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Home > Circuit Breaker > High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies
High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies
High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies
High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies
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High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies
High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies
High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies

High-Quality VSY2-12GD Miniaturized Three-Position High Voltage Vacuum Circuit Breaker Manufacturers, Companies

VSY2-12GD is a compact three-position high-voltage vacuum circuit breaker designed for 12kV power distribution systems. It integrates a disconnector, load switch, and earthing switch in one unit with a highly insulated vacuum arc-extinguishing structure, delivering strong electrical performance and reliable operation. Equipped with complete mechanical interlocks, it ensures full compliance with switchgear five-prevention requirements for enhanced operational safety. Supporting flexible manual and motorized operation, it features a visible break after opening, stable short-circuit protection, and long mechanical endurance. Its small size, lightweight design, and flexible installation make it ideal for compact switchgear applications.

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Product Description

Main Features
  • Adopts vacuum arc-extinguishing composite insulation structure, featuring high insulation level and excellent electrical performance.
  • Integrates disconnector, load switch and earthing switch in one unit, featuring compact structure, small size and light weight.
  • Flexible installation methods, with optional operation modes: manual, motorized, and manual closing & electrical opening.
  • Adopts rotary disconnector with visible break after opening.
  • The load switch equipped with fuses has short-circuit protection function and can replace conventional circuit breakers.
  • Mechanical interlocks are set between the disconnector, load switch and earthing switch to meet the "five-prevention" requirements of switchgear.
Technical Parameters
No. Name Unit Load Switch Combined Electrical Apparatus
1 Rated Frequency Hz 50 50
2 Rated Voltage kV 12 12
3 1min Power Frequency Withstand Voltage kV 42kV (phases/ground/vacuum) / 48kV (isolation) Same as left
4 Rated Lightning Impulse Withstand Voltage (Peak) kV 75kV (phases/ground/vacuum) / 85kV (isolation) Same as left
5 Rated Current A 630 Max rated current of fuse: 125, 200
6 Rated Short-circuit Breaking Current kA - 31.5
7 Rated Active Load Breaking Current A 630 -
8 Rated No-load Transformer Breaking Current - 63 -
9 Rated Closed-loop Breaking Current A 630 -
10 Rated Short-time Withstand Current (4s) kA 25 -
11 Rated Peak Withstand Current kA 63 -
12 Rated Short-circuit Making Current (Peak) kA 50 50
13 Rated Transfer (Make) Current A 1700 (3150) Same as left
14 Mechanical Endurance Times 10000 Same as left
Product Display
Miniaturized High Voltage Vacuum Circuit Breaker inside
Miniaturized High Voltage Vacuum Circuit Breaker
Outline and Installation Dimension
Outline Dimension Drawing

Outline Dimension Drawing of VSY2-12GD Front Mounting & Right Operation

FAQs
Q1: What are the main components integrated into this unit?
The unit integrates a disconnector, a load switch, and an earthing switch into a single, compact unit to save space and reduce weight.
Q2: What is the benefit of the vacuum arc-extinguishing structure?
It provides a high level of insulation and ensures excellent electrical performance and reliability during operation.
Q3: Can this load switch replace traditional circuit breakers?
Yes, when equipped with fuses, the load switch provides short-circuit protection, making it a viable alternative to conventional circuit breakers in specific applications.
Q4: What safety measures are in place for operation?
It includes mechanical interlocks between the disconnector, load switch, and earthing switch to meet the "five-prevention" safety requirements of switchgear.
Q5: What are the available operation modes?
The equipment supports flexible operation modes, including manual, motorized, and a combined manual closing with electrical opening mode.
Q6: What is the mechanical endurance of the VSY2-12GD?
The unit is designed for high durability, with a mechanical endurance rated at 10,000 operations.

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