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DM2TMA0500 – SPLIT C/TRANSFORMER 400/5A 80X80MM
Lovato DM2TMA0500 compact prewired split-core current transformer with a 500/5 A transformation ratio, 36 x 36 mm opening, 0.5 VA class 0.5 burden and 1.5 VA class 1 burden.
£121.26
Why Choose the Lovato DM2TMA0500 Compact Split-Core Current Transformer?
The Lovato DM2TMA0500 is a compact, prewired split-core current transformer designed for dependable current measurement in industrial switchboards, electrical distribution panels and energy-monitoring systems. Featuring a 500/5 A transformation ratio, it converts a primary current of up to 500 A into a standard 5 A secondary output for connection to compatible energy meters, ammeters, multifunction measuring instruments and power analysers.
Its split-core construction allows the transformer to be opened and installed around an existing cable or busbar without removing or rerouting the primary conductor. This makes the DM2TMA0500 particularly suitable for retrofit metering projects, power-monitoring upgrades and existing electrical installations where minimising modification work and operational disruption is important.
The compact housing incorporates a 36 × 36 mm internal opening and a prewired secondary connection for straightforward installation. Operating at 50/60 Hz, the transformer provides a burden of 0.5 VA at accuracy class 0.5 and 1.5 VA at accuracy class 1, supporting reliable current measurement in commercial and industrial electrical systems.
Key Advantages
- Compact split-core construction for convenient retrofit installation.
- 500/5 A transformation ratio for standard electrical measuring equipment.
- Can be fitted around an existing conductor without removing or rerouting it.
- 36 × 36 mm internal aperture for compatible cables and busbars.
- Prewired secondary connection helps simplify panel wiring.
- Class 0.5 and class 1 measurement options support dependable monitoring.
Key Features
- Lovato DM2TMA series current transformer.
- 500 A rated primary current.
- 5 A rated secondary current.
- Compact prewired split-core construction.
- 36 × 36 mm internal opening.
- 0.5 VA burden at accuracy class 0.5.
- 1.5 VA burden at accuracy class 1.
- 120% permanent overload withstand.
- 50/60 Hz operating frequency.
- 720 V rated insulation voltage.
Compact Current Measurement for Existing Installations
Current transformers provide a safe method of measuring high electrical currents by converting the primary current into a proportional secondary output for compatible instrumentation. The Lovato DM2TMA0500 converts a primary current of up to 500 A into a standard 5 A secondary signal, allowing meters and monitoring devices to measure electrical loads without being connected directly to the high-current circuit.
The split-core format is particularly useful when adding energy monitoring to an existing electrical installation. Once the circuit has been safely isolated, the transformer can be opened, positioned around the conductor and securely closed without removing the cable or busbar. Its compact size and prewired construction help simplify installation in space-restricted switchboards and control panels.
Typical Applications
- Industrial switchboards and distribution panels.
- Energy meters and multifunction measuring instruments.
- Power analysers and electrical monitoring systems.
- Building energy-management systems.
- Industrial machinery and automation panels.
- Electrical load and consumption monitoring.
- Commercial power-distribution installations.
- Retrofit metering and energy-efficiency projects.
Technical Specifications
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| Rated Burden (VA) | 0.5 VA | |
|---|---|---|
| Rated Primary Current (A) | 400 A | |
| Secondary Current / Output | 5 A | |
| Device Type | Split-core CT | |
| Current | 5 A | |
| Manufacturer | Lovato Electric | |
| Series | DM2TMA | |
| Model | DM2TMA0500 | |
| Product type | Compact prewired split-core current transformer | |
| Primary current | 500 A | |
| Secondary current | 5 A | |
| Transformation ratio | 500/5 A | |
| Internal opening | 36 × 36 mm | |
| Operating frequency | 50 / 60 Hz | |
| Permanent overload withstand | 120% of rated primary current | |
| Burden at accuracy class 0.5 | 0.5 VA | |
| Burden at accuracy class 1 | 1.5 VA | |
| Rated insulation voltage | 720 V | |
| Short-time thermal current | 40–60 × rated primary current for 1 second | |
| Rated dynamic current | 2.5 × short-time thermal current | |
| Current transformer type | Split-core | |
| Secondary connection | Prewired | |
| Product weight | approx. 460 g | |
| Package quantity | 1 | |
| Package dimensions | 120 × 100 × 50 mm | |
| EAN | 8013975219072 | |
| HS Code | 85043180 |
Frequently Asked Questions
What is the Lovato DM2TMA0500 used for?
The DM2TMA0500 is used to measure electrical currents in distribution panels, switchboards and energy-monitoring systems. It converts a primary current of up to 500 A into a standard 5 A secondary output.
What is the transformation ratio of the DM2TMA0500?
The current transformer has a 500/5 A transformation ratio, meaning that a nominal 500 A primary current corresponds to a 5 A secondary current.
Can the DM2TMA0500 be installed around an existing conductor?
Yes. Its split-core construction allows the transformer to be opened and fitted around an existing cable or busbar after the electrical circuit has been safely isolated.
What size opening does the DM2TMA0500 have?
The transformer has a 36 × 36 mm internal opening suitable for compatible cables and busbars.
What measurement performance does the DM2TMA0500 provide?
The transformer provides a burden of 0.5 VA at accuracy class 0.5 and 1.5 VA at accuracy class 1, depending on the connected secondary measuring circuit.
Trusted Current Measurement from Lovato Electric
Lovato Electric current transformers are used by panel builders, electrical contractors and industrial engineers to provide reliable current measurement, practical retrofit installation and dependable integration with modern energy-monitoring equipment.
