LEEYD: Pioneros en automatización eléctrica, pararrayos y derivadores de CC.
LEEYD delivers reliable electrical innovation with a forward-thinking mindset—backed by decades of consistency, quality, and global trust since 1985.
To lead the future of power solutions through innovation, quality, and sustainable partnerships.
To empower industries with trusted solutions, foster lasting client value, drive team growth, and make a positive impact on society.
Our solutions are designed for effortless integration into your existing systems—reducing downtime, improving efficiency, and simplifying implementation.
We blend decades of engineering know-how with the latest advancements to deliver smarter, future-ready electrical solutions tailored to industry evolution.
With a long-standing reputation since 1985, we deliver products that exceed expectations in durability, consistency, and dependable global performance.
Since 1985, we’ve been delivering reliable, forward-thinking electrical solutions rooted in precision engineering and strict quality control.
From in-house manufacturing to collaborative product design, our approach ensures that every solution aligns with your evolving needs.
We’ve partnered with clients in over 50 countries, helping them succeed through flexible customization, on-time delivery, and global standards compliance.
With every project, we don’t just supply a product—we co-create a smarter, more stable energy future with you.
From a School Workshop to a Trusted Global Partner
In 1985, Mr. Yang founded a small factory in Jiangning District, Nanjing, producing ammeters and voltmeters for local schools. Driven by craftsmanship and precision, he turned limited resources into a full line of reliable instruments, laying the foundation for today’s LEEYD.
A New Chapter: Innovation Led by the Second Generation
In 2008, his son Luis took over and restructured the company into LEEYD Co., Ltd., elevating it from a component manufacturer to a solution provider in power automation. Luis spearheaded smart technology integration and built six specialized production sites across China. Today, LEEYD offers end-to-end services — from R&D to delivery — covering surge protection, power monitoring, and smart sensing solutions.
What Sets LEEYD Apart
✅ Over 1,000 clients served in 30+ countries
✅ More than 8,000 projects delivered across power, grid, and automation
✅ Less than ±0.5% error margin on our lightning arrester monitors
✅ Wide adoption of Hall-effect sensors in renewable & smart energy systems
Beyond Manufacturing: A Vision for Global Energy Transition
At LEEYD, we believe “Precision Engineering, Innovative Thinking” is more than a motto — it’s a roadmap for the future. We are committed to helping our partners tackle rising energy demands with scalable, reliable, and intelligent power solutions.
Founded in 1985 as the Nanjing Second Electrical Instrument Factory, LEEYD has grown into a trusted industrial power solutions provider with additional manufacturing facilities in Nanyang, Yichun, Yueqing, and Ningbo.
Backed by decades of experience, we serve global clients with dependable products and long-term collaboration support.
Core Power Protection Portfolio:
AC/DC Metal Oxide Surge Arresters (0.22kV–500kV), GIS-compatible Tank-type Arresters (35kV–500kV), DC Shunts, Hall Sensors, Surge Counter & Monitors, Meters, and Automation Accessories.
Tailored Engineering Support:
We support custom designs based on your drawings or parameters, and provide sampling, co-development, and rapid technical response.
R&D Collaboration:
We integrate seamlessly with your product development timeline, offering BOM matching, joint evaluations, and prototype iterations.
Strict Quality Control:
Products undergo rigorous in-house testing, with key models maintaining error margins within ±0.5%. Third-party certifications and full inspection reports are available.
Reliable Production Capacity:
Our annual capacity includes:
6 million metal oxide varistors
300,000 metal oxide surge arresters
4,000 GIS tank-type arresters
800,000 DC shunts & Hall sensors
300,000 counters & monitors
150,000 voltmeters & ammeters
With robust output and agile supply chains, we guarantee stable delivery.
Infrastructure: 1000kV high-voltage testing hall, raw material labs for MOA and silicone rubber.
R&D Strength: 91 sets of professional testing and development equipment.
Traceable Quality System: End-to-end inspection records and full reporting ensure supply chain transparency.
Global Certifications: ISO9001, ISO14001, OHSAS18001, KEMA, CE.
Project Experience: Installed in national grid projects including Angola (KOYO Substation), Zambia, and Iran.
Long-Term Partners: Siemens, ABB, Schneider Electric, NARI Group, China Huadian, and more.
B2B clients don’t just care about specs — they need a supplier who delivers confidence.
✅ Pre-Development: Can you co-design and support fast samples?
✅ During Procurement: Do you have stable capacity and clear lead times?
✅ Project Execution: How’s your QA? Is packaging export-ready?
✅ Post-Sale Support: If issues arise, who takes responsibility?
At LEEYD, we earn trust by answering these questions with action.
We’re not just a product vendor — we’re a strategic partner committed to helping you succeed across R&D, sourcing, and delivery.
No. 701, Tianyin Avenue, Jiangning District, Nanjing, China
+86-18913393116
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