Low Voltage Current Transformer

At Sell-best, you’ll discover a diverse selection of Low voltage current transformers, including split core current transformers, solid core current transformers, DC current transformers, AC current transformers, and more. Our product range encompasses a wide variety of current transformers, making it easy for you to find the perfect product based on brand, type, or specific requirements. If you can’t find what you’re searching for, please don’t hesitate to contact us, and we’ll do our utmost to provide you with the exact current transformers you need. Furthermore, we’re delighted to offer customization options for many of our industrial current transformers.

Our high-precision industrial split, solid, and flexible current transformers are made by China manufacturers or other famous brands such as Schneider, ABB, Siemens, and so on. This ensures that you can acquire top-notch CTs with exceptional value in the industry.

Sell-Best – Your Premier Current Transformer Distributor

The low voltage current transformer is designed to measure and monitor current levels, transform high currents to a standardized value, ensure accurate current measurement, and protect electrical equipment. A current transformer comprises two windings: a primary winding carrying the main current, and a secondary winding connected to measuring devices or protection circuits. It operates by inducing a proportional alternating current in the secondary winding, accurately reflecting the primary current.

Our full range of low-voltage current transformers are available in load currents, earth leakage currents, residual currents, etc. They are compatible with energy meters like submeters, protection relays such as ground-fault relays, motors and generators, cables and busbars, etc. These electrical current transformers play an important role in measurement, protection, control, and isolation.

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Comprehensive Applications of Sell-Best Current Transformer

The common current transformer applications in power systems include metering, protective relaying, energy management systems, power plants, substations, distribution networks, and industrial enterprises.
  • Power plant: used for generator output current measurement, protection, and excitation system control.
  • Substation: used for current measurement and protection of transformers, lines, and other equipment, as well as load control.
  • Distribution network: used for current measurement and protection of distribution lines and fault location.
  • Industrial enterprises: used for current measurement and protection of motors, transformers, and other equipment.


Besides, it can use in the following applications:
  • Current monitoring and control of induction cookers
  • AC/DC variable speed drive
  • Switching power supply (SMPS)
  • UPS uninterruptible power supply
  • Application on inverters
  • Battery detection
  • Elevator current detection
  • DC panel leakage detection
  • Line detection
  • Current difference detection
  • Solar power management system.
  • Cable or Busbar

Select Your Detailed Current Transformers Specification

Current transformers are indispensable measuring components in power systems. They are used to convert high voltage and large current into low voltage and small current for easy measurement and protection. Selecting and purchasing the right current transformer is crucial to ensure measurement accuracy and system safety.

Rated current 100A, 150A, 200A, 250A, 300A 400A, 600A, 700A, 800A, 1000A, 1200A, 1500A, 1800A, 2000A, 3000A, 3500A, 4000A, 6000A, etc.
Secondary current rating Usually choose 5A or 1A, depending on the load.
Accuracy class Class 0.5 or class 1 for meters, Class 0.2 or class 0.5 for protection relay
Current transformer ratio Select the appropriate ratio according to the rated current of the secondary meter or relay
Other options size, ratio, multiple taps, contacts, mounting options, and burden rating

Why Choose Sell-Best Current Transformer

Are you still worried about inaccurate current measurement and frequent equipment failures? Our current transformers are designed to solve your measurement problems! No matter which type of current transformer you need, we can provide you with the best solution!
  • Complete current transformer product line, various specifications and models to meet your diverse needs
  • High-performance current transformer, supporting multiple communication protocols
  • Adopting advanced sensor technology to ensure accurate and reliable measurement results
  • Provide professional technical support
  • Easy to install: compact structure, easy to install