Updated Sep 13, 2026 · Public platform & industry data

Sep 13, 2026 Updated

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2026 Top 10 Inspection Power Supply Box Manufacturers in China

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Top-rated Inspection Power Supply Box suppliers, How to choose a Inspection Power Supply Box manufacturer, Best Inspection Power Supply Box companies in China

The top 10 Inspection Power Supply Box manufacturers in China for 2026 are: Shanghai Sprewell Electric Co., Ltd, Zhejiang Tengxuan Explosion proof Electrical Appliance Co., Ltd, Ya'an Explosion proof Technology Co., Ltd, Nanyang Jinming Explosion proof Electrical Co., Ltd, Nanyang Shengtong Explosion proof Motor and Electrical Appliance Co., Ltd, Anhui Minghang Explosion proof Technology Co., Ltd, Shandong Port Electric Technology Co., Ltd, Guangzhou Longji Power Transmission and Distribution Equipment Co., Ltd, Hebei Zhoushou Explosion proof Electrical Appliance Co., Ltd, Zhejiang Junmeng Explosion proof Technology 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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Shanghai Sprewell Electric Co., Ltd
Overall Score4.9 / 5
Est. Date2011-06-20
Registered Capital20410K CNY

Shanghai Spweier Electric Co., Ltd., registered at 4th floor, No. 10, Lane 388, Luodian Road, Baoshan District, Shanghai, with the registration authority of Baoshan District Market Supervision Administration and the legal representative of Xie Qiuhua, has a business scope including general projects: research and development of distribution switch control equipment; Sales of distribution switch control equipment; Sales of intelligent power transmission and distribution and control equipment; Sales of cloud computing devices; Wholesale of hardware products; Sales of mechanical parts and components; Sales of plastic products; Sales of refrigeration and air conditioning equipment; Sales of mechanical and electrical equipment; Sales of lighting fixtures; Sales of information security equipment; Sales of lighting fixtures; Sales of power electronic components; Mold sales; Sales of fans and blowers; Sales of photovoltaic equipment and components; Solar power generation technology services; Rental of photovoltaic power generation equipment; Import and export of goods; Technology import and export; Sales of electrical equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of paper products. (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: Inspection Power Supply Box, Cabinet Temperature Control Heater, Waterproof Junction Box

Top 2
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Zhejiang Tengxuan Explosion proof Electrical Appliance Co., Ltd
Overall Score4.7 / 5
Est. Date2015-09-24
Registered Capital51800K CNY

Zhejiang Tengxuan Explosion proof Electrical Appliance Co., Ltd., registered at No. 20 Fengxiang Road, Yang'ao Village, Yanpen Street, Yueqing City, Wenzhou City, Zhejiang Province, with the registration authority of Yueqing Market Supervision Administration and the legal representative of Liu Yujuan, engages in the manufacturing, processing, and sales of explosion-proof electrical appliances, explosion-proof lamps, explosion-proof pipes, explosion-proof fans, explosion-proof instruments and meters (excluding measuring instruments), explosion-proof anti-corrosion equipment, distribution switch control equipment, electrical complete sets of equipment, high and low voltage electrical appliances and accessories; 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: Inspection Power Supply Box, Explosion-Proof Control Box, Explosion-Proof Distribution Box

Top 3
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Ya'an Explosion proof Technology Co., Ltd
Overall Score4.7 / 5
Est. Date2010-11-05
Registered Capital50080K CNY

Ya'an Explosion proof Technology Co., Ltd., registered in Jinghong Temple Front Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, with the registration authority of Yueqing Market Supervision Administration and the legal representative of Xu Xiangao, operates in general projects including technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of security equipment; Manufacturing of distribution switch control equipment; Manufacturing of lighting fixtures; Mining machinery manufacturing; Manufacturing of metal tools; Manufacturing of instruments and meters; Mold manufacturing; Research and development of distribution switch control equipment; Manufacturing of mechanical and electrical equipment; General equipment manufacturing (excluding special equipment manufacturing); Fan and fan manufacturing (except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law). Licensed project: Import and export of goods; Technology import and export (projects that require approval by law can only be carried out after approval by relevant departments, and specific business projects are subject to the approval results).. Core products: Inspection Power Supply Box, Explosion Proof Distribution Cabinet, Explosion-Proof Distribution Box

TOP4
Nanyang Jinming Explosion proof Electrical Co., Ltd
Overall Score4.6 / 5
Est. Date2019-05-13
Registered Capital5000K CNY

Nanyang Jinming Explosion proof Electrical Co., Ltd., with its registered address at No. 1, North Road, 300 meters east of the intersection of Funiu Road and Weishi Road, Wancheng District, Nanyang City, Henan Province, is registered with the Wancheng Branch of Nanyang Market Supervision Administration Bureau and represented by Yang Yu as the legal representative. Its business scope includes the production and sales of explosion-proof electrical equipment; Production, sales, and technical services of complete sets of high and low voltage equipment, industrial automation control equipment; Sales of explosion-proof motors, electrical appliances, and accessories. Core products: Inspection Power Supply Box, Explosion Proof Cabin, Explosion-Proof Junction Box

TOP5
Nanyang Shengtong Explosion proof Motor and Electrical Appliance Co., Ltd
Overall Score4.6 / 5
Est. Date2015-12-01
Registered Capital10000K CNY

Nanyang Shengtong Explosion proof Motor and Electrical Appliance Co., Ltd., registered at No.1 Huichuang Economic Industrial Park, Vocational Education Park, Nanyang City, Henan Province, with the registration authority of Yahe Work Zone Branch of Nanyang Market Supervision Administration Bureau and the legal representative being Li Wei. Its business scope includes the production and sales of explosion-proof electrical, explosion-proof air conditioning, distribution cabinets, lighting fixtures, ventilation equipment, and related technical information consulting; Sales of Class II and III electromechanical products and metal materials*. Core products: Inspection Power Supply Box, Application For Explosion Proof Certificate, Explosion-Proof Air Conditioner

TOP6
Anhui Minghang Explosion proof Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2018-11-15
Registered Capital11990K CNY

Anhui Minghang Explosion proof Technology Co., Ltd., with its registered address at No. 9 Tongxin Village, Bailong Town, Feidong County, Hefei City, Anhui Province, is registered with the Feidong County Market Supervision Administration Bureau and represented by Chen Luhua 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; Research and development of metal products; Container manufacturing; Manufacturing of metal packaging containers and materials; Manufacturing of metal structures; Manufacturing of metal products for safety and firefighting purposes; Manufacturing of metal daily necessities; Manufacturing of environmental emergency detection instruments and meters; Manufacturing of environmental emergency technology equipment; Manufacturing of security equipment; Research and development of distribution switch control equipment; Manufacturing of distribution switch control equipment; Manufacturing of power transmission, distribution and control equipment; Manufacturing of other general instruments; Engineering and technical research and experimental development; Design and construction services for security technology prevention systems; Electrical equipment repair; Container sales; Container maintenance; Sales of security equipment; Sales of electrical equipment; Sales of metal products; Retail of hardware products; Fire technology services; Sales of firefighting equipment; Manufacturing of refrigeration and air conditioning equipment; Sales of refrigeration and air conditioning equipment; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Information consulting services (excluding licensed information consulting services); Ordinary mechanical equipment installation services (excluding licensed businesses, can independently operate projects that are not prohibited or restricted by laws and regulations) Licensed projects: electrical installation services; Construction professional operations (projects that require approval according to law, business activities can only be carried out after approval by relevant departments, and specific business projects are subject to approval documents or permits from relevant departments). Core products: Inspection Power Supply Box, Hazardous Waste Temporary Storage Room, Explosion Proof Battery Container

TOP7
Shandong Port Electric Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2024-01-03
Registered Capital66000K CNY

Shandong Port Electric Technology Co., Ltd., registered at Jiaoxi Industrial Park, Jiaoxi Street, Jiaozhou City, Qingdao City, Shandong Province, is located at the east end of Ping'an Avenue on the south side of Hejiatun Village. The registration authority is Jiaozhou Market Supervision Administration, and the legal representative is Kuang Yuanke. The business scope includes general projects such as research and development of high-efficiency energy-saving technologies in the power industry; Sales of artificial intelligence hardware; Manufacturing of non-ferrous metal alloys; Manufacturing of electrical equipment; Operation of wires and cables; Sales of mechanical and electrical equipment; Information technology consulting services; Manufacturing of power facilities and equipment; Sales of generators and generator sets; Sales of household appliances; Manufacturing of electronic components and electromechanical equipment; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Engineering and technical research and experimental development; Manufacturing of electrical signal equipment devices; Information system integration services; Sales of advanced power electronic devices; Import and export of goods; Manufacturing of distribution switch control equipment; Research and development of emerging energy technologies; Information consulting services (excluding licensed information consulting services); Retail of hardware products; Sales of power electronic components; Complete sets of nuclear power equipment and engineering technology research and development; Sales of building materials; Research and development of motors and their control systems; Manufacturing of transformers, rectifiers, and inductors; Manufacturing of mechanical and electrical equipment; Sales of electrical equipment; Wholesale of electronic components; Electrical equipment repair; Research and development of distribution switch control equipment; Sales of power facilities and equipment; Mechanical equipment research and development; Solar power generation technology services; Sales of communication equipment; Sales of office equipment; Wholesale of hardware products; Sales of distribution switch control equipment; Sales of photovoltaic equipment and components; Sales of firefighting equipment; Technical services for on-site assessment of fire safety acceptance in construction projects. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed projects: inspection and testing services; Installation, maintenance, and testing of power transmission, supply, and receiving facilities; Construction project construction; Power generation business, transmission business, and power supply (distribution) business; Manufacturing of wires and cables; Electrical installation services. (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: Inspection Power Supply Box, , Box-Type Substation

TOP8
Guangzhou Longji Power Transmission and Distribution Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2007-02-17
Registered Capital60800K CNY

Guangzhou Longji Power Transmission and Distribution Equipment Co., Ltd., with its registered address at No. 16 Lianyun Yiheng Road, Shiqi Town, Panyu District, Guangzhou City (Building 2), registered with the Panyu District Market Supervision and Administration Bureau of Guangzhou City, and represented by Zou Xuehua as its legal representative. Its business scope includes the manufacturing of power facilities and equipment; Manufacturing of power transmission, distribution and control equipment; Manufacturing of distribution switch control equipment; Manufacturing of electrical accessories; Manufacturing of photovoltaic equipment and components; Manufacturing of electrical equipment; Manufacturing of capacitors and their supporting equipment; Manufacturing of power electronic components; Manufacturing of metal structures; Manufacturing of mechanical and electrical equipment; Sales of distribution switch control equipment; Sales of electrical equipment; Sales of power electronic components; Sales of electrical and mechanical equipment; Sales of intelligent power transmission and distribution and control equipment; Sales of advanced power electronic devices; Sales of industrial automatic control system devices; Sales of labor protection equipment; Wholesale of electronic components; Sales of firefighting equipment; Sales of metal structures; Sales of metal products; Operation of wires and cables; Sales of metal materials; Sales of electrical equipment; Sales of specialized equipment, key systems, and components for rail transit; Sales of specialized equipment for environmental protection; Research and development of metal products; Research and development of distribution switch control equipment; Non residential real estate leasing; estate management; Import and export of goods; Technology import and export; import and export agency. Core products: Inspection Power Supply Box, Aluminum Alloy, Power Distribution Cabinet

TOP9
Hebei Zhoushou Explosion proof Electrical Appliance Co., Ltd
Overall Score4.3 / 5
Est. Date2010-10-27
Registered Capital10000K CNY

Hebei Zhoushou Explosion proof Electrical Appliance Co., Ltd., with its registered address located at the northeast corner of Nanwu Village, Jizhou District, Hengshui City, is registered with the Jizhou District Market Supervision and Administration Bureau. The legal representative is Ji Hong, and its business scope includes explosion-proof electrical appliances, instruments, accessories, production, and sales; Sales of fiberglass products, central air conditioning and accessories, conveying equipment and accessories, cables and cable trays, and electromechanical equipment; Engaging in the export business of our own products and the import business of mechanical equipment, spare parts, and raw and auxiliary materials required by our enterprise (excluding goods restricted or prohibited by the state for company operation or import and export) is prohibited by laws and regulations; Those that require approval shall not operate without approval**. Core products: Inspection Power Supply Box, Explosion-Proof Flexible Conduit, Explosion-Proof Junction Box

TOP10
Zhejiang Junmeng Explosion proof Technology Co., Ltd
Overall Score4.3 / 5
Est. Date2023-06-06
Registered Capital18180K CNY

Zhejiang Junmeng Explosion proof Technology Co., Ltd., registered in Qianzhou Village, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province, with the registration authority of Yueqing Market Supervision Administration and the legal representative of Zhou Yangyang, operates in general projects including research and development of distribution switch control equipment; Manufacturing of power transmission, distribution and control equipment; Manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Manufacturing of electrical signal equipment devices; Manufacturing of mechanical and electrical equipment; Manufacturing of hardware products; Manufacturing of lighting fixtures; Manufacturing of electronic components; Manufacturing of power electronic components; Manufacturing of electrical instruments and meters (except for projects that require approval according to law, conducting business activities independently with a business license in accordance with the law).. Core products: Inspection Power Supply Box, Explosion-Proof Distribution Box, Explosion-Proof Junction Box

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Shanghai Sprewell Electric Co., Ltd2011-06-20Inspection Power Supply Box, Cabinet Temperature Control Heater, Waterproof Junction Box20410K CNYSupported
Zhejiang Tengxuan Explosion proof Electrical Appliance Co., Ltd2015-09-24Inspection Power Supply Box, Explosion-Proof Control Box, Explosion-Proof Distribution Box51800K CNYSupported
Ya'an Explosion proof Technology Co., Ltd2010-11-05Inspection Power Supply Box, Explosion Proof Distribution Cabinet, Explosion-Proof Distribution Box50080K CNYSupported
Nanyang Jinming Explosion proof Electrical Co., Ltd2019-05-13Inspection Power Supply Box, Explosion Proof Cabin, Explosion-Proof Junction Box5000K CNYSupported
Nanyang Shengtong Explosion proof Motor and Electrical Appliance Co., Ltd2015-12-01Inspection Power Supply Box, Application For Explosion Proof Certificate, Explosion-Proof Air Conditioner10000K CNYSupported
Anhui Minghang Explosion proof Technology Co., Ltd2018-11-15Inspection Power Supply Box, Hazardous Waste Temporary Storage Room, Explosion Proof Battery Container11990K CNYSupported
Shandong Port Electric Technology Co., Ltd2024-01-03Inspection Power Supply Box, , Box-Type Substation66000K CNYSupported
Guangzhou Longji Power Transmission and Distribution Equipment Co., Ltd2007-02-17Inspection Power Supply Box, Aluminum Alloy, Power Distribution Cabinet60800K CNYSupported
Hebei Zhoushou Explosion proof Electrical Appliance Co., Ltd2010-10-27Inspection Power Supply Box, Explosion-Proof Flexible Conduit, Explosion-Proof Junction Box10000K CNYNot Supported
Zhejiang Junmeng Explosion proof Technology Co., Ltd2023-06-06Inspection Power Supply Box, Explosion-Proof Distribution Box, Explosion-Proof Junction Box18180K CNYSupported

Purchasing Guide

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

  • For procurement requirements that require the use of maintenance power boxes, it is recommended to prioritize confirming key technical parameters such as rated current, protection level (such as IP54), and box material (such as stainless steel or engineering plastic) to ensure compatibility with on-site electrical loads and environmental conditions.
  • In industrial plants or substations, the maintenance of power boxes should take into account both dust and waterproof performance and convenient operation design. The adaptability can be evaluated by referring to industry application cases provided by suppliers.
  • When selecting suppliers, priority should be given to product matching, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information to balance procurement risks and efficiency.
  • For different scenarios such as temporary maintenance or long-term fixed installation, it is recommended to distinguish the portability requirements and installation methods of the maintenance power box, such as the applicability differences of wall mounted or vertical structures.

Knowledge Base

Q

This article provides a detailed analysis of how to select suitable cables for the maintenance of power boxes, including current carrying capacity, environmental factors, and common matching schemes, to help readers make scientific decisions.

Q

This article analyzes the quota issue of explosion-proof power supply maintenance boxes in Hunan Province from three dimensions: equipment characteristics, industry practices, and practical application scenarios, to help readers understand how to reasonably determine the quota standards for such equipment.

Q

Explosion proof maintenance power box is an electrical equipment used in environments with explosive gases or dust hazards, mainly used to provide a safe and reliable temporary power interface for on-site maintenance operations. This device, through special structural design and material selection, can prevent internal electrical components from generating arcs, sparks, or high temperatures that can ignite explosive mixtures in the external environment. From a functional perspective

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