Vs1 Zn63A High Voltage Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: ZN63A VS1
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: CE
• Service: OEM
• Warranty: 18 Month
• Name: Vacuum Circuit Breaker
• Delviery Time: 7 Days
• Transport Package: Crate
• Specification: 65x38x45cm
• Trademark: CNRUIHUA
• Origin: China
• HS Code: 8537209000
• Production Capacity: 50000PCS/Year
• Package Size: 65.00cm * 38.00cm * 45.00cm
• Package Gross Weight: 95.000kg

Product Description

 High voltage indoor vacuum circuit breaker

CNRUIHUA 20+ Years of Expertise in High-Voltage Switchgear
Made in China | Global Export Experience
 

Product Description

 

The ZN63A-12 Indoor Vacuum Circuit Breaker is an intelligent switching device designed for 6kV~12kV power systems, utilizing 3rd-generation vacuum arc-extinguishing technology. Compliant with GB/T 1984 and IEC 62271 standards, it delivers high-precision switching control and reliable short-circuit protection for industrial plants, substations, data centers, and more.
 

Our Advantages

OEM service

Factory directly sales

Ultra-Long Lifespan | 20,000 mechanical operations with CuCr50 alloy contacts, resistant to arc erosion. Maintenance-free design.

Smart Operation | Optional spring-operated or permanent magnetic actuator, breaking time ≤45ms, suitable for frequent switching (e.g., capacitor banks 50+ cycles/day).

Eco-Safe | Zero SF6 emissions, compliant with EU RoHS. 100% power-frequency withstand voltage test & partial discharge ≤10pC.

Compact Size | 650mm width saves 40% space, compatible with fixed or withdrawable installation.

Detailed Photos

Company Profile

Application

• Power Distribution: Transformer protection, busbar sectioning

• Industrial Control: Heavy motors, smelting furnaces, rolling mills

• Renewable Energy: PV inverter grid connection, wind farm collectors

• Critical Infrastructure: Hospitals, airports, data center UPS

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  Why choose us

   

• China Manufacturing Leader: 20 years in vacuum breaker R&D, serving 30+ countries

• Customization: Tailored voltage/current ratings, smart monitoring (RS485/wireless sensors)

• Fast Delivery: 7 days for standard models, annual capacity 50,000 units
   

  Product Parameters

   

  project		units	data
  The rated voltage		kV	12
  Rated frequency		Hz	50
  Rated insulation level	Peak rated lightning shock withstand voltage	kV	75
  	Voltage withstand 1min power frequency	kV	42
  Rated current		A	630 1250	630 1250	1250,1600 2000,2500	1600,2000,2500 3150,1000,5000
  Rated short circuit breaking current		kA		25	31.5	40
  Rated short circuit closing current (peak)		kA		63	80	100
  Rated short circuit duration		S	4
  Rated sequence of operation			O-0.3s-CO-180s-cO O-180s-CO-180s-CO(40KA)
  Rated single/back-to-back capacitor bank breaking current		A	630/400
  Rated short circuit breaking current breaking times		next	30
  Closing time		ms	30~70
  Break-brake time		ms	20~50
  Mechanical life		next	10000
  Rated energy storage and operating voltage		V	AC220/110DC220/110
  From contact		mm	11±1
  Contacts are overspaced		mm	3.5±0.5
  Average closing speed		m/s	0.5~0.8
  Average brake speed		m/s	0.9~1.2
  Contact closing bounce time		ms	≤2
  Three - phase points, switching is not simultaneity		ms	≤2
  Main circuit resistance		μΩ	≤ 50(630A)≤45(1250A)≤35(1600-2000A)≤25(2500above)