Low Voltage Current Transformer Supplier

Willmall Low Voltage Current Transformer solutions support metering and protection circuits with window-, ring-, and open-type structures, insulated flame-retardant housings, and controlled temperature rise.

0.66kv 2500/5A CT Low Voltage Current Transformers for Protecting Electrical Energy

0.66kV 2500/5A Low Voltage Current Transformer (CT) for Electrical Energy Protection, High-Accuracy Measuring CT, IEC-Compliant, Busbar/Cable Mounting.

Split Core CT Current Transformer 5p10 Zero Open Loop High Burden Current Transformer for Reconstruct Power System

Split Core CT Current Transformer 5P10 Zero Open Loop High Burden, 100–5000A, 5A/1A Secondary, 0.72/3kV Rated, IEC44-1 Compliant.

Wholesale CT 0.5 15.0va 2000/5 Square Plastic Box Current Transformer for Energy Meter

Wholesale CT 0.5 Class 15VA 2000/5 Square Plastic Box Low Voltage Current Transformer for Energy Metering, 0.72/3kV Rated, IEC44-1 Compliant

Current Transformer 5p10 Zero High Output Zero Phase High Metering Current Transformer for AC Meter CT Current

5P10 Zero Phase High Output Current Transformer for AC Metering, 100–5000A, 5A/1A Secondary, 0.72/3kV Rated, IEC44-1 Compliant.

Metering Current Transformer Low Voltage CT 100/100mA Low Voltage High Quality Current Transformer for Electricity Meter

Metering Low Voltage Current Transformer CT 100/100mA, High-Quality CT for Electricity Meters, 0.72/3kV Rated, IEC44-1 Compliant, Accurate Measurement.

Open Type 250A/1A Split Core Current Transformer CT Factory Supplier

Open Type 250A/1A Split Core Current Transformer (CT), Low Voltage Clamp-On Design, 0.72/3kV Rated, IEC44-1 Compliant, Factory Supplier.

5A Black Red Low Voltage CT Metering Current Transformer for Electricity Meter

5A Black/Red Low Voltage Current Transformer (CT) for Electricity Metering, 100–5000A Primary, 0.72/3kV Rated, IEC44-1 Compliant, Accurate Metering.

Lzjm1-0.5 Low Voltage Current Transformer 3000/5A Accuracy Class 0.5 Low Voltage Split Core Current Instrument Transformer

LZJM1-0.5 Low Voltage Split Core Current Transformer 3000/5A, Accuracy Class 0.5, 0.72/3kV Rated, IEC44-1 Compliant, Clamp-On Installation.

0.66kv Current Transformer CT Low Voltage 0.5 Grade Current Ratio 1200/5A

0.66kV Low Voltage Current Transformer CT 1200/5A, Accuracy Class 0.5, Split Core Clamp-On Design, IEC44-1 Compliant, Easy Installation.

100/5A CT Indoor Low Voltage Current Transformer

100/5A Indoor Low Voltage Current Transformer (CT), Split Core Design, 0.72/3kV Rated, IEC44-1 Compliant, Clamp-On Installation.

Bh-0.66kv 2500/5A Current Transformer CT Low Voltage Current Transformer

BH-0.66kV 2500/5A Low Voltage Current Transformer (CT), Split Core Clamp-On Design, Easy Installation, Reliable Measurement for Power Systems.

Dp Series Dp-23 Measuring and Protection Instrument Low Voltage Current Transformer

DP-23 Split Core Low Voltage Measuring & Protection Current Transformer, Clamp-On Design, No Cable Disconnection, Easy Installation for Switchgear and Power Systems.

Wilmall Low Voltage Current Transformer Manufacturer

Willmall provides Low Voltage Current Transformer supply with multiple mounting structures and open-type quick installation options for meter, data acquisition, and protection device integration.

Window-type, ring-type, and open-type structures available for different installation constraints
Open-type Low Voltage Current Transformer design supports quick installation on existing conductors
Interface compatibility suited for electricity meters, data acquisition modules, and protection devices
Flame-retardant insulated housing specified for electrical insulation requirements
Temperature rise control defined to support thermal stability in continuous operation

What is a Low Voltage Current Transformer?

A Low Voltage Current Transformer is an instrument transformer used to scale primary current in a low-voltage circuit to a lower, measurable secondary current for metering and protection equipment.

How does a Low Voltage Current Transformer work in a metering circuit?

A Low Voltage Current Transformer couples magnetically to the primary conductor and provides a proportional secondary current that electricity meters or data acquisition modules can measure to calculate load current and related electrical parameters.

Which Low Voltage Current Transformer structure should be selected: window-type, ring-type, or open-type?

Selection depends on installation constraints. Window-type and ring-type structures are typically chosen when the conductor can be routed through the transformer during assembly, while open-type structures are used when quick installation on an existing conductor is required.

How is an open-type Low Voltage Current Transformer installed?

An open-type Low Voltage Current Transformer is positioned around the conductor using the opening mechanism and then secured according to the installation method used in the panel. Wiring is then connected to the intended meter, data acquisition module, or protection device input.

When is a Low Voltage Current Transformer used with protection devices instead of only meters?

A Low Voltage Current Transformer is used with protection devices when the secondary current signal is required for protection functions such as monitoring, tripping logic, or current-based protection schemes within protection relays or related protective equipment.

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Electrical Solutions for Diverse Applications

Our electrical products are designed for reliable power distribution, protection, and control across a wide range of application environments.

Solar & Renewable Energy Systems

Used in photovoltaic systems for power distribution, protection, and stable system operation.

Industrial Manufacturing & Automation

Applied in machinery, control panels, and automation systems to support continuous industrial operation.

Commercial & Residential Buildings

Suitable for building power distribution and protection, meeting safety and installation requirements.

Marine & Offshore Applications

Designed for use in marine and offshore environments with humidity, vibration, and corrosion exposure.

Who We Are

Industrial Electrical Components Manufacturer

WILMALL is a professional electrical equipment manufacturer specializing in industrial and power distribution components for solar energy, automation systems, residential installations, marine applications, and commercial infrastructure.

With 8+ years of industry expertise, we have successfully supported 500+ global clients across 30+ countries and regions, delivering more than 40 categories of electrical products engineered for durability, compliance, and long-term reliability.

We are certified electrical equipment experts.

We collaborate with numerous manufacturing plants in industries such as industrial manufacturing, PLC manufacturing, and new energy.

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Our portfolio includes 40+ product categories, covering cable glands, connectors, transformers, circuit breakers, and industrial control devices for multiple applications.

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WILMALL products are trusted in more than 30 countries and regions, providing factories with consistently high-quality and reliable electrical solutions.

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Why Choose WILMALL

WILMALL for Industrial Electrical Solutions

For distributors, OEMs, and project contractors, supplier selection impacts compliance, delivery timelines, and long-term reliability. WILMALL helps you reduce procurement risk, ensure certification readiness, and maintain stable supply.