Updated Aug 15, 2026 · Public platform & industry data

Aug 15, 2026 Updated

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2026 Top 10 Three Phase Isolation Transformer Manufacturers in China

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Top-rated Three Phase Isolation Transformer suppliers, How to choose a Three Phase Isolation Transformer manufacturer, Best Three Phase Isolation Transformer companies in China

The top 10 Three Phase Isolation Transformer manufacturers in China for 2026 are: Zhejiang Fujie Electric Co., Ltd, Wuxi Xien Electric Co., Ltd, Shanghai Voltage Regulator Factory, Shanghai Chuxin Electric Technology Co., Ltd, Shanghai Laichen Electrical Equipment Manufacturing Co., Ltd, Shenzhen Anbote Power Equipment Co., Ltd, Shanghai Huyong Electrical Equipment Manufacturing Co., Ltd, Zhejiang Quan (Shanghai) Electrical Equipment Manufacturing Co., Ltd, Shanghai Weimin Electrical Equipment Manufacturing Co., Ltd, Shiguan Electric (Shanghai) Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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Zhejiang Fujie Electric Co., Ltd
Overall Score4.9 / 5
Est. Date2006-03-03
Registered Capital60000K CNY

Zhejiang Fujie Electric Co., Ltd., with its registered address at 128 Jingwu Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province (within Wenzhou Huayu Power Supply Manufacturing Co., Ltd.), registered with the Yueqing Market Supervision and Administration Bureau, and represented by Jiao Xiaobin as its legal representative. Its business scope includes the design, manufacturing, processing, and sales of distribution switch control equipment, explosion-proof electrical appliances, mining equipment, high and low voltage electrical appliances and components, transformers, box type substations, transmission and distribution equipment, complete sets of electrical and electrical equipment, substation equipment, industrial automation and electrical control supporting equipment, instruments and meters (excluding measuring instruments), wires and cables, electromechanical equipment, and electronic components; Import and export of goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Three Phase Isolation Transformer, Mining Lighting Transformer, Mining Dry-Type Transformer

Top 2
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Wuxi Xien Electric Co., Ltd
Overall Score4.7 / 5
Est. Date2005-03-25
Registered Capital25000K CNY

Wuxi Xien Electric Co., Ltd., registered in Zone A, Gangxia Industrial Park, Donggang Town, Xishan District, Wuxi City, with the administrative approval bureau of Xishan District and Qian Ming as the legal representative. Its business scope includes the manufacturing, processing, technology development, technology transfer, and technical services of transformers, iron cores, power equipment, electrical complete sets of equipment, environmental engineering equipment, sound insulation and noise reduction equipment, and ordinary mechanical equipment; Import and export business of various commodities and technologies through self operation and agency, except for commodities and technologies restricted or prohibited from import and export by the state; Housing rental services; Road transportation of ordinary goods. (Projects that require approval by law must be approved by relevant departments before conducting business activities) Licensed projects: Power generation, transmission, and supply business (projects that require approval by law must be approved by relevant departments before conducting business activities, and specific business projects are subject to the approval results) General projects: Manufacturing of electronic components and electromechanical equipment (except for projects that require approval by law, business activities can be carried out independently based on the business license in accordance with the law). Core products: Three Phase Isolation Transformer, Magnetic Field Coil,

Top 3
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Shanghai Voltage Regulator Factory
Overall Score4.7 / 5
Est. Date1998-01-26
Registered Capital2000K CNY

Shanghai Voltage Regulator Factory, registered at No. 183 Huining Road, Shanghai, with the Huangpu District Market Supervision Bureau as the registration authority and Chen Yanshun as the legal representative. Its business scope includes voltage stabilizers, transformers, distribution cabinets, screens, boxes, DC screens, variable speed and frequency equipment and accessories. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Three Phase Isolation Transformer, , Marine Variable Frequency Power Supply

TOP4
Shanghai Chuxin Electric Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2016-05-23
Registered Capital1000K CNY

Shanghai Chuxin Electric Technology Co., Ltd., with its registered address at Room 2672, No. 2799 Fengzhe Road, Qingcun Town, Fengxian District, Shanghai, is registered with the Market Supervision Bureau of Fengxian District. The legal representative is Zhang Yan, and the business scope includes technology development, technical consulting, technical services, and technology transfer in the fields of electrical technology, electronic technology, and computer technology. The company also engages in wholesale and retail of power equipment, power equipment, mechanical equipment and accessories, electromechanical equipment and accessories, control equipment manufacturing and processing (limited to branch operations), wholesale and retail of high and low voltage distribution cabinets, instruments and meters, hardware products, and computer information system integration. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Three Phase Isolation Transformer, High Frequency Inverter Power Supply, Low Voltage High Current Dc Power Supply

TOP5
Shanghai Laichen Electrical Equipment Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2020-04-16
Registered Capital3000K CNY

Shanghai Laichen Electrical Equipment Manufacturing Co., Ltd., with its registered address at Building 1, No. 188 Xinghuo Road, Qingcun Town, Fengxian District, Shanghai, is registered with the Fengxian District Market Supervision Administration. The legal representative is Wan Qingming, and its business scope includes general projects such as sales of electrical equipment; Wholesale of electronic components; Sales of power electronic components; Sales of distribution switch control equipment; Sales of photovoltaic equipment and components; Operation of wires and cables; Sales of intelligent power transmission and distribution and control equipment; Sales of pumps and vacuum equipment; Sales of valves and plugs; Operating at the lower limit of branch offices: manufacturing of mechanical and electrical equipment, manufacturing of transformers, rectifiers, and inductors, manufacturing of power transmission, distribution, and control equipment (except for projects that require approval according to law, operating activities are carried out independently based on the business license in accordance with the law).. Core products: Three Phase Isolation Transformer, Three Phase Voltage Regulator, Three Phase Dry-Type Transformer

TOP6
Shenzhen Anbote Power Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2008-02-01
Registered Capital6000K CNY

Shenzhen Anbote Power Equipment Co., Ltd. is registered at Room 1007A, Building 2, Comprehensive Building T2, Huayi Brothers Cultural City, No. 315 Jinbi Road, Pingshan Community, Tangkeng Street, Pingshan District, Shenzhen. The registered authority is the Shenzhen Market Supervision Administration, and the legal representative is Wang Xiaogang. The company's business scope includes domestic commerce, material supply and marketing, and import and export of goods and technology. (The above does not include projects that are prohibited or require pre-approval by laws, administrative regulations, or decisions of the State Council.). ^Production, development, and sales of power equipment, lightning protection equipment, electrical control systems, and network equipment technology.. Core products: Three Phase Isolation Transformer, Power Converter, Power Generator

TOP7
Shanghai Huyong Electrical Equipment Manufacturing Co., Ltd
Overall Score4.5 / 5
Est. Date2010-09-01
Registered Capital5000K CNY

Shanghai Huyong Electrical Equipment Manufacturing Co., Ltd., with its registered address at Block 7, 5th Floor, Zone C, No. 5888 Huyi Road, Jiading District, Shanghai, is registered with the Jiading District Market Supervision Administration. The legal representative is Fan Houhua, and its business scope includes general projects such as transformer, rectifier, and inductor manufacturing; Manufacturing of power transmission, distribution and control equipment; Manufacturing of power facilities and equipment; Sales of generators and generator sets; Sales of metal materials; Sales of instruments and meters; Wholesale of hardware products; Retail of hardware products; Operation of wires and cables; Sales of household appliances; Electronic product sales. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Three Phase Isolation Transformer, Three Phase Voltage Regulator, Three-Phase Voltage Stabilizer

TOP8
Zhejiang Quan (Shanghai) Electrical Equipment Manufacturing Co., Ltd
Overall Score4.5 / 5
Est. Date2013-04-19
Registered Capital1000K CNY

Zhejiang Quan (Shanghai) Electrical Equipment Manufacturing Co., Ltd., with its registered address at Building H39, No. 2, Lane 158, Gangye Road, Xiaokunshan Town, Songjiang District, Shanghai, is registered with the Songjiang District Market Supervision Administration. The legal representative is Zhu Lin. Its business scope includes research and development, manufacturing, processing, maintenance (excluding installation, maintenance, and testing of power facilities), and sales of electrical equipment, electrical equipment, power equipment, transformers, voltage regulators, explosion-proof electrical appliances, electrical control cabinets, distribution boxes, switches, water pumps, and valves (excluding pressure); Sales of metal materials, wires and cables, building materials, lighting fixtures, packaging materials, and wooden products. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Three Phase Isolation Transformer, 380V To 220V415v420v480v690v1140v, Isolation Transformer

TOP9
Shanghai Weimin Electrical Equipment Manufacturing Co., Ltd
Overall Score4.4 / 5
Est. Date2012-02-23
Registered Capital1000K CNY

Shanghai Weimin Electrical Equipment Manufacturing Co., Ltd., registered at Room 107, Building 21, No. 251 Liantang Road, Xinghuo Development Zone, Fengxian District, Shanghai, registered with the Market Supervision Administration of Fengxian District, with Zhu Yongyi as the legal representative. Its business scope includes the manufacturing, processing, maintenance (except for installation, maintenance, and testing of power facilities) and sales of electrical equipment, power equipment, transformers, voltage regulators, inverters, transformers, electrical equipment, switches, lighting fixtures, and high and low voltage distribution boxes; Sales of metal materials and building decoration materials (excluding dangerous goods). Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Three Phase Isolation Transformer, Voltage Regulator, Voltage Regulator

TOP10
Shiguan Electric (Shanghai) Co., Ltd
Overall Score4.4 / 5
Est. Date2005-04-25
Registered Capital50000K CNY

Shiguan Electric (Shanghai) Co., Ltd., with its registered address at No. 4257 Shaji, Caojing Town, Jinshan District, Shanghai, is registered with the Jinshan District Market Supervision Administration. The legal representative is Chao Milian, and its business scope includes the manufacturing and sales of transformers, voltage stabilizers, welding machines, high and low voltage electrical appliances, and complete sets of mechanical equipment, as well as the installation and maintenance services of electromechanical equipment (excluding special equipment). Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Three Phase Isolation Transformer, Voltage Regulator, Voltage Regulator

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Zhejiang Fujie Electric Co., Ltd2006-03-03Three Phase Isolation Transformer, Mining Lighting Transformer, Mining Dry-Type Transformer60000K CNYNot Supported
Wuxi Xien Electric Co., Ltd2005-03-25Three Phase Isolation Transformer, Magnetic Field Coil, 25000K CNYSupported
Shanghai Voltage Regulator Factory1998-01-26Three Phase Isolation Transformer, , Marine Variable Frequency Power Supply2000K CNYNot Supported
Shanghai Chuxin Electric Technology Co., Ltd2016-05-23Three Phase Isolation Transformer, High Frequency Inverter Power Supply, Low Voltage High Current Dc Power Supply1000K CNYNot Supported
Shanghai Laichen Electrical Equipment Manufacturing Co., Ltd2020-04-16Three Phase Isolation Transformer, Three Phase Voltage Regulator, Three Phase Dry-Type Transformer3000K CNYSupported
Shenzhen Anbote Power Equipment Co., Ltd2008-02-01Three Phase Isolation Transformer, Power Converter, Power Generator6000K CNYNot Supported
Shanghai Huyong Electrical Equipment Manufacturing Co., Ltd2010-09-01Three Phase Isolation Transformer, Three Phase Voltage Regulator, Three-Phase Voltage Stabilizer5000K CNYNot Supported
Zhejiang Quan (Shanghai) Electrical Equipment Manufacturing Co., Ltd2013-04-19Three Phase Isolation Transformer, 380V To 220V415v420v480v690v1140v, Isolation Transformer1000K CNYNot Supported
Shanghai Weimin Electrical Equipment Manufacturing Co., Ltd2012-02-23Three Phase Isolation Transformer, Voltage Regulator, Voltage Regulator1000K CNYSupported
Shiguan Electric (Shanghai) Co., Ltd2005-04-25Three Phase Isolation Transformer, Voltage Regulator, Voltage Regulator50000K CNYNot Supported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of three-phase isolation transformers, it is recommended to prioritize confirming key parameters such as rated capacity, input-output voltage ratio, and insulation level. These indicators directly affect the adaptability of the equipment in industrial power systems or precision instrument power supply scenarios.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support or platform statistical information. Such suppliers can usually provide more stable product supply and technical support.
  • In scenarios such as medical equipment or laboratories that require high power quality, special attention should be paid to the anti-interference ability and voltage stability of three-phase isolation transformers to avoid electromagnetic interference affecting the operation of sensitive equipment.
  • When purchasing, it is recommended to consider the protection level and cooling method based on different application scenarios. For example, outdoor installations should choose models with higher IP protection levels, while enclosed spaces should pay attention to the heat dissipation performance of transformers.

Knowledge Base

Q

Answer: In the medical field, it is used to isolate power sources, prevent patients from getting electric shock due to electrical faults during treatment, ensure the safe operation of medical equipment and the safety of patients' lives, such as CT machines and MRI equipment in hospitals. In industrial automation, interference sources can be isolated to provide stable and pure power for precision control equipment such as PLCs and industrial computers, improving control systems

Q

What is an isolation transformer? The main function is to protect personal safety, but few people know about it! When using the isolation transformer box, in order to ensure the installation strength and sealing effect of the top cover, the weight of the box body is relatively large. Isolation transformers were originally used in the power industry in European countries, widely used in the electronics industry or industrial and mining enterprises, as control power sources for general circuits in machine tools and mechanical equipment.

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs