I. Overview
ZW32-12 Series outdoor AC high-voltage Vacuum circuit breaker (hereinafter referred to as the circuit breaker) is an outdoor distribution equipment with a rated voltage of 12KV and three-phase AC 50Hz. Mainly used for breaking and closing load current, overload current, and short-circuit current in power systems.
Suitable for protection and control in substations and industrial and mining enterprise distribution systems, it can also be used as a section switch for 12kV urban or rural power grids.
Circuit breakers can be equipped with isolation switches or surge protectors according to user needs.
The circuit breaker can be equipped with manual spring mechanism or electric spring mechanism, and the electric spring mechanism can be equipped with wireless remote control.
Circuit breakers can be combined with corresponding controllers to form automatic reclosers, sectionalizers, etc. according to user requirements, achieving distribution network automation.
II. Environmental conditions for use
1. Surrounding air temperature: upper limit+40 ℃, lower limit -40 ℃;
2. Altitude: ≤ 2000m (if the altitude increases, the rated insulation level will correspondingly increase);
3. Wind pressure: not exceeding 700Pa (equivalent to a wind speed of 34m/s);
4. Seismic intensity: not exceeding 8 degrees;
5. Pollution level: Level IV;
6. Temperature difference: not exceeding 25 ℃;
7. Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%;
8. A place without flammability, explosion hazard, chemical corrosion, and severe vibration.
III. Structural characteristics
1. The circuit breaker adopts a three-phase pillar structure, which has the characteristics of stable and reliable breaking performance, no combustion and explosion hazards, maintenance free, small size, light weight, and long service life.
2. The circuit breaker adopts a fully enclosed structure with good sealing performance, which helps to improve moisture-proof and anti condensation performance, especially suitable for use in cold or humid areas.
3. The three-phase pillars and current transformers adopt imported outdoor epoxy resin solid insulation, or indoor epoxy resin wrapped with organic silicon rubber solid insulation; It has the characteristics of high and low temperature resistance, UV resistance, and aging resistance.
4. The operating mechanism adopts a miniaturized spring operating mechanism, with low power of the energy storage motor and low energy consumption for opening and closing; The mechanism transmission adopts the true motion transmission method, with a small number of components and high reliability. The operating mechanism is placed in a sealed mechanism box, which solves the problem of rusting of the operating mechanism and improves its reliability.
5. The opening and closing operations of the circuit breaker can be manually or electrically operated, as well as remotely controlled. It can be matched with intelligent controllers to achieve distribution automation, and can also be combined with coincidence controllers to form automatic reclosers and sectionalizers.
6. Circuit breakers can be equipped with two-phase or three-phase current transformers for overcurrent or short-circuit protection, and can also provide current acquisition signals to intelligent controllers; According to user requirements, measuring current transformers can be installed.
7. The circuit breaker can be equipped with a three-phase interlocking isolation switch, which has a visible fracture when the isolation switch is in the open state, and has an anti misoperation interlock device with the circuit breaker body. The circuit breaker can only be operated when the isolation switch is fully closed or fully opened. Can be connected to lightning arrester post insulators for easy maintenance.
| Model | Size |
| ZW32-12 | 370*950*770mm |
ZW32-12 Intelligent Outdoor High Voltage AC Vacuum circuit breaker with Isolation
At Jihui Electric Group Co., Ltd., we focus on developing and manufacturing reliable medium and low voltage power transmission and distribution equipment. With years of experience in electrical equipment production, we provide solutions for power utilities, industrial companies, renewable energy projects, infrastructure construction, and engineering contractors worldwide.
Our ZW32-12 Intelligent Outdoor High Voltage AC Vacuum Circuit Breaker with Isolation is designed for modern 12kV outdoor distribution systems that require safe switching, reliable fault protection, and intelligent operation. By combining vacuum interruption technology with an integrated isolation function, this product provides a safer and more flexible solution for medium voltage power networks.
Unlike traditional circuit breakers that only provide switching and protection functions, the ZW32-12 intelligent vacuum circuit breaker with isolation is designed to support more advanced power management needs. It allows operators to achieve safer maintenance operations, better fault control, and improved distribution system reliability.
As a professional intelligent outdoor Vacuum Circuit Breaker Manufacturer, we understand that electrical equipment must perform reliably in real working environments. Outdoor power systems may face rain, dust, temperature changes, lightning impacts, and unexpected electrical faults. Therefore, our product design focuses on durability, safety, and long-term stable operation.
The ZW32-12 Intelligent Outdoor High Voltage AC Vacuum Circuit Breaker with Isolation is a high-performance switching device designed for 12kV AC power distribution networks. It is mainly used for controlling, protecting, and isolating electrical circuits in outdoor medium voltage applications.
The product integrates three important functions:
High voltage circuit switching
Vacuum arc interruption protection
Safe isolation operation
The vacuum interruption system allows the breaker to quickly disconnect abnormal currents such as short circuits and overload conditions. The isolation structure provides an additional safety function by creating a visible isolation distance during maintenance operations.
This makes the ZW32-12 suitable for applications where both electrical protection and maintenance safety are important.
Typical application areas include:
Outdoor power distribution networks
Smart grid systems
Industrial power supply systems
Renewable energy collection networks
Outdoor substations
Urban infrastructure projects
At Jihui Electric Group, we are committed to providing dependable power distribution solutions for customers around the world. Located in Yueqing Economic Development Zone, China, our company specializes in research, manufacturing, sales, and service of electrical equipment up to 35kV.
Our product range covers:
Ring main units
Solid insulated switchgear
Combination transformers
Vacuum circuit breakers
Through continuous improvement in design, production technology, and quality management, we provide customers with electrical products that meet different project requirements.
Our manufacturing systems follow international management standards:
ISO9001 Quality Management System
ISO14001 Environmental Management System
ISO45001 Occupational Health and Safety Management System
These certifications guide our daily production activities and help us maintain consistent product quality.
From technical communication to final delivery, our team supports customers throughout the entire purchasing process. We help customers select suitable products, confirm technical parameters, arrange production, and complete international transportation.
Understanding the working principle helps customers choose the right protection equipment. The operation of the ZW32-12 combines vacuum interruption technology, mechanical switching structure, intelligent control, and isolation protection.
During normal operation, the circuit breaker contacts remain connected, allowing current to flow through the power distribution system.
The intelligent control unit continuously monitors operating conditions and collects important information about the equipment status.
When abnormal conditions occur, such as short circuits or excessive current, the protection system sends a signal to the operating mechanism.
The mechanism quickly separates the internal contacts. The vacuum interrupter creates a high insulation environment, allowing the electrical arc to disappear rapidly.
This fast interruption process helps protect transformers, cables, and other electrical equipment from damage.
The isolation function is one of the key advantages of this product. After the circuit is disconnected, the isolation mechanism creates a safe separation point.
This provides additional protection for maintenance personnel and helps ensure safer inspection and repair operations.
For power systems that require frequent maintenance or switching operations, this feature provides significant practical value.
| Operating Stage | Description | Main Benefit |
|---|---|---|
| Normal Operation | Current flows through closed contacts | Stable power transmission |
| Fault Protection | Vacuum interrupter disconnects abnormal current | Fast equipment protection |
| Isolation Operation | Creates visible electrical separation | Safer maintenance process |
| Intelligent Monitoring | Collects operating information | Improved system management |
Source: Working principles are based on IEC 62271-100 high-voltage switchgear standards and common medium voltage vacuum circuit breaker engineering practices.
Safety is one of the most important concerns in power distribution systems. Traditional circuit breakers may require additional isolation devices, increasing installation complexity.
Our ZW32-12 combines circuit breaking and isolation functions into one solution. This reduces equipment installation requirements and improves operational safety.
Modern electrical networks need smarter equipment. The ZW32-12 intelligent vacuum circuit breaker supports automation requirements by providing monitoring and control functions.
Depending on project requirements, it can be integrated with distribution automation systems to improve operation efficiency.
The intelligent functions help users:
Monitor equipment status
Improve fault response speed
Support remote operation
Optimize power distribution management
The vacuum interrupter is the core component of the circuit breaker. It provides excellent arc extinguishing performance and stable electrical protection.
Compared with some traditional switching technologies, vacuum interruption requires less maintenance and offers long service life.
Outdoor electrical equipment must work under changing environmental conditions.
The ZW32-12 is designed with a durable structure to resist:
Rain and moisture
Dust contamination
Temperature changes
Outdoor installation challenges
This makes it suitable for long-term operation in outdoor medium voltage distribution systems.
Space availability is often an important consideration in power projects. The compact design of the ZW32-12 helps customers save installation space while maintaining reliable performance.
It can be applied in different outdoor distribution layouts according to project requirements.
When developing the ZW32-12 Series, our engineers focus on solving practical challenges faced by power system operators.
Electrical faults can cause serious problems if they are not controlled quickly. The ZW32-12 provides rapid interruption capability to reduce the impact of abnormal electrical conditions.
The isolation function improves safety during equipment inspection and maintenance. Operators can clearly identify the isolated section before performing service work.
The vacuum interruption design reduces maintenance needs compared with oil-based switching equipment.
This helps customers reduce operating costs and improve equipment availability.
As power networks become more intelligent, equipment with monitoring and communication capabilities becomes increasingly important.
The ZW32-12 intelligent outdoor vacuum circuit breaker provides a practical solution for modern smart distribution networks.
| Item | ZW32-12 Intelligent Vacuum Circuit Breaker with Isolation | Traditional Outdoor Circuit Breaker |
|---|---|---|
| Interruption Technology | Vacuum interruption | Traditional interruption methods |
| Isolation Function | Integrated isolation design | Usually requires additional equipment |
| Smart Control | Supports intelligent monitoring | Limited automation capability |
| Maintenance Safety | Improved isolation protection | Depends on additional procedures |
Source: Comparison information is summarized from IEC 62271 series standards and practical medium voltage switchgear applications.
At Jihui Electric Group, we understand that different industries have different requirements for electrical protection. Some projects focus on continuous power supply, while others require higher safety levels, automation, and easier maintenance.
The ZW32-12 Intelligent Outdoor High Voltage AC Vacuum Circuit Breaker with Isolation is designed to meet these different needs. With reliable vacuum interruption, intelligent control, and integrated isolation capability, it provides a practical solution for modern medium voltage power distribution systems.
Power utilities need reliable switching equipment to maintain stable electricity supply for residential areas, commercial buildings, and industrial customers. Outdoor distribution lines may experience faults caused by weather conditions, equipment aging, or unexpected electrical problems.
Our 12kV intelligent vacuum circuit breaker with isolation helps utility companies quickly disconnect faulty sections while maintaining normal operation in other parts of the network.
The intelligent monitoring function allows operators to obtain equipment status information and improve distribution network management efficiency.
Smart grids require electrical equipment that can communicate, monitor conditions, and support automation systems. Traditional switching devices often cannot provide enough information for modern power management.
The ZW32-12 intelligent outdoor vacuum circuit breaker supports smart grid development by providing intelligent control functions and reliable switching performance.
It helps power operators improve:
Fault location efficiency
Remote operation capability
Network monitoring performance
Power supply reliability
Renewable energy projects such as solar farms and wind power stations are growing rapidly around the world. These projects require safe medium voltage equipment to connect generated electricity to the grid.
Our outdoor high voltage AC vacuum circuit breaker is suitable for renewable energy collection systems, transformer protection, and distribution control applications.
The isolation function provides additional safety when engineers perform inspection or maintenance work on renewable energy systems.
Industrial plants depend on stable electrical power for production equipment, automation systems, motors, and control devices.
Unexpected electrical faults can interrupt production and increase operating costs. The ZW32-12 provides reliable protection against abnormal current conditions and helps protect important electrical assets.
For factories that require continuous operation, our intelligent vacuum circuit breaker provides a dependable medium voltage protection solution.
Rail transit systems, urban facilities, and public infrastructure require highly reliable electrical networks.
The compact structure and intelligent functions of the ZW32-12 make it suitable for outdoor distribution applications in:
Railway power systems
Metro infrastructure
Commercial buildings
Municipal electrical projects
Mining and heavy industrial environments often require electrical equipment that can operate under challenging conditions.
The durable structure and reliable protection performance of our ZW32-12 circuit breaker help improve electrical safety and support continuous industrial production.
At Jihui Electric, we believe product reliability starts from manufacturing quality. Every ZW32-12 intelligent outdoor vacuum circuit breaker follows strict production procedures from design to final inspection.
Our production process combines professional engineering experience, advanced manufacturing technology, and careful quality management.
Before production begins, our engineering team reviews electrical requirements, installation conditions, and customer application scenarios.
During product development, we focus on:
Electrical performance optimization
Mechanical reliability
Intelligent control integration
Outdoor environmental adaptability
Easy maintenance design
This approach allows us to develop products that meet real-world power system requirements.
The reliability of a vacuum circuit breaker depends heavily on component quality. We carefully select materials for key parts, including:
Vacuum interrupters
Conductive components
Insulation materials
Mechanical operating parts
Protective enclosures
Each component must meet our technical requirements before entering the production process.
The intelligent control system is an important part of the ZW32-12 series.
During assembly, our technicians carefully install and test:
Control modules
Monitoring components
Communication interfaces
Operating mechanisms
The goal is to ensure that all electrical and intelligent functions work together smoothly.
Before delivery, every circuit breaker undergoes complete testing to verify performance and safety.
| Inspection Item | Purpose | Testing Method |
|---|---|---|
| High Voltage Test | Verify insulation performance | Electrical withstand test |
| Mechanical Operation Test | Confirm switching reliability | Repeated opening and closing test |
| Isolation Function Test | Check safe separation performance | Mechanical inspection |
| Intelligent Control Test | Verify automation functions | Control and communication testing |
Source: Testing procedures are based on IEC 62271-100 high-voltage switchgear standards and Jihui Electric internal quality inspection procedures.
Electrical equipment directly affects the safety and stability of power systems. Therefore, we apply strict quality control throughout the entire manufacturing process.
Our quality management includes:
Incoming material inspection
Production process monitoring
Component performance checks
Electrical testing
Final product inspection
Jihui Electric has obtained:
ISO9001 Quality Management System Certification
ISO14001 Environmental Management System Certification
ISO45001 Occupational Health and Safety Management System Certification
These certifications support our commitment to reliable manufacturing, environmental responsibility, and safe production practices.
Jihui Electric specializes in medium and low voltage power transmission and distribution equipment up to 35kV.
Our experience covers product development, manufacturing, testing, and international project support.
We understand the challenges faced by:
Power utilities
Engineering contractors
Industrial customers
Renewable energy developers
Infrastructure companies
Choosing electrical equipment is not only about purchasing a product. Customers also need technical support during project planning and installation.
Our team provides:
Product selection guidance
Technical parameter confirmation
Application recommendations
Customized solutions
We understand that project schedules are important. According to product type, quantity, and customer requirements, we arrange production and delivery plans efficiently.
Our logistics solutions include:
Sea transportation
Land transportation
Combined transportation solutions
To ensure product safety during transportation, we use professional packaging methods.
The packaging process includes:
Moisture protection
Shock resistance
Secure fixing
Long-distance transport protection
The product provides electrical switching, fault protection, and safe isolation functions for 12kV outdoor medium voltage power systems.
The isolation function creates a safer separation point during maintenance and inspection, helping operators work more safely.
Yes. The intelligent control functions support modern distribution automation and smart grid applications.
Yes. The product is designed for outdoor environments and provides strong resistance against common environmental conditions.
Yes. We can provide customized solutions according to voltage requirements, project conditions, and customer technical specifications.
At Jihui Electric Group, our goal is to provide safe, reliable, and efficient electrical solutions for customers worldwide.
The ZW32-12 Intelligent Outdoor High Voltage AC Vacuum Circuit Breaker with Isolation combines advanced vacuum interruption technology, intelligent monitoring capability, and safe isolation design.
For power utilities, industrial users, renewable energy projects, and infrastructure developers, choosing reliable switching equipment is essential for building stable power systems.
With professional manufacturing experience, strict quality control, and complete international service, Jihui Electric is ready to support your medium voltage power distribution projects.
If you are looking for a reliable ZW32-12 Intelligent Outdoor High Voltage AC Vacuum Circuit Breaker with Isolation manufacturer, 12kV intelligent vacuum circuit breaker supplier, or outdoor medium voltage switchgear provider, we are ready to provide a suitable solution for your application.
JiHui Electric Group Co., Ltd , high-end website construction, foreign trade website construction, marketing website construction, website optimization, development websites, corporate network marketing, search engine promotion, wechat mini program, corporate mailbox, short video operation, etc.
No. 161 Jingliu Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province, China
jh.power@jihuielec.com
+86 18967711966
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