Hangzhou Shone Vacuum Electrical Apparatus Co., Ltd. has specialized in vacuum interrupters and vacuum switching devices since 2004. We run our own production lines for vacuum interrupters, embedded poles and vacuum circuit breakers, supplying switchgear manufacturers across 30+ countries with IEC 62271 compliant components.
- 20+ years of vacuum switching manufacturing
- 200+ skilled employees and engineers
- Millions of vacuum interrupters per year
- ISO 9001 & IEC 62271 certified
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![N8UE1+2 Iimp50kA LV Circuit Breaker With Instruction Windows]()
N8UE1+2 Iimp50kA LV Circuit Breaker With Instruction Windows
N8UE1+2 Iimp50kA LV circuit breaker with instruction windows
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![N8UE1+2 Iimp50kA LV Circuit Breaker Surge Protector]()
N8UE1+2 Iimp50kA LV Circuit Breaker Surge Protector
N8UE1+2 Iimp50kA LV circuit breaker surge protector
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![N8UE1+2 Iimp8kA-1P Low Voltage Circuit Breaker Surge Protector]()
N8UE1+2 Iimp8kA-1P Low Voltage Circuit Breaker Surge Prot...
N8UE1+2 Iimp8kA-1P Low voltage circuit breaker Surge Protector
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![N8UE1+2 Iimp7kA-4P LV Circuit Breaker Surge Protector]()
N8UE1+2 Iimp7kA-4P LV Circuit Breaker Surge Protector
N8UE1+2 Iimp7kA-4P LV circuit breaker Surge Protector
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![24kV Pole Mounted LBS SF6 Circuit Breaker]()
24kV Pole Mounted LBS SF6 Circuit Breaker
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![Explosion-proof Multi-circuit Vacuum Electromagnetic Starter]()
Explosion-proof Multi-circuit Vacuum Electromagnetic Starter
This system is designed for coal mine environments and adjacent areas
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![Permanent Magnet Vacuum Combined Feeder Switch For Mining]()
Permanent Magnet Vacuum Combined Feeder Switch For Mining
This device is designed for use in underground coal mines and surrounding
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Explosion-proof And Intrinsically Safe Permanent Magnet V...
This device is designed for use in underground coal mines and surrounding
- Rated Voltage
- Rated Current
- Breaking Capacity
- Mechanical Life
- Epoxy & Sealing
- OEM / ODM
- Covers MV distribution classes 12kV, 24kV and 72.5kV.
- Designed and verified to IEC 62271.
- Custom voltage ratings available on request.
- Standard ratings from 630A up to 4000A.
- High-current vacuum interrupter variants available.
- Low-contact-resistance copper alloys.
- Rated breaking current up to 50kA.
- Rated making capacity and short-time withstand.
- Stable arc control inside the vacuum bottle.
- Long-life contacts rated for 30,000 operations.
- Low maintenance for the switchgear lifetime.
- Endurance verified by routine testing.
- APG cast epoxy embedded poles.
- Hermetic ceramic-to-metal sealing.
- Anti-tracking, moisture-proof insulation.
- Engineering drawings within 24 hours.
- Private-label and co-development.
- Flexible MOQ for switchgear brands.
Proven reliability for grid distribution and primary substations up to 40.5 kV.
Fast, low-maintenance switching keeps solar and wind collections online in harsh environments.
Rugged interrupters withstand dust, vibration and frequent switching cycles.
Private-label VIs and VCBs help panel builders shorten lead times and protect their brand.
IEC/ISO documentation and multilingual support for switchgear partners worldwide.
- Factory
- Team
- Quality
- Service
- • Since 2004
- • 200+ employees
- • Exported to 30+ countries
- • Millions of units per year
- • 50+ technicians
- • Drawings within 24 hours
- • Flexible programs by industry
- • Lean cost, competitive price
- • Imported raw materials
- • 30,000-operation life
- • Full type testing
- • Traceable quality control
- • Quotation within 24 hours
- • OEM & ODM service
- • Fast delivery
- • Reliable after-sales
