engineers and energy-management professionals, combining standard 5 A secondary outputs with practical cable and busbar installation for integration into industrial metering and power-analysis systems.
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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...