Lovato DM1TMA0100 compact prewired split-core current transformer with a 100/5 A transformation ratio, 24 x 24 mm opening, class 1 accuracy and 2 m connection cable.
£118.30
The Lovato DM1TMA0100 is a compact, prewired split-core current transformer designed for reliable current measurement in electrical distribution, energy monitoring and industrial automation systems. With a 100/5 A transformation ratio, it converts a primary current of up to 100 A into a standard 5 A secondary signal for compatible ammeters, energy meters and multifunction measuring instruments.
Its split-core construction allows the transformer to be opened and installed around an existing conductor without disconnecting or rerouting the primary cable. This makes the DM1TMA0100 particularly suitable for retrofit metering projects, switchboard upgrades and applications where reducing installation time and electrical downtime is important.
The compact housing incorporates a 24 × 24 mm internal opening and is supplied with a 2 m prewired connection cable for straightforward integration. With class 1 measurement accuracy and a rated secondary output of 1.2 VA, the transformer provides dependable performance for monitoring loads in commercial and industrial electrical systems.
A current transformer reduces a high primary current to a proportional secondary current that can be safely measured by compatible instrumentation. The Lovato DM1TMA0100 converts a primary current of up to 100 A into a standard 5 A secondary output, enabling meters and monitoring devices to measure electrical loads without being connected directly to the high-current conductor.
The hinged split-core arrangement is especially useful when adding energy monitoring to an operational electrical system. The transformer can be opened, positioned around the existing conductor and secured in place without removing the cable. Its compact dimensions, prewired connection and snap-mounting design help simplify installation inside space-restricted switchboards and control panels.
| Current | 5 A |
|---|---|
| Manufacturer | Lovato Electric |
| Series | DM1TMA |
| Model | DM1TMA0100 |
| Product type | Compact prewired split-core current transformer |
| Primary current | 100 A |
| Secondary current | 5 A |
| Transformation ratio | 100/5 A |
| Internal opening | 24 × 24 mm |
| Rated secondary apparent power | 1.2 VA |
| Accuracy class | Class 1 |
| Overcurrent limiting factor | FS5 |
| Operating frequency | 50/60 Hz |
| Secondary connection | Prewired cable |
| Cable length | 2 m |
| Mounting method | Snap mounting |
| Approximate dimensions | 66.5 × 45.5 × 34.5 mm |
| Operating temperature | -25°C to +50°C |
| Conformity | IEC/EN/BS 61869-1 and IEC/EN/BS 61869-2 |
| Certification | EAC |
| Product weight | approx. 260 g |
| EAN | 8013975219003 |
| HS Code | 85043180 |
The DM1TMA0100 is used to measure electrical currents in distribution boards, machinery panels and energy-monitoring systems. It converts a primary current of up to 100 A into a standard 5 A secondary output.
The current transformer has a 100/5 A transformation ratio, meaning that a nominal 100 A primary current corresponds to a 5 A secondary current.
Yes. Its split-core construction allows the transformer to be opened and fitted around an existing conductor without disconnecting or rerouting the primary cable.
The transformer has a compact 24 × 24 mm internal opening for accommodating compatible cables or busbars.
Yes. The transformer is prewired and supplied with a 2 m secondary connection cable, helping simplify installation and connection to compatible measuring equipment.
Lovato Electric current transformers are used by panel builders, electrical contractors and automation engineers to provide reliable current measurement, straightforward installation and dependable integration with modern energy-monitoring equipment.
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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...