ZN63-VS1 Indoor Vacuum Circuit Breaker
2.Rated Frequency:50Hz
3.Temperature: -15℃ to +40℃
4.Humidity:Daily average: ≤95% RH (≤2.2 kPa vapor pressure)；Monthly average: ≤90% RH (≤1.8 kPa vapor pressure)
5.Altitude: ≤1000m
6.Seismic: ≤ MSK-8 intensity
7.Air Quality: No significant dust, smoke, corrosive/flammable gases, vapors, or salt spray
- Fast Delievery
- Quality Assurance
- 24/7 Customer Service
Product Introduction
1.ZN63-VS1 Indoor Vacuum Circuit Breaker: Reliable Power Protection for Modern Grids
When you need a robust solution to safeguard electrical systems from overloads and faults, the ZN63-VS1 Indoor Vacuum Circuit Breaker stands out as a top-tier choice. Designed for medium-voltage applications up to 24 kV, this breaker combines advanced vacuum interrupter technology with precision engineering. Whether you’re upgrading aging infrastructure or integrating smart grid solutions, its high breaking capacity (up to 40 kA) and compact design ensure stable performance across industries like energy, manufacturing, and renewables.
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2.Technical Specifications at a Glance
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NO. |
Parameter |
Unit |
Data |
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1 |
Rated Voltage |
kV |
12 |
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2 |
Rated Insulation Level |
1min Power Frequency Withstand Voltage |
42 |
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| Lightning Impulse Withstand Voltage |
75 |
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3 |
Rated Current |
A |
630,1250,2000,2500,3150,4000 |
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4 |
Rated Short-Circuit Breaking Current |
kA |
20,25,31.5,40,50 |
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5 |
Rated Short-Circuit Making Current (Peak) |
50,63,80,100,125 |
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6 |
Rated Peak Withstand Current |
50,63,80,100,125 |
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7 |
Rated Short-Time Withstand Current (4s) |
20,25,31.5,40,50 |
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8 |
Rated Number of Short-Circuit Breaking Operations |
次 |
50,30* |
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9 |
Rated Operating Sequence |
|
O - 0.3s - CO - 180s - CO* |
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10 |
Mechanical Life |
次 |
20000 |
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11* |
Rated Single Capacitor Bank Breaking Current |
A |
630 |
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12* |
Rated Back-to-Back Capacitor Bank Breaking Current |
400 |
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3.Why the ZN63-VS1 Excels in Demanding Environments？
1. Advanced Vacuum Interruption Technology
The ZN63-VS1 uses a vacuum arc-quenching chamber to eliminate arcing risks, ensuring faster fault interruption (<50 ms) and minimal maintenance. Unlike traditional SF6 breakers, it’s eco-friendly and ideal for indoor installations.
2. Durability for Harsh Conditions
Built to withstand humidity (≤95% RH), salt spray, and seismic activity (up to MSK-8), this breaker thrives in coastal plants, desert solar farms, or industrial facilities with heavy vibration.
3. Smart Grid Compatibility
IoT-ready variants support predictive maintenance, enabling real-time monitoring of parameters like contact wear and insulation health. This aligns with renewable energy projects requiring grid stability.
4. Space-Saving Design
With a compact footprint (1000 mm width), it easily retrofits into existing switchgear panels like KYN28A-24, reducing downtime during upgrades.
4.Where the ZN63-VS1 Makes a Difference?
Be used in a wide range of industries.
Industrial Plants
Eliminate power factor penalties in CNC machines and assembly lines while handling surge currents up to 100x rated capacity.
Substation
Stabilizes substation voltage against harmonics and intermittent generation from renewable inverters.
Commercial Buildings
Retrofit aging systems in hospitals or malls with silent (<45dB), flame-retardant capacitors that meet NFPA 70 fire codes.
5.How It Works: Simplified Reliability
The ZN63-VS1 Indoor Vacuum Circuit Breaker’s spring-operated or permanent magnetic mechanism drives its vacuum interrupter to open/close circuits. During a fault, the contacts separate within milliseconds, extinguishing arcs in the vacuum chamber. This design eliminates gas emissions and reduces wear, ensuring consistent performance.
6.Built to Last: Quality Assurance You Can Trust
- ISO 9001-Certified Production: Every component undergoes 12+ quality checks, from raw materials to final assembly.
- Rigorous Testing: Dielectric tests (65 kV), temperature cycling, and vibration simulations validate reliability.
- Patented Innovations: Proprietary contact materials enhance conductivity and thermal stability.
7.Why Partner With Us?
- 30+ Years of Expertise: Our R&D team has contributed to national projects like China’s 863 Program.
- Global Compliance: Products meet IEC standard.
- Custom Solutions: Tailor configurations for dual-voltage grids, IoT integration, or space-constrained sites.
- Certifications: 3C, ISO 14001, ISO 45001, and independent lab test reports available.
8.FAQ
Q1. Can the ZN63-VS1 replace older SF6 breakers without modifying switchgear?
Yes! Its compact dimensions and spring-operated mechanism allow seamless retrofitting.
Q2. What maintenance is required?
Annual inspections for contact wear and lubrication suffice—far less than oil-based breakers.
Q3. Is it suitable for high-altitude regions?
Absolutely. It operates efficiently up to 1000m altitude; contact us for altitude-specific derating guidance.
Q4. Do you offer dual-voltage (AC/DC) models?
Yes—customizable variants support hybrid grids and solar applications.
Q5. How long does delivery take?
Standard units ship in 2–4 weeks. Expedited options available for urgent projects.
9.Contact Us
Email xaxd_electric@163.com for quotes, technical specs, or custom project discussions. Let’s build a safer, smarter grid together!
Optimized for durability, efficiency, and compliance—the ZN63-VS1 Indoor Vacuum Circuit Breaker delivers peace of mind in every operation.
10.Factory Show
11.Equipment Display
12.Application Cases
State Grid systems, power engineering, steel and metallurgy, petrochemicals, rail transportation, energy and water conservancy, construction, environmental protection, and renewable energy sectors
13.Team and Exhibition
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