Green empowerment, sharing a better life
——Juhonkia Electric
Environmentally friendly and
efficient, intelligent monitoring
——Inflatable cabinet, a smart choice for future power grids
——Small stature, great wisdom
Ring main unit
Bringing agility and intelligence to
urban power grids
——Intelligent integration, security upgrade
Pole mounted circuit breaker
Quality control for a safe and secure future
One-stop power solution
From high voltage to low voltage, making energy management easier
Our Advantage
Zhejiang Juhonkia Intelligent Electric Co.,Ltd
Has a CNAS accredited laboratory
Has a CNAS accredited laboratory
It has a CNAS accredited laboratory, a smart quality control brain, and a shared laboratory...
R&D institutions and corporate research institutes
R&D institutions and corporate research institutes
It has multiple specialized R&D institutions and corporate research institutes, and its products have independent...
Multiple product categories, complete specifications, and intelligent equipment
Multiple product categories, complete specifications, and intelligent equipment
Leading the domestic leading level, digital workshops, intelligent factories...
There is always a ring main unit suitable for you,
and we can provide customized services according to your special requirements.
It has a CNAS accredited laboratory, a smart quality control brain, and a shared laboratory...
OEM/ODM
Hot Products

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Our Products

JSR6-12/24 SF6 gas-insulated metal-enclosed ring main unit
JSR6-40.5 SF6 gas-insulated metal-enclosed ring main unit
GSR6-27.5 SF6 free gas-insulated metal-enclosed switchgear (C-GIS)
GSR6-12 SF6 free gas-insulated metal-enclosed switchgear (C-GIS)
Our Products
Applications

03

Case presentation

Hangzhou Metro
Wind power
PV
Airport
Three Gorges of the Yangtze River
News Center

04

News information

2026/08/26 00:02:43

What Documents Should an Authorized Switchgear Supplier Provide?
Buying switchgear without the right paperwork can delay a project, fail an inspection, or create a serious safety risk. A buyer should review switchgear supplier authorization documents, learn how to verify an authorized switchgear supplier, and confirm that an authorized medium-voltage switchgear supplier can support the equipment after delivery. This guide explains the documents to request, how
What Information Is Needed to Customize a Prefabricated Substation?

2026/08/26 00:02:45

What Information Is Needed to Customize a Prefabricated Substation?
What Information Is Needed to Customize a Prefabricated Substation? A customer normally needs to provide the electrical ratings, site conditions, load characteristics, protection requirements, enclosure details, and applicable standards before a Prefabricated Substation Manufacturer can prepare an accurate design. This information allows Juhonkia to engineer a factory-assembled substation that
What Specifications Should Buyers Provide When Ordering a Custom Ring Main Unit?

2026/08/26 00:02:47

What Specifications Should Buyers Provide When Ordering a Custom Ring Main Unit?
When ordering from a Ring Main Unit Manufacturer, buyers must provide more than voltage and current ratings. A custom RMU design depends on the network layout, fault level, enclosure location, protection method, cable size, and operating environment. The right information helps a custom ring main unit manufacturer select safe components, meet IEC requirements, and reduce changes during
SF6, SF6-Free or Air-Insulated RMU: Which One Should You Choose?

2026/07/28 11:37:06

SF6, SF6-Free or Air-Insulated RMU: Which One Should You Choose?
Selecting a ring main unit is no longer only a question of rated voltage, current and short-circuit capacity. Utilities, EPC contractors and industrial project owners must also consider the insulation medium, installation footprint, environmental regulations, maintenance strategy and expected service life.

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