Claire
Mr.Fu
Claire
China VS1-12C Indoor High-Voltage Side-Mounted Vacuum Circuit Breaker Suppliers and Factory for Reliable Power Protection
Type Designation
| 1 | Vacuum Circuit Breaker (VCB) |
| 2 | Design Number |
| 3 | Rated Voltage (kV) |
| 4 | Side-mounted |
| 5 | Rated Current (A) |
| 6 | Rated Short-circuit Breaking Current (kA) |
Normal Use Environment
◆ Ambient air temperature: upper limit +40°C, lower limit -15°C;
◆ Daily average relative humidity of air not more than 95%, monthly average not more than 90%;
◆ Altitude: ≤2000m;
◆ Seismic intensity: not exceeding 8 degrees;
◆ Locations without fire, explosion hazard, severe pollution, chemical corrosion, and violent vibration.
Note: If clients have any special requirements, they may propose them when placing orders, and we will do our utmost to meet their needs.
Product Display
Technical Parameters
| Item | Unit | Parameter | ||||
| Rated Voltage | kV | 12 | ||||
| Maximum Operating Voltage | kV | 12 | ||||
| Rated Current | A | 630 | 1250 | 1600 | ||
| Rated Short-Circuit Breaking Current | kA | 20 | 25 | 31.5 | ||
| Rated Short-Circuit Making Current | kA | 50 | 63 | 80 | ||
| Rated Peak Withstand Current | kA | 50 | 63 | 80 | ||
| 4S Rated Short-Time Withstand Voltage | kA | 20 | 25 | 31.5 | ||
| Rated Operating Sequence | O-0.3s-CO-180s-CO | |||||
| Rated Insulation Level | Power-Frequency Withstand Voltage (Before and After Rated Breaking) | kV | 42 (section 48) | |||
| Impulse Withstand Voltage (Before and After Rated Breaking) | 75 (section 85) | |||||
| Mechanical Life | time | 10000 | ||||
| Rated Short-Circuit Current Breaking Operations | time | 50 | ||||
| Operating Mechanism Rated Closing Voltage (DC) | V | 110, 220 | ||||
| Operating Mechanism Rated Opening Voltage (DC) | V | 110, 200 | ||||
| Contact Gap | mm | 11±1 | ||||
| Over-Travel (Contact Spring Compression Length) | mm | 4.5±0.5 | ||||
| Three-Phase Contact Bounce Time (During Opening/Closing) | ms | ≤2 | ||||
| Contact Bounce Time During Closing | ms | ≤2 | ||||
| Average Opening Speed | m/s | 0.9±1.2 | ||||
| Average Closing Speed | m/s | 0.4±0.8 | ||||
| Opening Time | At Maximum Operating Voltage | s | ≤0.05 | |||
| At Minimum Operating Voltage | ≤0.08 | |||||
| Closing Time | s | 0.1 | ||||
| Resistance of Each Main Circuit | uΩ | 60 | 50 | |||
Outline and Installation Dimension
Frequently Asked Questions
What is the rated voltage of the VS1-12C Vacuum Circuit Breaker?
The VS1-12C has a rated voltage of 12 kV, with a maximum operating voltage also at 12 kV, making it suitable for medium-voltage indoor high-voltage distribution systems.
What rated current options are available for the VS1-12C?
The VS1-12C is available in three rated current options: 630 A, 1250 A, and 1600 A, with corresponding rated short-circuit breaking currents of 20 kA, 25 kA, and 31.5 kA respectively.
What are the normal environmental conditions for installing the VS1-12C?
The VS1-12C should be installed in locations where the ambient temperature is between -15°C and +40°C, altitude does not exceed 2000 m, seismic intensity is no more than 8 degrees, and there is no fire, explosion hazard, severe pollution, chemical corrosion, or violent vibration.
What is the mechanical life of the VS1-12C Vacuum Circuit Breaker?
The VS1-12C has a mechanical life of 10,000 operations, and it supports up to 50 rated short-circuit current breaking operations, ensuring long-term reliability in demanding applications.
What operating mechanism voltage does the VS1-12C support?
The VS1-12C supports a DC closing voltage of 110 V or 220 V and a DC opening voltage of 110 V or 200 V, providing flexibility for various control system configurations.
Can the VS1-12C be customized for special installation requirements?
Yes. If clients have special requirements beyond standard specifications — such as different environmental conditions or custom dimensions — they may propose them when placing orders, and the manufacturer will do its utmost to meet those needs.