DM3TA0500 – SPLIT C/TRANSFORMER 500/5A 80X120MM

Why Choose the Lovato DM3TA0500 Split-Core Current Transformer?

The Lovato DM3TA0500 is a robust split-core current transformer designed for accurate 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 DM3TA0500 particularly suitable for retrofit metering projects, power-monitoring upgrades and established electrical installations where reducing modification work and operational disruption is important.

With a large 80 × 120 mm internal opening, the DM3TA0500 accommodates substantial cables and rectangular busbars commonly used in high-current distribution equipment. It operates at 50–60 Hz and provides a rated burden of 4 VA at accuracy class 1, supporting dependable current measurement in demanding commercial and industrial environments.

Key Advantages

• Split-core construction simplifies installation around existing conductors and busbars.
• 500/5 A transformation ratio for standard industrial metering equipment.
• Large 80 × 120 mm internal opening accommodates substantial conductors.
• 4 VA burden at accuracy class 1 for dependable current monitoring.
• Suitable for retrofit metering, energy management and power-monitoring upgrades.
• Robust construction supports reliable operation in industrial electrical panels.

Key Features

• Lovato DM3TA series split-core current transformer.
• 500 A rated primary current.
• 5 A rated secondary current.
• 80 × 120 mm internal opening.
• 4 VA rated burden at accuracy class 1.
• 50–60 Hz operational frequency.
• 120% continuous overload withstand.
• 720 V rated insulation voltage.
• Dry insulation system with class E insulation.
• Designed for cables and rectangular busbars in high-current installations.

Reliable Current Measurement for Retrofit 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 DM3TA0500 converts a primary current of up to 500 A into a standard 5 A secondary signal, enabling meters and monitoring equipment to measure electrical loads without being connected directly to the high-current circuit.

The split-core design is particularly valuable when adding metering equipment to an existing installation. Once the electrical system has been safely isolated, the transformer can be opened, positioned around the cable or busbar and securely closed without removing the primary conductor. This helps reduce installation labour and panel modifications while supporting effective energy management and electrical system analysis.

Typical Applications

• Industrial switchboards and power-distribution panels.
• Energy meters and multifunction measuring instruments.
• Power analysers and electrical monitoring systems.
• Building and facility energy-management systems.
• Electrical load and maximum-demand monitoring.
• Industrial machinery and automation panels.
• Commercial power-distribution installations.
• Retrofit metering and energy-efficiency projects.