Why Cotenele?

Innovation and Technology
Advanced R&D and patented solutions.
Quality
Assurance
ISO9001, ISO14001, ISO45001 certified products.
Global
Reach
Supplying clients in China and international markets.
Eco-Friendly Solutions
Sustainable switchgear for a green future.
Professional Support
Expert engineering and after-sales services.

Certifications and Quality

Certified for Quality, Safety, and Environment

ISO9001 Quality Management
ISO14001 Environmental Management
ISO45001 Occupational Health & Safety
National testing reports for GIS, AIS, RMU, and vacuum breakers
Certifications and Quality
What We Do

What We Do

We focus on research, development, and manufacturing of 3.6kV-40.5kV switchgear and internal core components, including:

  1. 1

    LV and MV Switchgears

  2. 2

    Ring Main Units

  3. 3

    Power Transformers

  4. 4

    Prefabricated substations

  5. 5

    New Energy Storage

As a professional power equipment manufacturer in China, we serve industries such as power generation, railways, petrochemical, municipal infrastructure, renewable energy, and industrial plants, providing reliable solutions from design to delivery.

About Us

Cotenele International Trade (Wenzhou) Co., Ltd.

Cotenele International Trade (Wenzhou) Co., Ltd. is a professional China-based manufacturer and exporter of power transmission equipment, dedicated to providing reliable medium and high voltage solutions for global industrial applications. The company has a self owned factory covering an area of over 30000 square meters, is committed to the prosperous development of China's power industry, serving integrated power supply modes of medium voltage, high voltage, and complete sets; Focusing on the research and production of core components for 12kV-40.5kV switchgears, including Gas-insulated Switchgears (GIS), Environmental-friendly Switchgears, and Air-insulated Switchgears. The company’s comprehensive product portfolio also covers Low-voltage and Medium-voltage Switchgears, Ring Main Units (RMUs), Prefabricated Substations, Power Transformers, Load Break Switches, Circuit Breakers, and Disconnectors. These products are suitable for industries such as power, railway, petrochemical, subway, municipal construction, military, steel, coal, etc.

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China Switchgear Factory
Switchgear
Switchgear

Switchgear is one of Cotenele’s core electrical distribution products. Our product range includes low voltage switchgear, medium voltage switchgear, and ring main units (RMU), widely used in power generation, transmission, and distribution systems.

Ring Main Unit Components
Ring Main Unit Components
Ring Main Unit components are the essential functional units that make up a complete RMU system. Their performance directly determines the safety, reliability, and stability of a medium-voltage power distribution network.
Ring Main Unit
Ring Main Unit
A Ring Main Unit is a type of medium-voltage switchgear used in power distribution networks. It is a compact, factory-assembled, metal-enclosed set of switchgear components (such as load-break switches, fuses, and busbars), typically applied at rated voltage levels from 10 kV to 40.5 kV.
Cotenele International Trade (Wenzhou) Co., Ltd.

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News

Stay updated with Cotenele latest switchgear innovations, industry trends and power distribution project news from a trusted China manufacturer.

Power Transformers: Core Components for Voltage Conversion and Energy Transfer

Power Transformers: Core Components for Voltage Conversion and Energy Transfer

Power transformers are fundamental equipment in AC power systems for voltage conversion, energy transfer, and electrical isolation. Through electromagnetic induction, a transformer converts electrical energy from one voltage level to another at the same frequency, meeting requirements for generation step-up, long-distance transmission, regional distribution, and end-user utilization.

Medium-Voltage Switchgear: A Critical Hub in Power Distribution Networks

Medium-Voltage Switchgear: A Critical Hub in Power Distribution Networks

Medium-voltage switchgear plays an indispensable role in modern power infrastructure. Serving as the control node between power generation, transmission, and end-user consumption, this equipment is responsible for closing and opening normal load currents while automatically interrupting fault currents under short-circuit conditions, thereby protecting connected transformers, lines, and generators.