From the perspective of practitioners: Why has the MNS pull-out type switchgear become a "favourite" in the low-voltage distribution field？
2025,12,29
As a veteran who has been working in the low-voltage distribution industry for over a decade, I recently noticed that the topic most frequently discussed among our peers is the MNS low-voltage indoor pull-out Switch Cabinet. A few days ago, when chatting with Lao Zhou, who is involved in factory power distribution projects, he started by saying, "This equipment truly solves major problems. Previously, we used traditional switch cabinets, which occupied a lot of space and were difficult to maintain. Now, switching to the MNS type is much more convenient."
In fact, what Old Zhou said is exactly what I have always felt. The pain points of traditional low-voltage switch cabinets are well-known to those in our industry: large space occupation, rigid layout, and it's very difficult to adjust when facing different electricity demands. Especially in complex scenarios such as commercial office buildings and industrial factories, it's extremely challenging to adapt. Moreover, when it comes to maintenance, it's even more troublesome. Minor issues require a lot of effort to fix, not only causing power outages but also resulting in high maintenance costs.
I asked Lao Zhou, "What aspect of this equipment do you find the most satisfactory?" Without a moment's hesitation, he replied, "Firstly, it is flexible. Secondly, it is easy to maintain. It is designed in a modular way, allowing for free combination according to actual electricity usage requirements. Whether it is paired with Dry Type Transformer or Oil Immersed Transformer, it is suitable. It is also easy to integrate with substations and compact substations to form a system, making it straightforward to do so without having to repeatedly adjust the plan as before. Secondly, it has a withdrawable structure. The switch unit can be directly withdrawn for maintenance and replacement. Previously, it took at least a whole day to repair once. Now, minor issues can be resolved within an hour, without affecting production."
When it comes to adaptability, I also added a few remarks: "I previously worked on a commercial complex project. They also used this equipment. Due to the limited space, traditional switch cabinets simply couldn't fit. The compact design of this equipment perfectly met the requirements, and it can precisely control the power output, ensuring safety as well. " Old Zhou also agreed: "Nowadays, whether it's industrial or commercial projects, efficiency and low cost are emphasized. This equipment can reduce the frequency of power outages and has significantly lowered the operation and maintenance costs. Naturally, it is very popular."
However, we would also like to remind our colleagues that when installing this equipment, sufficient maintenance space should be reserved to facilitate future maintenance. Regular inspections of the connections of equipment such as Transformers and compact substations should also be conducted to ensure their stability and reliability, so as to guarantee the stable operation of the power system.
In my opinion, the main reason why the MNS low-voltage indoor pull-out switch cabinet has become a "favourite" in the industry is that it has accurately identified the pain points of traditional equipment and solved the practical problems in application through modular and pull-out design. As the power distribution industry increasingly emphasizes efficiency and flexibility, such equipment that meets actual needs will undoubtedly gain more market recognition.
Jiangsu Kelide Electric Co., Ltd.
