cnzentar.com | Leading Current Transformer Manufacturer in China

About Xiamen ZTC Technology

A trusted leader in current transformer manufacturing with over three decades of innovation and excellence.

Our Story

Xiamen ZTC Technology Co., Ltd (Zentar®), founded in 1993, is located in Xiamen, a harbor city in Southeast China. With over 30 years of experience, we are a leading manufacturer of current transformers for electrical safety and electric measuring industries.

Our 20,000 square meter facility employs over 250 skilled workers, producing more than 2,000 customized products annually. As an innovation-oriented enterprise and ISO9001, IATF16949 certified factory, we utilize automated equipment to meet the high-quality standards of the automotive industry.

We are committed to advanced technologies, R&D, and industry-university-research collaboration, providing high-quality current transformers and expert support for EV charging modules, GFCI, RCD, and wireless energy monitors.

Our Hot Selling Products

High-performance current sensors engineered for precision, safety, and reliability.

Split Core Current Sensor

Widely used for energy monitor devices. CE & ETL certified. Easy installation with compact design.

Non-invasive measurement
CE & ETL Certified
Ideal for retrofitting

Rogowski Coils

Up to kA high current range metering in distribution systems. Flexible and lightweight design.

High current range
Flexible installation
No saturation risk

Zero Phase Current Sensor

Used in RCD, GFCI, and EV charging systems for electrical safety and leakage detection.

High sensitivity
Compact design
Stable performance

Precision Current Sensor

Used in high-accuracy ammeters and measurement instruments. Low phase error and high linearity.

High accuracy (±0.5%)
Low phase shift
Stable long-term performance

GFCI Current Transformer

Tailor-made for GFCI devices in North America. Ensures fast trip response and safety compliance.

UL Listed options
5mA sensitivity
Customizable dimensions

Type B Current Transformer

Designed for EV charging stations. Detects AC, pulsating DC, and smooth DC leakage currents.

DC immunity
EV charging compliant
High reliability

DC Immune Current Transformer

Resists DC offset and saturation. Ideal for modern power systems with DC components.

No core saturation
Stable under DC bias
Long service life

Voltage Transformer

Precision voltage sensing for metering and protection systems. High insulation and accuracy.

High insulation strength
Accurate voltage ratio
Low power consumption

View Full Product Guide

Why Choose ZTC Technology?

Over three decades of expertise, innovation, and customer commitment.

30+

Years In Service

80+

Patents

2000+

Customized Products

10+

Awards Received

Our Certifications

ISO 9001:2015
ISO 14001:2015
IATF 16949:2016
GB/T 29490-2013
UL, ETL, CE, UKCA Certified
RoHS & REACH Compliance

What We Offer

OEM/ODM with low NRE & tooling cost
25+ years R&D experience
Resilient supply chain
Located in harbor-airport city
3D moldings & samples
Factory direct pricing

What Our Clients Say

Trusted by professionals worldwide.

"As a procurement manager in an energy management company, we value a supplier that provides a steady supply chain and good quality current transformer. Honestly, cooperating with Xiamen ZTC Technology is a wise choice."

Tom Sendler

Technician

"When I have something that needs to be assisted in projects, I can get a fast technical response from Xiamen ZTC Technology every time. Good after-sales service from their team."

Grant Gabriel

Procurement Manager

"ZTC series of AC Split core current transformers are simple to use, compact split-core design which is easily installed for metering applications. I love it."

Dave Jan

Electrician

"ZTC series of current transformers for RCD EV charging modules are compact design, steady quality performance which ensure high pass rate for volume production."

Sam Tong

PCB Assembly Operator

Frequently Asked Questions

Everything you need to know about our products and services.

Can you provide samples for testing?

Yes, a few free samples for testing are available. Courier charges are collected by the receiver.

Can you provide tailor-made current transformers?

Yes. If you share the required electrical parameters and dimensions, we can explore existing options or create a custom solution through tooling.

Could we start from a small order?

Yes, we accept trial orders of small quantities. We understand initial demand may be low but expect growth as your project scales.

What is your payment terms?

We prefer easy business—no deposit required before production. Payment is due before shipping.

Are your current transformers tested before delivery?

Yes, we perform 100% outgoing inspection on critical parameters to ensure stable and reliable quality.

Talk To ZTC Now!

To discuss your need of current transformers for electrical safety applications – EV Charging Protection Modules and more.

Get In Touch

We would be happy to assist you with quotes, technical support, or custom design solutions.

Mob: +86-18965819883

Tel: +86-592-7766706

Email: sales@cnzentar.com

Address: No.18 XiangMing Rd, XiangAn, Xiamen, Fujian, China

Hours: Monday - Friday: 8AM - 6PM

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The Leading Current Transformer Manufacturer In China