Protection & switching · 隔离开关
Disconnect Switch Manufacturers & Suppliers in China (2026)
4 Chinese manufacturers and suppliers of disconnect switches (隔离开关), ranked by their registration, contact and product data, plus 3 international brands that make or sell them in China. A further 3 companies are listed below with their registered names and contacts.
Ranked disconnect switch manufacturers
- 01
XD Electric 西电XD Full profile
Complete AC and DC transmission and distribution equipment.
- High-voltage switches
- Transformers
- Reactors
- Power capacitors
- Instrument transformers
- Insulators and bushings
Why it ranks here: registered legal entity on file; email and phone published; operating since 1959.
- 02
Pinggao 平高PG Full profile
Switchgear and integrated transmission and distribution equipment.
- High-voltage switchgear
- Vacuum circuit breakers
- Ring main units
- Gas-insulated transmission equipment
- Energy storage equipment
Why it ranks here: registered legal entity on file; email and phone published; operating since 1970.
- 03
Taikai 泰开TK Full profile
Transmission equipment manufacturing with EPC and maintenance services.
- High-voltage switchgear
- Circuit breakers
- Transformers
- Instrument transformers
- Surge arresters
- Mobile substations
Why it ranks here: registered legal entity on file; email and phone published.
- 04
Sieyuan 思源电气Sieyuan
Registered as 思源电气股份有限公司 in 1993.
- Instrument transformers
- Disconnect switches
- Power capacitors
- Reactors
Why it ranks here: registered legal entity on file; email and phone published; operating since 1993.
International disconnect switch brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
Siemens Energy 西门子能源 Full profile
Energy technology across generation, grids and storage.
- Transformers
- Grid technologies
- Gas turbines
- Generation equipment
- Energy storage technologies
- Industrial electrification
Why it ranks here: registered legal entity on file; email and phone published.
- INT
Eaton 伊顿 Full profile
Power management, electrical protection and backup power systems.
- Circuit breakers
- Switchgear
- Ring main units
- UPS and backup power
- Surge protection
- Hazardous-area equipment
Why it ranks here: registered legal entity on file; operating since 1911.
- INT
Hitachi Energy 日立能源 Full profile
Grid technologies, transformers and high-voltage systems.
- Transformers
- High-voltage equipment
- Vacuum circuit breakers
- HVDC systems
- Grid automation
- Asset management software
Why it ranks here: registered legal entity on file; phone published; operating since 2021.
More Disconnect switches manufacturers and brands
| Brand | Registered company | Website | Email / phone |
|---|---|---|---|
| Zhang Gao Dian Qi长高电气 | 长高电气集团股份公司 | changgaogroup.com | 0731-88585095 |
| GE VernovaGE Vernova | 美国通用电气公司 | gevernova.com | — |
| NHVS新东北电气NHVS | 新东北电气集团隔离开关有限公司 | — | — |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | XD Electric西电XD | Shaanxi | 1959 | China XD Group Co., Ltd. |
| 02 | Pinggao平高PG | Henan | 1970 | Pinggao Group Co., Ltd. |
| 03 | Taikai泰开TK | Shandong | — | Taikai Group Co., Ltd. |
| 04 | Sieyuan思源电气Sieyuan | Shanghai | 1993 | 思源电气股份有限公司 |
Frequently asked questions
How many disconnect switches manufacturers and suppliers in China are listed here?
10 companies are listed for disconnect switches (隔离开关). 4 Chinese manufacturers have full profiles and are ranked; 3 international brands with China operations are listed separately.
Where are China's disconnect switches manufacturers located?
Among profiled companies: Shanghai (3), Shaanxi (1), Henan (1), Shandong (1), Beijing (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 9 have an official website and 5 publish an email address.