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.
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No.
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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
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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
Equip your business with long-lasting switchgear components that respond to your needs and smoothen electrical operations at affordable costs.
Since 2011, Liyond has been dedicated to designing and manufacturing reliable and superior switchgear components, whilst providing impactful solution to customers all over the world.
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