We are recruiting high-quality global distributors for power and new energy products. We offer exclusive competitive prices, one-stop premium services covering pre-sales consultation, in-sales guidance and after-sales support, and extended warranty periods beyond industry norms, plus technical training and targeted marketing resources to help you expand local markets and maximize profits. Join us for a win-win power supply market future! With 20 years of industry experience, we specialize in manufacturing large-scale power equipment and new energy products that meet national standards. We provide standardized and customized solutions for residential and industrial scenarios, and strict quality control ensures reliable product performance, laying a solid foundation for your business expansion and customer trust.
QS KBS-12 Box-type Fixed Metal-enclosed Switchgear (referred to as ring network switchgear) is an AC high-voltage complete switchgear device with a rated voltage of 12kV and a rated frequency of 50Hz. It is mainly used in three-phase AC ring networks, terminal distribution networks and industrial electrical equipment, undertaking the functions of receiving, distributing electrical energy, etc. It is also suitable for being installed in box-type substations.
Important Notice:
Note that the above parameters apply solely to standard versions of the product. For additional technical specifications, feel free to consult our team.
Serial No.
Item
Unit
Technical Parameters (FN12-10)
Technical Parameters (FN25-12)
1
Rated Voltage
kV
12
12
2
1min Power Frequency Withstand Voltage
kV
42 (To Ground and Between Phases); 48 (Isolation Breaker)
-
3
Lightning Impulse Withstand Voltage
kV
75 (To Ground and Between Phases); 85 (Isolation Breaker)
-
4
Rated Frequency
Hz
50
50
5
Rated Current of Main Busbar
A
630
630
6
Load Switch
Rated Current
A
630
630
7
Load Switch
Electrical Life at Rated Current
Times
Not Less Than 100
-
8
Load Switch
Breaking Capacity of No-load Transformer
kV/A
1250
-
9
Load Switch
Rated Thermal Stable Current
kA/s
20/4; 20/2 (Earthing Switch)
-
10
Load Switch
Rated Dynamic Stable Current (Peak)
kA
50
-
11
Load Switch
Rated Short-circuit Making Current (Peak)
kA
50
-
12
Combination Apparatus
Fuse Rated Current
A
100
-
13
Combination Apparatus
Rated Transfer Current
A
1500
2000
14
Combination Apparatus
Rated Short-circuit Breaking Current
kA
31.5
-
15
Combination Apparatus
Fuse Model Matched
-
S-LAJ-12(XRNT-10)
-
16
Mechanical Life
Times
2000
10000
17
1min Power Frequency Withstand Voltage of Auxiliary Circuit
kV
2
-
18
Operating Voltage of Electric Operating Mechanism
V
AC/DC 220; 110
-
19
Protection Class
-
IP20
-
20
Overall Dimensions (W×D×H)
mm
650(850)×900×2000(2200)
-
QS KBS-12 12kV Ring Main Unit is ideal for diverse power distribution scenarios—from stable ring network supply in urban grids and reliable terminal distribution for industrial parks/commercial zones, to emergency backup during grid faults and efficient energy allocation that cuts unnecessary losses. Backed by CE/IEC-compliant, strict industrial-grade end-to-end quality control, it delivers a complete efficient distribution cycle , making power distribution more reliable, efficient and safe.
We are a professional enterprise engaged in the manufacturing and construction of large-scale power equipment and new energy power. For the past 20 years, we have focused on a series of power products such as ring main units, distribution cabinets, transformers, photovoltaic panels, energy storage, inverters, etc.
Equipped with robust packaging solutions and streamlined logistics networks, we ensure safe, damage-free delivery of products to every destination, backed by reliable tracking and timely transportation services.
About Us
With 20 years of industry focus, we are a professional enterprise engaged in large-scale power equipment manufacturing and new energy power project construction, offering a full range of products including ring main units, distribution cabinets, transformers, photovoltaic panels, energy storage systems and inverters.
Our production lines integrate advanced technology and exquisite craftsmanship to ensure all products comply with national electricity standards. We provide comprehensive standardized and customized solutions to meet the specific power needs of both residential and commercial facilities.
Reliability is our core. We use high-quality raw materials, implement strict quality inspections and optimize production efficiency to guarantee on-time delivery. Beyond products, we act as your trusted partner—listening to your demands, solving challenges and growing alongside your business.
Join our numerous loyal customers and trust us for the security and stability of your power system and new energy supporting product needs.
Every interaction is a testament to mutual trust, collaborative potential, and shared success in the power and new energy field.
Frequently Asked Questions
Q: Are you a factory or a trading company?
A: We are a professional manufacturer of ring main units, distribution cabinets, transformers, photovoltaic panels, energy storage, inverters and other series of power equipment and new energy products.
Q: How can we guarantee the products quality?
A: We always provide esteemed buyers with a pre-production sample before mass production; we also conduct strict testing on every product prior to shipment dispatch.
Q: What products we can supply you?
A: We can supply a full range of power and new energy products including ring main units, distribution cabinets, transformers, photovoltaic panels, energy storage, inverters and more.
Q: Where is your manufacturer located? How can I visit there?
A: Our factory is located in China. You can coordinate with our team in advance to arrange a visit.
Q: Can the products pricing be cheaper?
A: Of course, we can offer you a very favorable discount for large-quantity orders.
Q: Can you print our logo on the products?
A: Yes! We also accept OEM & ODM orders for all our power and new energy products.
Zeno Electric
