OEM & ODM

Your Trusted Power Distribution & Terminal Block Manufacturer

Helping electrical, infrastructure, and new-energy suppliers reduce project risks with 130+ series of high-current terminal blocks, junction boxes, and wire connectors—fully supported by CE/CQC certifications, in-house testing, and a 6-million-unit annual production capacity.

Factory-Direct Production

Explore Our Electrical Terminal & Distribution Blocks

We offer more than 2,300 product specifications covering terminal blocks, distribution blocks, junction boxes, and wire connectors. Built for demanding environments, our components deliver stable connections, accurate metering, and safe, efficient electrical installation.

Flexible Terminal Block Solutions Are Here for Industrial Applications



Since 2002, we’ve supplied everything your power-distribution projects need—from high-current terminals to meter-box distribution blocks. Mix different models in a single order and select custom packaging to match your project requirements—all delivered from one source.

Stocked items are available from just 1 piece, ideal for urgent repairs or small-batch needs.


Small-batch and mixed-model orders are supported, with flexible delivery timelines of 20–25 days.


Custom packaging options are tailored to project workflows to simplify wiring organization and on-site installation.

Your One-Stop Terminal & Distribution Block Supplier

6M+

Intelligent meter junction boxes produced yearly

2M+

High-current terminal connectors manufactured annually

100+

Countries served with terminal block solutions

2300+

Specifications covering all application needs

24-Hour Customer Care

Why Leading Electrical & Energy
Suppliers Choose HAIYAN

Built to Support Your Electrical Projects with Proven Metering and Power Connection Expertise

Fully Automatic Terminal & Tin soldering Machine

Temperature- and time-controlled heating ensures even shrinkage and rellableinsulation for dual-wall and standard heat-shrink tubes.
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Trust HAIYAN Terminal Blocks for Every Installation

1-21-1

Trusted Worldwide for Power Distribution Connections

For overseas electrical installations, Haiyan supplies terminal blocks and metering junction boxes to customers in Europe, Southeast Asia, and the Middle East—helping buyers simplify sourcing and reduce project delivery risks.
25+years

Exporting experience handling international project requirements

130+Series

One supplier covering complete connection systems

2000+ Projects

Deliveries for Power distribution, metering, and renewable energy systems

China·Haiyan Terminal Blocks Co., Ltd.

Need high-current terminals and distribution blocks?

Secure Your Electrical Connections with Haiyan Solutions

At HAIYAN, we provide 130+ product series and over 2,300 specifications, covering terminal blocks, junction boxes, distribution blocks, and wire connectors.


If you need precise metering, high-current connections, or mixed-model orders, our factory-direct production ensures fast delivery and stable quality.


Fill out the form and let our experts match the right solution to your project.

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