Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
ZN63A-12 VS1 Vacuum Circuit Breaker: 12kV/24kV 4000A indoor high voltage VCB, embedded poles, KYN28A/XGN switchgear, solid-sealed poles, E2/M2 life, free maintenance, 40kA breaking, 10000 cycles, -15°C to +40°C.
Advanced ZN63A-12 (VS1) Vacuum Circuit Breaker Series: Premium indoor high voltage vacuum circuit breaker designed for control and protection of substations and electrical equipment, rated voltage 12kV/24kV, three-phase AC 50Hz power system, matches with switchgear panel KYN28A and XGN, suitable for industrial/mining enterprises, power plants, substations, delivering 630-4000A rated current, 20-40kA short-circuit breaking, 50-100kA short-circuit closing (peak), 10000 mechanical life cycles, 50 rated short-circuit breaking/closing times, main conductive circuit adopts embedded poles (solid-sealed poles) utilizing international brand vacuum interrupter and main conductive circuit parts solid-sealed into whole, E2 electrical life, M2 mechanical life.
Embedded Poles and Free Maintenance Ready: ZN63A-12 (VS1) incorporates embedded poles technology protecting interrupter from impact, dust and condensation effects, greatly improves insulation reliability, mechanical and breaking performance, realizes free-maintenance and longer mechanical/electrical life, operating mechanism integrated with circuit breaker body verified by type tests, strong environmental adaptability, greatly reduces operation and maintenance costs, operating at -15°C to +40°C, altitude ≤2000m, providing reliable vacuum circuit breaking solution for substations, industrial/mining enterprises, power plants, frequent operations, multiple short-circuit interruptions.
| ZN63A-12 (VS1) Vacuum Circuit Breaker Specifications | VS1-12 (20/25kA) | VS1-12 (31.5kA) | VS1-12 (40kA) | VS1-24 | Unit |
| Brand | Bepto Insulation Systems | – | |||
| Model Number | ZN63A-12 (VS1-12) | VS1-24 | – | ||
| Product Type | Indoor High Voltage Vacuum Circuit Breaker (VCB) with Embedded Poles (Solid-Sealed Poles) for KYN28A/XGN Switchgear | – | |||
| Core Technology | Embedded Poles (Solid-Sealed Poles) + International Brand Vacuum Interrupter + Main Conductive Circuit Parts Solid-Sealed into Whole + Spring Mechanism + E2 Electrical Life + M2 Mechanical Life + Free Maintenance | – | |||
| Switchgear Compatibility | KYN28A, XGN Switchgear Panel | – | |||
| Rated Voltage | 12 | 24 | kV | ||
| Maximum Working Voltage | 12 | 24 | kV | ||
| Rated Frequency | 50 | Hz | |||
| Rated Current | 630, 1250 | 630, 1250, 1600, 2000 | 1250, 1600, 2000, 2500, 3150, 4000 | 630, 1250, 1600, 2000, 2500 | A |
| Rated Short-Circuit Breaking Current | 20/25 | 31.5 | 40 | 20, 25, 31.5 | kA |
| Rated Short-Circuit Closing Current (Peak) | 50/63 | 80 | 100 | 50, 63, 80 | kA |
| Rated Withstand Current (Peak) | 50/63 | 80 | 100 | 50, 63, 80 | kA |
| 4s Rated Short-Time Withstand Current | 20/25 | 31.5 | 40 | 20, 25, 31.5 | kA |
| Rated Insulation Level – Industrial Frequency Withstand Voltage (1 min) | 42/48 | 65 | kV | ||
| Rated Insulation Level – Lightning Impulse Withstand Voltage (Peak) | 75/85 | 125 | kV | ||
| Rated Operation Sequence | O-0.3s-CO-180s-CO | – | |||
| Mechanical Life (M2 Level) | 10000 | cycles | |||
| Electrical Life (E2 Level) | Yes (E2 Level Electrical Life) | – | |||
| Rated Short-Circuit Breaking/Closing Times | 50 | 20 | times | ||
| Rated Short-Circuit Duration | 4 | s | |||
| Operating Mechanism Rated Voltage | AC/DC 110, 220 | V | |||
| Motor Energy Storage Rated Voltage | AC/DC 110, 220 | V | |||
| Motor Power Rating | 70 | W | |||
| Energy Storage Time | ≤15 | s | |||
| Switching Distance of Contact | >11 | mm | |||
| Overtravel (Contact Spring Compression Length) | 4±0.5 | mm | |||
| Three-Phase Breaking/Closing Asynchronism | <2 | ms | |||
| Contact Closing Bounce Time | <2 | ms | |||
| Average Breaking Speed | 0.9-1.2 | 0.9-1.7 | m/s | ||
| Average Closing Speed | 0.5-0.8 | 0.6-1.0 | m/s | ||
| Breaking Time (Highest Operating Voltage) | <0.05 | s | |||
| Breaking Time (Lowest Operating Voltage) | <0.08 | s | |||
| Closing Time | <0.1 | 35-70 | s/ms | ||
| Main Circuit Resistance | <45 | μΩ | |||
| Allowance Accumulated Wear Thickness of Contact | 3 | mm | |||
| Single Capacitor Bank Breaking Current | 630 | A | |||
| Back-to-Back Capacitor Bank Breaking Current | 400 | A | |||
| Two Circuit Power Frequency Withstand Voltage | 2000 | V | |||
| Ambient Temperature (Maximum) | +40 | °C | |||
| Ambient Temperature (Minimum) | -15 | -10 | °C | ||
| Relative Humidity (Daily Average) | ≤95 | % | |||
| Relative Humidity (Monthly Average) | ≤90 | % | |||
| Saturated Vapor Pressure (Daily Average) | ≤2.2 | kPa | |||
| Saturated Vapor Pressure (Monthly Average) | ≤1.8 | kPa | |||
| Altitude | ≤2000 | ≤1000 | m | ||
| Earthquake Intensity | ≤8 degrees | – | |||
| Environmental Conditions | No Dust, Smoke, Corrosive/Flammable Gas, Vapor, Salt Spray Pollution; No Fire, Explosion, Serious Filth, Chemical Corrosion, Violent Vibration | – | |||
| Embedded Poles (Solid-Sealed Poles) | Yes (International Brand Vacuum Interrupter + Main Conductive Circuit Parts Solid-Sealed into Whole) | – | |||
| Protection from Impact/Dust/Condensation | Yes (Protects Interrupter from Impact, Dust and Condensation Effects) | – | |||
| Improves Insulation Reliability | Yes (Greatly Improves Insulation Reliability, Mechanical and Breaking Performance) | – | |||
| Free Maintenance | Yes (Realizes Free-Maintenance and Longer Mechanical/Electrical Life) | – | |||
| Integrated Design | Yes (Operating Mechanism Integrated with Circuit Breaker Body, Verified by Type Tests) | – | |||
| Strong Environmental Adaptability | Yes (Strong Environmental Adaptability, Greatly Reduces Operation and Maintenance Costs) | – | |||
| Standards Compliance | IEC62271-100, IEC Standard, National Standards | – | |||
| Key Advantages | Embedded Poles, Solid-Sealed Poles, KYN28A/XGN Switchgear, E2/M2 Life, Free Maintenance, 10000 Cycles, Impact/Dust/Condensation Protection, Insulation Reliability, Integrated Design, Strong Environmental Adaptability | – | |||
| Primary Applications | Substations, Industrial and Mining Enterprises, Power Plants, Control and Protection of Electrical Equipment, Power Grid Equipment, Frequent Operations, Multiple Short-Circuit Interruptions, Switching Various Loads of Different Nature | – | |||
Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.
Bepto focuses on the global market and provides our clients with products suitable for the local market:
Unwavering in our dedication to customers and delivering cutting-edge innovations,Bepto stands as your steadfast ally on the journey ahead.
