Wholesale VSY1-12GD Mounted Vacuum Circuit Current Breaker VCB Suppliers, Factories
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Wholesale VSY1-12GD Mounted Vacuum Circuit Current Breaker VCB Suppliers, Factories

Wholesale VSY1-12GD Mounted Vacuum Circuit Current Breaker VCB Suppliers, Factories

The VSY1-12 Mounted Vacuum Circuit Current Breaker is designed for 12kV systems with a rated current up to 2000A and breaking capacity of 31.5kA. This VSY1-12 Mounted Vacuum Circuit Current Breaker operates reliably in temperatures from -15°C to +40°C and altitudes up to 1000m, with optional insulation for higher elevations. It withstands high humidity and seismic activity up to intensity 8. Featuring fast operation and spring energy storage mechanism, the VSY1-12 Mounted Vacuum Circuit Current Breaker ensures safe performance with minimal maintenance in stable, non-hazardous environments.

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Product Description

Type Designation

Brand: MINGRI
Product Name: Three-Position Vacuum Circuit Breaker
Model: VSY1-12
Rated Voltage: 12kV
Rated Current: 630A
Peak Withstand Current: 20KA
Energy Storage Time: ≤15S
Operating Temperature: -10℃ - 40℃

Normal Use Environment

Suitable for ambient temperatures from -15°C to +40°C and altitudes up to 1000m (with adjustable insulation for higher elevations). Withstands high humidity (95% daily, 90% monthly averages) and seismic activity up to intensity 8. Designed for use in environments free from explosion, severe pollution, chemical corrosion, and excessive vibration.

Technical Parameters

No. Item Unit Value
1 Rated Voltage kV 40.5
2 Rated Current A 125,016,002,000
3 Rated Short-Circuit Breaking Current kA 31.5
4 Rated Peak Withstand Current kA 80
5 Rated Short-Time Withstand Current kA 31.5
6 Rated Short-Circuit Making Current kA 80
7 Rated Single Capacitor Bank Breaking Current A 630
8 Rated Back-to-Back Capacitor Bank Breaking Current A 400
9 Rated Short-Circuit Current Breaking Operations time 20
10 Rated Operating Sequence O-0.3s-CO-180s-CO
11 Rated Lightning Impulse Withstand Voltage (Peak) kV 185
12 Rated Short-Time Power-Frequency Withstand Voltage (1min) kV 95
13 Closing time ms 65±15
14 Opening time ms 40±15
15 Mechanical Life time 10000
16 Rated Voltage of Energy Storage Motor V AC220;DC220,110
17 Energy Storage Time s ≤15
18 Rated Voltage of Closing Solenoid V AC220;DC220,110
19 Rated Voltage of Opening Solenoid V AC220;DC220,110
20 Rated Current of Auxiliary Switch A AC10,DC5

Product Display

VSY1-12GD Mounted Vacuum Circuit Current Breaker
VSY1-12GD Mounted Vacuum Circuit Current Breaker-2

Outline and Installation Dimension

VSY1-12-3

Frequently Asked Questions (FAQ)

Q1: What is the primary function of the VSY1-12 circuit breaker?
The VSY1-12 is a three-position vacuum circuit breaker engineered for reliable circuit protection and operation in medium-voltage electrical networks, providing disconnection, testing, and operational isolation.
Q2: Can the VSY1-12 be deployed at higher altitudes?
Yes, while standard use is rated for altitudes up to 1000 meters, insulation configurations can be customized to adapt reliably to higher altitude requirements.
Q3: What are the control voltage options for the energy storage motor?
The motor and closing/opening solenoids support flexible control options, fully compatible with AC220V, DC220V, and DC110V systems.
Q4: What is the expected mechanical lifespan of this vacuum circuit breaker?
The equipment delivers a mechanical life of at least 10,000 operations under standard operating conditions.
Q5: How does the breaker perform in humid or seismic environments?
It is designed to withstand seismic forces up to intensity 8 and sustain high relative humidity conditions of up to 95% daily and 90% monthly averages.

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