The VS1-12/4000-275 vacuum circuit breaker is a high-performance medium-voltage switchgear component, engineered for demanding industrial and distribution applications requiring reliability, efficiency, and superior safety.
Product Highlights:
Superior Breaking Performance: Employs advanced vacuum interrupter technology to achieve safe, reliable arc extinction, ensuring secure electrical circuit protection even in challenging conditions.
Ease of Maintenance: The draw-out structure allows quick and straightforward access for maintenance or replacement, reducing downtime and associated costs.
Smooth and Stable Operation: The VS1 spring-operated mechanism provides precise, responsive switching performance, designed to meet the highest industry standards.
Enhanced Insulation Properties: The use of an insulated cylinder design improves overall dielectric strength, providing robust isolation and reducing the risk of breakdowns due to environmental factors.
High Adaptability: Versatile for a wide range of industrial applications, including power distribution, manufacturing facilities, mining operations, and large infrastructure projects where high current and strong short-circuit breaking capacity are essential.
No.
|
Item
|
Unit
|
Data
|
|
1
|
Rated voltage
|
kV
|
12
|
|
2
|
Rated frequency
|
Hz
|
50
|
|
3
|
Rated insulation level
|
1min power frequency withstand voltage
|
kV
|
42
|
Rated lightning impulse withstand voltage
|
kV
|
75
|
||
4
|
Rated current
|
A
|
630/1000/1250/1600/2000/
2500/3150/4000
|
|
5
|
Rated short circuit breaking current
Rated short-time withstand current (virtual value)
|
kA
|
20/25/31.5/40/50
|
|
6
|
Rated short circuit making current
Dynamic stability rated current
|
kA
|
50/63/80/100/125
|
|
7
|
Rated short-circuit breaking current breaking time
|
Times
|
(above 40kA)
|
|
8
|
Rated short-circuit duration
|
S
|
4
|
|
9
|
Rated operation sequence
|
|
O-0. 3s-CO-180s-CO,
O-180s-CO-180s-CO(above 40kA)
|
|
10
|
Mechanical life
|
Times
|
30000
|
|
11
|
Rated breaking current of single capacitor bank
|
A
|
630
|
|
12
|
Rated breaking current of back to back capacitor bank
|
A
|
400
|
|
13
|
Maximum D.C componen
|
|
50%
|
Dimensions for reference