ZN63(VS1)-12 Indoor 12KV 1250A vacuum circuit breaker vcb for ring main unit fixed lateral type
Product overviewThe ZN63IVS1)-12 indoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz switchgear with a rated voltage of 7.2kV. It serves as a protective and control unit for power equi
The ZN63IVS1)-12 indoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz switchgear with a rated voltage of 7.2kV. It serves as a protective and control unit for power equipment in power grid installations and industrial enterprises. The circuit breaker adopts an integrated design, capable of functioning as a fixed installation unit or being mounted on a chassis to form a mobile unit.
This circuit breaker complies with the requirements of GB1984 "AC High Voltage Circuit Breakers," JB3855-1996 "3.6-40.5kV Indoor AC High Voltage Vacuum Circuit Breakers," and DJ403-91 "10-35kV Indoor AC High Voltage Circuit Breaker Technical Conditions for Ordering" as well as relevant provisions of IEC5687 publications.
Using the environment conditions
Ambient air humidity: cap + 40 ° ℃, lower limit - 15 ° ℃
* height: < 1000 m (if need higher elevation, the rated insulation level increase)
Amplitude: the earthquake intensity is not more than 8 degrees
Air relative humidity, average no greater than 95%, on average no greater than 90%
No fire and explosion danger, serious pollution, chemical corrosion and the site of violent vibration.
Specification
Item
Description
Unit
Data
1
Rated voltage
KV
12
2
Max. voltage
KV
12
3
Rated current
A
630/1250/2000A4000
4
Rated short circuit breaking current
KA
20/25/31.5/40
5
Rated short circuit making current
KA
50/63/80/100
6
Rated peak withstand current
KA
50/63/80/100
7
4S Rated withstand current
KA
20/25/31.5/40
8
Rated insulation level
Power frequency voltage(when losing a circuit)
KV
Dreaker 42
Impulse withstand voltage(when losing a circuit)
Dreaker 75
9
Rated operating sequence
OC-0.3s-CO-180S-CO
10
Mechanical life
Times
20000
11
Rated short circuit current breaking time
Times
50
12
Rated close brake voltage of operating machnie
V
110,220
13
Rated break brake voltage of operating machnie
V
110,220
14
Contact stroke
mm
11±1
15
Exceed range(the compress length of contact sping)
mm
3.5±0.5
16
Different period of three-phase break and close break
ms
≤2
17
The jump time of contact close break
ms
≤2
18
Average break speed
m/s
0.9~1.2
19
Average closing speed
m/s
0.5~0.8
20
opening time
Ubder max.operating voltage
S
≤0.05
Under min.operating voltage
≤0.08
21
Closing time
s
0.1
22
Resistance of each phase main loop
μΩ
≤40
23
Contacts limit ersion
mm
3
Detailed Photos
Installation dimensions
Packing details
by strong wood box
OEM can be customized as required on the box.
Buy Guide
1.Determine the rated voltage
2.Determine breaking capacity
3.Determine the rated current
4.Determine the installation method (A: handcart type B: fixed type)
5.Determine installation size
Production Workshop
Welcome to visit the factory for guidance at any time.
How to order and buy vacuum circuit breakers
1.The price of vacuum circuit breakers depends on technical parameters
2.additional functions
3.quantities
4.delivery region
Our Services:
1.Consulting services: Providing customers with information about characteristics, specifications, equipment selection and assistance in decision making.
2.Technical support: According to customer needs and local conditions, appropriate technical support is provided, including technical surveys, technical solutions, etc.
3.Pricing Services: Detailed commercial proposals and discount programs are provided according to client requirements.
4. After-sales service: Installation, debugging and training are provided, ensuring the normal commissioning of the equipment.
If you have any questions, please contact us, we provide online services 24 hours a day.
We warmly welcome international clients to our facility. During their visit, they have the opportunity to tour our production workshops and witness firsthand the manufacturing and testing processes of transformers and switchgear equipment.
By observing our modern production capabilities, strict quality control, and professional technologies, clients gain a deeper understanding of our expertise and reliability. These visits not only strengthen trust but also lay a solid foundation for long-term cooperation and mutual development.
Our Participation in Exhibitions
We actively participate in leading industry exhibitions, showcasing our high-quality electrical solutions, innovative technologies, and reliable equipment. At our company booths, visitors can explore new products in detail, receive professional consultations, and discuss potential collaboration opportunities. Our experts are always ready to share their experience and demonstrate the advantages of our solutions.
About Us
Chenyuan Electric is a rapidly growing company with over 15 years of experience in the production and service of electrical power equipment. We are your reliable partner in the field of electrical installation equipment!
In 2019, we established a strategic partnership with Schneider Electric. Gradually expanding our production capacity, we provide comprehensive support for business development. Our factory includes multiple automated production workshops and fully equipped warehouse facilities. The modern European equipment installed in our workshops allows us to manufacture products that meet EU standards.
We hold CE, ISO, and EAC certifications. Our company is an official Schneider Electric partner, authorized to sell original equipment and produce Schneider-certified switchgear cabinets.
We invite you to visit our factory to discuss cooperation and explore potential partnership opportunities.
In the capital of Uzbekistan, Tashkent, we operate an official representative office (a Chinese company with 100% foreign capital). Our team includes qualified engineers ready to provide prompt consultation and offer optimal one-stop solutions.
Thanks to years of development, we have established a professional overseas service team, enabling us to respond quickly to customer requests. We continuously improve our cooperation approach, offering consultation during preliminary negotiations, production monitoring, after-sales service, and customized solutions.
Our core principle is: quality first, reputation foremost. We sincerely look forward to long-term and mutually beneficial cooperation!
Industry Solutions
We are a key supplier for major state projects, such as the State Power Grid Corporation, the State Railway Administration, and the South-to-North Water Diversion Project. Our products are widely used in power systems, state projects, mining, metallurgy, real estate, and renewable energy sectors. Additionally, our products are exported to countries including Russia, Kazakhstan, Tajikistan, Uzbekistan, and others.
Certifications
All transformers have passed CE, IEC, GOST, and other certifications.
