I. Overview
This series of low-voltage withdrawable switchgear is a combination cabinet type assembled by the factory using standard modules (FBA), and its technology has reached the international advanced level.
This series of low-voltage withdrawable switchgear is suitable for power plants, substations, petrochemicals, metallurgical steel rolling, transportation energy, light industry and textile enterprises, residential areas, high-rise buildings and other places. It is used for the conversion, distribution and control of electrical energy in power systems with AC frequency of 50-60Hz and rated working voltage of AC 660V and below. This device complies with the national professional standards GB72511 Low voltage switchgear and JB/T9961 Low voltage withdrawable switchgear, as well as international professional standards such as IEC439-1 and VDE0660 Part 5.


II. Environmental conditions for use
1. The ambient air temperature shall not exceed+40 ° C, not be lower than -5 ° C, and the average temperature within 24 hours shall not exceed+35 ° C;
2. Atmospheric conditions: The air is clean, with a relative humidity not exceeding 50% at a maximum temperature of+40 ° C. Higher relative humidity is allowed at lower temperatures, such as 90% at+20 ° C, but temperature changes should be taken into account There may be occasional condensation;
3. The altitude shall not exceed 2000m;
4. This device is suitable for transportation and storage at temperatures ranging from -25 ° C to+55 ° C, and can reach+70 ° C in a short period of time (not exceeding 24 hours). At these extreme temperatures, the device should not suffer any irreparable damage and should be able to function normally under normal conditions;

III. Cabinet structure
The basic structure of the switchgear cabinet is composed of C-shaped profiles assembled together. C-shaped profiles are made by bending steel plates with E=25mm as the modular installation hole. All cabinet racks and inner partitions are treated with galvanized purification. The surrounding door panels and side panels are coated with high-voltage electrostatic spraying.



IV. Switch cabinet type
1. Power distribution center cabinet (PC): Emax, MT, 3WN, AH, ME and other series circuit breakers can be used.
2. Motor Control Center Cabinet (MCC): Assembled from large and small drawers, the main switches of each circuit adopt high breaking plastic shell circuit breakers or rotary load switches with fuses. Power factor automatic compensation cabinet (with manual, automatic, and remote power factor compensation devices)
| Model | Size |
| MNS | 80*80*220cm |





MNS low-voltage withdrawable switchgear for Reliable Industrial Power Distribution
At Jihui Electric Group Co., Ltd., we specialize in the research, development, manufacturing, and service of medium and low voltage power transmission and distribution equipment. Over the years, we have worked with customers from industrial manufacturing, energy projects, infrastructure construction, and commercial facilities to provide stable and practical electrical solutions.
With the increasing demand for safe and efficient power management, companies need electrical equipment that can provide reliable performance while making operation and maintenance easier. Our MNS low-voltage withdrawable switchgear is designed to meet these requirements by combining modular structure, flexible configuration, and dependable protection functions.
As a professional electrical equipment manufacturer, we understand that switchgear is not simply a metal cabinet with electrical components inside. It is an important part of the entire power distribution system. A reliable switchgear solution helps protect equipment, reduce downtime, and improve the efficiency of daily operations.
Our MNS low-voltage withdrawable switchgear is widely used in factories, power plants, renewable energy projects, commercial buildings, data centers, transportation facilities, and industrial parks.

MNS low-voltage withdrawable switchgear is a modular low-voltage electrical distribution system designed for power distribution, motor control, and electrical protection applications.
The word "withdrawable" means that the functional electrical units inside the cabinet can be removed, replaced, or maintained independently without changing the complete switchgear structure.
Compared with traditional fixed electrical cabinets, withdrawable switchgear provides better flexibility and easier maintenance. When a specific circuit needs inspection or replacement, technicians can operate on the related unit instead of shutting down the entire system.
This design is especially valuable for factories and large facilities where continuous operation is important. Reducing maintenance time means reducing production interruption and improving overall operating efficiency.
Electrical power distribution
Motor control and management
Circuit protection
Power system monitoring
Industrial automation control
The working principle of MNS low-voltage withdrawable switchgear is based on receiving electrical energy from the incoming power source and distributing it safely to different electrical loads.
When power enters the switchgear, the incoming unit transfers electricity to the internal busbar system. The busbars then distribute electrical energy to different withdrawable functional units.
Each withdrawable unit can control different electrical circuits, such as motors, production equipment, lighting systems, and auxiliary devices.
Protection components inside the cabinet monitor electrical conditions. When abnormal situations happen, such as overload or short circuit, protective devices can disconnect the affected circuit to help prevent equipment damage.
The modular design allows users to expand or modify the system according to future requirements. This makes MNS switchgear suitable for projects that may require upgrades after installation.
During our manufacturing process, we pay close attention to every component because each part affects the long-term performance of the complete system.
The cabinet frame provides mechanical support and protection for internal electrical components. A strong structure helps improve equipment durability during transportation and operation.
The busbar system is responsible for transferring electrical energy inside the switchgear. Proper design and installation ensure stable current transmission.
The withdrawable units are the core feature of MNS switchgear. These modules can be moved in and out for inspection, replacement, and maintenance.
Depending on customer requirements, the switchgear can include circuit breakers, contactors, meters, protection devices, and control systems.
| Structure Component | Main Function | Customer Benefit |
|---|---|---|
| Cabinet Frame | Provides mechanical protection | Improves equipment durability |
| Busbar System | Transfers electrical power | Ensures stable energy distribution |
| Withdrawable Unit | Supports removable operation | Makes maintenance easier |
| Protection System | Monitors electrical conditions | Improves operational safety |
Source: Technical descriptions are based on MNS low-voltage switchgear engineering practice and Jihui Electric product design experience.


The biggest advantage of MNS switchgear is the modular withdrawable structure. Different functional units can be configured according to project requirements.
For customers, this means easier installation, faster maintenance, and better flexibility when electrical systems need future expansion.
Electrical safety is always one of our main design considerations. Our MNS low-voltage withdrawable switchgear uses reliable insulation design and protection structures to improve operating safety.
The equipment is designed for industrial environments where stable electrical performance is required every day.
Different industries have different electrical needs. A manufacturing factory may require motor control units, while a commercial project may focus more on power distribution.
Our engineering team can provide suitable configurations based on customer requirements, system parameters, and application conditions.
Maintenance efficiency directly affects operating costs. The withdrawable design allows technicians to access specific units more easily.
This reduces maintenance difficulty and helps customers keep their electrical systems running smoothly.
Based on our manufacturing experience, we believe good electrical equipment should combine safety, flexibility, and long-term reliability.
| Technical Feature | Description | Practical Advantage |
|---|---|---|
| Modular Design | Flexible functional unit arrangement | Supports different project requirements |
| Withdrawable Structure | Removable electrical modules | Reduces maintenance time |
| Reliable Protection | Protection against electrical faults | Improves system safety |
| Compact Layout | Optimized internal arrangement | Saves installation space |
Source: Performance information is based on MNS switchgear application requirements and Jihui Electric engineering standards.
Many customers ask us why they should choose withdrawable switchgear instead of traditional fixed switchgear. The main difference is flexibility and maintenance efficiency.
| Comparison Item | MNS Withdrawable Switchgear | Traditional Fixed Switchgear |
|---|---|---|
| Maintenance | Individual units can be removed | Requires more system shutdown time |
| Expansion | Flexible modular configuration | More difficult after installation |
| Operation | Convenient inspection and replacement | Requires more maintenance work |
| Application | Suitable for complex industrial systems | Mainly standard applications |
Source: Comparison based on common low-voltage switchgear application practices and engineering experience.
During our cooperation with customers from different industries, we have found that every electrical system has different challenges. Some factories need continuous power supply for production lines, while large infrastructure projects require equipment that can operate safely for many years.
Our MNS low-voltage withdrawable switchgear is designed to meet these practical needs. With its modular structure, reliable protection functions, and flexible configuration, it provides an efficient solution for various low-voltage power distribution applications.
Manufacturing plants usually include many electrical devices, such as motors, automated production lines, compressors, pumps, and industrial control systems. These loads require stable and reliable electricity to maintain continuous operation.
MNS low-voltage withdrawable switchgear helps factories distribute electrical power safely while allowing easier maintenance. When production equipment expands, additional functional units can be added according to project requirements.
Typical applications include:
Automotive production facilities
Machinery manufacturing plants
Metal processing factories
Food and beverage factories
Chemical industry facilities

Power generation projects require electrical equipment with stable performance and high reliability. Switchgear systems play an important role in controlling and distributing electricity inside power facilities.
Our MNS low-voltage withdrawable switchgear can be used in auxiliary power systems, control systems, and low-voltage distribution areas to support safe electrical operation.
With the growth of solar energy, wind power, and energy storage projects, electrical management has become more important than ever.
Renewable energy projects often require flexible electrical equipment that can adapt to changing system requirements. MNS switchgear provides a practical solution for low-voltage power distribution and control.
Commercial buildings, transportation facilities, and public infrastructure require reliable electricity for daily operation.
Our MNS switchgear can support applications such as:
Office buildings
Shopping centers
Hospitals
Airports
Rail transit facilities
Industrial parks
| Application Field | Main Electrical Requirement | MNS Switchgear Advantage |
|---|---|---|
| Manufacturing Plants | Stable power supply for machines | Flexible modules and easy maintenance |
| Energy Projects | Reliable power distribution | Strong safety and adaptability |
| Commercial Buildings | Continuous electrical operation | Organized power management |
| Infrastructure | Long-term stable operation | Durable and customizable design |
Source: Application information is based on common low-voltage electrical distribution requirements and Jihui Electric project experience.

At Jihui Electric, we believe that product quality starts from the manufacturing process. A reliable switchgear system is not created only by selecting good components. It also depends on accurate design, careful assembly, and strict inspection.
Our production process focuses on every important detail to ensure that each MNS low-voltage withdrawable switchgear unit can provide stable performance after installation.
Before production, our engineering team communicates with customers to understand project requirements, including electrical parameters, installation environment, operating conditions, and special functions.
Based on these requirements, we design a suitable switchgear configuration that matches the customer's actual application.
The reliability of electrical equipment depends heavily on material quality. Before assembly, we inspect important materials and electrical components according to our quality management procedures.
This helps reduce potential problems during operation and improves product consistency.
The cabinet structure is manufactured through professional processing methods. The frame needs to provide mechanical strength while maintaining accurate dimensions for internal component installation.
Precise cabinet manufacturing ensures better equipment assembly and long-term reliability.
During electrical assembly, our technicians install busbars, withdrawable units, protection components, control devices, and wiring systems according to engineering drawings.
Every electrical connection is checked carefully because connection quality directly affects system performance.
Before shipment, each MNS low-voltage withdrawable switchgear unit undergoes inspection and testing.
Our testing process includes:
Cabinet appearance inspection
Electrical connection inspection
Insulation performance testing
Functional operation testing
Final quality verification
| Manufacturing Stage | Main Activity | Quality Focus |
|---|---|---|
| Design | Electrical solution planning | System compatibility |
| Component Preparation | Material and part inspection | Reliable input quality |
| Assembly | Cabinet and electrical installation | Accurate manufacturing |
| Testing | Performance verification | Safe operation before delivery |
Electrical equipment works in important environments where safety and reliability cannot be ignored. For this reason, we have established strict quality management procedures throughout the entire production process.
Jihui Electric has obtained:
ISO9001 Quality Management System Certification
ISO14001 Environmental Management System Certification
ISO45001 Occupational Health and Safety Management System Certification
These certifications represent our commitment to consistent manufacturing quality, environmental responsibility, and safe production management.
Before delivery, products are inspected according to technical specifications and customer project requirements. We also provide professional protective packaging to ensure safe transportation.
Jihui Electric Group Co., Ltd. specializes in medium and low voltage power transmission and distribution equipment up to 35kV.
Our product range covers:
MNS low-voltage withdrawable switchgear
GGD low-voltage switchgear
Ring main units
Combination transformers
This complete product range allows us to provide integrated electrical solutions for different project requirements.
Every customer has different application conditions. A factory, renewable energy project, and commercial building may require different electrical configurations.
Our engineering team provides customized solutions according to:
Rated voltage requirements
Current capacity
Installation conditions
System configuration
Project technical standards
We understand that project schedules are important. Therefore, we organize production according to customer requirements and provide professional export support.
Our delivery process includes:
Production planning
Quality inspection
Protective packaging
Transportation arrangement
Technical document preparation
Our relationship with customers does not end after shipment. We continue to provide technical communication and support to help customers use equipment effectively.
We aim to build long-term cooperation with power companies, engineering contractors, equipment integrators, industrial enterprises, and infrastructure developers around the world.
MNS low-voltage withdrawable switchgear is mainly used for low-voltage power distribution, motor control, and electrical protection in industrial and commercial electrical systems.
The main advantage is easier maintenance. Functional units can be removed and inspected separately, which helps reduce maintenance time and improve system flexibility.
MNS switchgear is widely used in manufacturing plants, energy projects, commercial buildings, transportation facilities, industrial parks, and infrastructure systems.
Yes. We provide customized solutions based on customer requirements, including cabinet configuration, electrical components, technical parameters, and project standards.
We control quality through professional design, material inspection, production management, electrical testing, and final inspection before shipment. Our ISO9001, ISO14001, and ISO45001 systems support our quality management process.
Modern industries need electrical equipment that can provide stable performance, convenient maintenance, and flexible application options. Our MNS low-voltage withdrawable switchgear is designed to meet these requirements with practical engineering and reliable manufacturing.
At Jihui Electric, we combine professional experience, advanced production management, and customer support to provide dependable power distribution solutions worldwide.
Whether your project is an industrial factory, renewable energy facility, commercial building, or infrastructure system, our team can provide suitable MNS switchgear solutions according to your actual requirements.
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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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