Updated Aug 26, 2026 · Public platform & industry data

Aug 26, 2026 Updated

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2026 Top 10 Ac Current Transformer Manufacturers in China Shanghai

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Top-rated Ac Current Transformer suppliers, How to choose a Ac Current Transformer manufacturer, Best Ac Current Transformer companies in China

The top 10 Ac Current Transformer manufacturers in Shanghai for 2026 are: Deyang Shugao Power Electronics Co., Ltd, Shanghai Changkai Electric Appliance Co., Ltd, Shanghai Huling Electric Co., Ltd, Shanghai Changkai Electric Appliance Co., Ltd, Shanghai Lianhang Electromechanical Technology Co., Ltd, Shanghai Lianhang Electromechanical Technology Co., Ltd, Hehe Scientific Instruments (Shanghai) Co., Ltd, Ankerui Electric Co., Ltd, Zeweilai (Shanghai) Industrial Control Technology Co., Ltd, Hehe Scientific Instruments (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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Deyang Shugao Power Electronics Co., Ltd

Office Building of Yunao Village Committee, Yuying Town, Luojiang County, Deyang City, Sichuan Province

Overall Score4.9 / 5
Est. Date2011-05-16
Registered Capital500K CNY

Deyang Shugao Power Electronics Co., Ltd. is located in the office building of Yunao Village Committee, Yuying Town, Luojiang County, Deyang City, Sichuan Province. It was established on May 16, 2011 and registered with the Market Supervision Administration of Luojiang District, Deyang City. The legal representative is Changping. Core products: Ac Current Transformer

Top 2
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Shanghai Changkai Electric Appliance Co., Ltd
Overall Score4.7 / 5
Est. Date2014-06-16
Registered Capital10000K CNY

Shanghai Changkai Electric Appliance Co., Ltd., with its registered address at Room 2871, Building 2, No. 1899 Guangtai Road, Fengxian District, Shanghai, is registered with the Market Supervision Administration of Fengxian District. The legal representative is Yang Panpan, and the business scope includes the sales of high and low voltage electrical products, industrial automation equipment, electromechanical equipment, electronic products, power tools, electronic components, instruments and meters, rubber and plastic products, hardware and electrical equipment, research and development, design, manufacturing, sales, installation and maintenance of low-voltage electrical appliances and accessories, mechanical equipment and accessories, molds, engaged in import and export business of goods and technology, technical services, technical consulting, technical development, and technology transfer in the field of electrical and electrical technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Ceramic/Composite Wall Sleeve, Porcelain Insulator

Top 3
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Shanghai Huling Electric Co., Ltd
Overall Score4.7 / 5
Est. Date2013-10-16
Registered Capital2000K CNY

Shanghai Huling Electric Co., Ltd., with its registered address at Room 884, Building 4, No. 6558 Tingwei Road, Jinshan Industrial Zone, Shanghai, is registered with the Jinshan District Market Supervision and Administration Bureau. The legal representative is Lai Nuanxiang, and its business scope includes sales of electrical equipment, complete sets of electrical equipment, transmission and transformation equipment, high and low voltage electrical equipment, industrial automation equipment, electronic components, hardware and electrical equipment. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Current Transformer, Voltage Transformer

TOP4
Shanghai Changkai Electric Appliance Co., Ltd
Overall Score4.6 / 5
Est. Date2014-06-16
Registered Capital10000K CNY

Shanghai Changkai Electric Appliance Co., Ltd., with its registered address at Room 2871, Building 2, No. 1899 Guangtai Road, Fengxian District, Shanghai, is registered with the Market Supervision Administration of Fengxian District. The legal representative is Yang Panpan, and the business scope includes the sales of high and low voltage electrical products, industrial automation equipment, electromechanical equipment, electronic products, power tools, electronic components, instruments and meters, rubber and plastic products, hardware and electrical equipment, research and development, design, manufacturing, sales, installation and maintenance of low-voltage electrical appliances and accessories, mechanical equipment and accessories, molds, engaged in import and export business of goods and technology, technical services, technical consulting, technical development, and technology transfer in the field of electrical and electrical technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Fault Indicator,

TOP5
Shanghai Lianhang Electromechanical Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2015-03-04
Registered Capital5000K CNY

Shanghai Lianhang Electromechanical Technology Co., Ltd., with its registered address at Room 6033, Zone 1, Building 1, No. 888 Huanhu West Second Road, Lingang New Area, China (Shanghai) Pilot Free Trade Zone, is registered with the Market Supervision and Administration Bureau of Lingang New Area, with Lu Zhaohang as its legal representative. Its business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion in the field of electromechanical technology; Software development; Information system integration services; Industrial Internet data service; Sales of electrical and mechanical equipment; Sales of industrial automatic control system devices; Sales of electronic measuring instruments; Sales of optical instruments; Sales of pumps and vacuum equipment; Sales of hydraulic power machinery and components; Sales of pneumatic power machinery and components; Retail of hardware products; Wholesale of automotive spare parts; Maintenance of electronic and mechanical equipment (excluding special equipment); Internet sales (except for the sale of goods that need to be licensed); Import and export of goods; Technology import and export; Import and export agency. (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: Ac Current Transformer, Circuit Breaker, Seals And Fasteners

TOP6
Shanghai Lianhang Electromechanical Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2015-03-04
Registered Capital5000K CNY

Shanghai Lianhang Electromechanical Technology Co., Ltd., with its registered address at Room 6033, Zone 1, Building 1, No. 888 Huanhu West Second Road, Lingang New Area, China (Shanghai) Pilot Free Trade Zone, is registered with the Market Supervision and Administration Bureau of Lingang New Area, with Lu Zhaohang as its legal representative. Its business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion in the field of electromechanical technology; Software development; Information system integration services; Industrial Internet data service; Sales of electrical and mechanical equipment; Sales of industrial automatic control system devices; Sales of electronic measuring instruments; Sales of optical instruments; Sales of pumps and vacuum equipment; Sales of hydraulic power machinery and components; Sales of pneumatic power machinery and components; Retail of hardware products; Wholesale of automotive spare parts; Maintenance of electronic and mechanical equipment (excluding special equipment); Internet sales (except for the sale of goods that need to be licensed); Import and export of goods; Technology import and export; Import and export agency. (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: Ac Current Transformer, Speed Reducer, Air Filter

TOP7
Hehe Scientific Instruments (Shanghai) Co., Ltd
Overall Score4.5 / 5
Est. Date2013-02-07
Registered Capital10000K CNY

Huahe Scientific Instruments (Shanghai) Co., Ltd., registered at Room J6914, Zone E, 1st Floor, Building 4, No. 358_368 Kefu Road, Jiading District, Shanghai, registered with the Jiading District Market Supervision Administration, with Gong Xiangmin as the legal representative. Its business scope includes licensed projects such as import and export of goods; Technology import and export; Import and export agency. General projects: sales of instruments and meters, electronic equipment, mechanical equipment, industrial automation equipment, hardware products, electrical wires and cables, metal materials, electronic products, office supplies, labor protection supplies, automotive accessories, household items, chemical raw materials and products (excluding hazardous chemicals, monitored chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), technical development, technology transfer, technical consulting, and technical services in the field of scientific instruments and technology, leasing of instruments and meters (excluding financial leasing), and maintenance of mechanical and electrical equipment (excluding special equipment). (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: Ac Current Transformer, Pulse Generator, Plunger Pump

TOP8
Ankerui Electric Co., Ltd
Overall Score4.5 / 5
Est. Date2003-06-23
Registered Capital250784.65499999997K CNY

Ankerui Electric Co., Ltd., with its registered address at No. 253 Yulu Road, Jiading District, Shanghai, is registered with the Shanghai Municipal Administration for Market Regulation. The legal representative is Zhou Zhong, and its business scope includes general projects: manufacturing of electrical instruments and meters; Manufacturing of intelligent instruments and meters; Manufacturing of capacitors and their supporting equipment; Manufacturing of transformers, rectifiers, and inductors; Manufacturing of power transmission, distribution and control equipment; Manufacturing of power electronic components; Manufacturing of lighting fixtures; Manufacturing of electrical signal equipment devices; Manufacturing of IoT devices; Manufacturing of industrial automatic control system devices; Manufacturing of distribution switch control equipment; Manufacturing of atmospheric pollution monitoring and detection instruments and meters; Manufacturing of specialized instruments and meters for environmental monitoring; Research and development of Internet of Things technology; Internet of Things technology services; Internet data service; Internet of Things application services; Software development; Information system integration services; Information system operation and maintenance services; Information technology consulting services; Computer system services; Industrial Internet data service; Manufacturing of information security equipment; Engineering management services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Energy saving management services; Contract energy management; Energy storage technology services; Engineering and technical research and experimental development; Engineering and technical services (excluding planning management, survey, design, and supervision); Sales of charging stations; Sales of intelligent power transmission and distribution and control equipment; Sales of distribution switch control equipment; Sales of industrial automatic control system devices; Sales of capacitors and their supporting equipment; Sales of electrical signal equipment devices; Sales of power electronic components; Sales of electrical instruments and meters; Software sales; Sales of intelligent instruments and meters; Sales of lighting fixtures; Sales of IoT devices; Sales of information security equipment. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) Licensed project: sales of specialized products for computer information system security; Design of intelligent building systems; Construction project design; Construction project construction; Import and export of goods; Technology import and export. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Ac Current Transformer, Power Meter, Anti Backflow Monitoring Electric Meter

TOP9
Zeweilai (Shanghai) Industrial Control Technology Co., Ltd
Overall Score4.4 / 5
Est. Date2005-08-19
Registered Capital15000K CNY

Zeweilai (Shanghai) Industrial Control Technology Co., Ltd., registered at Room 101, No. 12, Lane 1661, Jialuo Road, Jiading District, Shanghai JT7878, registered with the Jiading District Market Supervision Administration, with Zhu Xiaoya as the legal representative. Its business scope includes licensed projects such as building intelligent system design; Electrical installation services. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses issued by relevant departments.) General projects: sales of industrial automatic control system devices; Sales of industrial control computers and systems; Computer system services; Sales of instruments and meters; Sales of intelligent instruments and meters; Scale sales; Sales of intelligent power transmission and distribution and control equipment; Sales of distribution switch control equipment; Sales of fans and blowers; Sales of mechanical and electrical equipment; Sales of micro motors and components; Sales of electric dynamometer motors; Sales of generators and generator sets; Sales of advanced power electronic devices; Sales of display devices; Sales of environmental emergency detection instruments and meters; Sales of electrical equipment; Sales of pneumatic power machinery and components; Industrial design services; Sales of industrial robots; Installation and maintenance of industrial robots; Electronic product sales; Wholesale of electronic components; Sales of power electronic components; Wholesale of computer software, hardware, and auxiliary equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Intelligent control system integration; Import and export of goods; Technology import and export; Import and export agency; Sales of servo control mechanisms; Information system integration services; Computer and office equipment maintenance; Quantum computing technology services; Electrical equipment repair. (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: Ac Current Transformer, Open-Loop Current Sensor, Current Transducer

TOP10
Hehe Scientific Instruments (Shanghai) Co., Ltd
Overall Score4.4 / 5
Est. Date2013-02-07
Registered Capital10000K CNY

Huahe Scientific Instruments (Shanghai) Co., Ltd., registered at Room J6914, Zone E, 1st Floor, Building 4, No. 358_368 Kefu Road, Jiading District, Shanghai, registered with the Jiading District Market Supervision Administration, with Gong Xiangmin as the legal representative. Its business scope includes licensed projects such as import and export of goods; Technology import and export; Import and export agency. General projects: sales of instruments and meters, electronic equipment, mechanical equipment, industrial automation equipment, hardware products, electrical wires and cables, metal materials, electronic products, office supplies, labor protection supplies, automotive accessories, household items, chemical raw materials and products (excluding hazardous chemicals, monitored chemicals, fireworks and firecrackers, civilian explosives, and precursor chemicals), technical development, technology transfer, technical consulting, and technical services in the field of scientific instruments and technology, leasing of instruments and meters (excluding financial leasing), and maintenance of mechanical and electrical equipment (excluding special equipment). (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: Ac Current Transformer, Hydraulic Pump Gear, Paint Chemical Pump, Oil Pump

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Deyang Shugao Power Electronics Co., Ltd2011-05-16Ac Current Transformer500K CNYNot Supported
Shanghai Changkai Electric Appliance Co., Ltd2014-06-16Ac Current Transformer, Ceramic/Composite Wall Sleeve, Porcelain Insulator10000K CNYNot Supported
Shanghai Huling Electric Co., Ltd2013-10-16Ac Current Transformer, Current Transformer, Voltage Transformer2000K CNYNot Supported
Shanghai Changkai Electric Appliance Co., Ltd2014-06-16Ac Current Transformer, Fault Indicator, 10000K CNYNot Supported
Shanghai Lianhang Electromechanical Technology Co., Ltd2015-03-04Ac Current Transformer, Circuit Breaker, Seals And Fasteners5000K CNYSupported
Shanghai Lianhang Electromechanical Technology Co., Ltd2015-03-04Ac Current Transformer, Speed Reducer, Air Filter5000K CNYNot Supported
Hehe Scientific Instruments (Shanghai) Co., Ltd2013-02-07Ac Current Transformer, Pulse Generator, Plunger Pump10000K CNYNot Supported
Ankerui Electric Co., Ltd2003-06-23Ac Current Transformer, Power Meter, Anti Backflow Monitoring Electric Meter250784.65499999997K CNYNot Supported
Zeweilai (Shanghai) Industrial Control Technology Co., Ltd2005-08-19Ac Current Transformer, Open-Loop Current Sensor, Current Transducer15000K CNYNot Supported
Hehe Scientific Instruments (Shanghai) Co., Ltd2013-02-07Ac Current Transformer, Hydraulic Pump Gear, Paint Chemical Pump, Oil Pump10000K CNYNot Supported

Purchasing Guide

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

  • For procurement requirements that require the use of AC current transformers, it is recommended to prioritize confirming key technical parameters such as rated current ratio, accuracy level, and frequency range to ensure compatibility with power monitoring or energy metering systems.
  • In industrial automation or new energy generation scenarios, suitable protection levels (such as IP54 or higher) and structural types (open or closed) of AC current transformers should be selected according to the installation environment.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information to balance technical adaptability and supply chain stability.
  • For different application scenarios (such as distribution cabinet integration or high-voltage line monitoring), it is recommended to select based on the type of secondary output signal (such as 4-20mA or 0-5V) and the interface requirements of the backend equipment.

Knowledge Base

Q

Current transformer is one of the indispensable and important components in the power system. If it is selected too small, it will have a negative impact on the entire system. This article will introduce the consequences and countermeasures of selecting a smaller current transformer.

Q

This article analyzes the working principle and output characteristics of current transformers, clarifies that their output is AC signal rather than DC, and explores their practical application scenarios and precautions in industrial measurement.

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