Current Transformer Expertise, Engineered Since 1993

Xiamen ZTC Technology Co., Ltd. (Zentar®) is a specialist manufacturer of current transformers and magnetic components for electrical safety and power measurement. 

Since 1993, we have combined magnetic-core technology, precision manufacturing and application engineering to deliver reliable standard and customized current transformers solutions for EV charging, GFCI/RCD protection, energy monitoring, smart metering, circuit protection and industrial applications worldwide.

Operating from Xiamen, China, ZTC employs more than 400 people and operates a 40,000 m² manufacturing facility equipped with automated winding lines, precision testing equipment and digital production-management systems. Our annual production capacity exceeds 50 million magnetic components and 5 million electrical-safety products, enabling us to support both demanding development projects and stable volume production.

Our R&D team, led by experienced technical specialists and more than 20 senior engineers, works closely with customers from requirement analysis and magnetic design through prototype validation and mass-production transfer. Backed by ISO 9001 and IATF 16949 quality systems, strict process control and continuous investment in automation, Zentar helps customers develop and launch current-sensing solutions with the accuracy, safety, consistency and delivery reliability their applications require.

Our manufacturing facilities combine specialized production equipment, automated winding systems and experienced technical teams. Every stage is managed through standardized processes to support stable quality, scalable capacity and dependable delivery for global customers.

Our integrated manufacturing process covers magnetic-core preparation, controlled annealing, precision winding, assembly, encapsulation and electrical testing. Control over these critical processes enables us to maintain consistent magnetic performance, product reliability and production efficiency.

ZTC offers a comprehensive portfolio of current transformers and magnetic components for electrical safety, energy metering, EV charging and industrial applications. Our engineering team supports application-specific development—from requirement analysis and magnetic design to prototype validation and mass production.

Quality Systems for Global Markets

ZTC operates under ISO 9001, ISO 14001 and IATF 16949 management systems. Controlled processes, traceability, systematic testing and continuous improvement support consistent manufacturing quality. Selected product models are available with applicable UL, CE and ETL compliance; certification scope varies by product and target market.

Innovation That Builds Better Solutions

With more than 100 patents and participation in national standards development, ZTC continues to invest in magnetic materials, automated manufacturing, testing capabilities and application-specific product development—turning customer requirements into reliable, production-ready current transformer solutions.