Vs1-12kv 630-4000A High Voltage Vacuum Circuit Breaker Auto Recloser Vacuum Switch Withdrawable

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: Vcb
• Model NO.: VS1-12
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB
• Certification: ISO9001-2000, CE, CCC
• Rated Frequency: 50/60Hz
• Rated Voltage: 12/24kv
• Rated Currrent: 630-4000A
• Rated Short Circuit Breaking Current: 20-40ka
• Rated Short Circuit Making Current: 50-100ka
• Rated Current Breaking Time: 20000 Times
• Rated Operation Voltage: DC/AC 110V/220V
• Power Frequency Withstand Voltage: 42-65kv
• Lightning Impulse Voltage: 75-125kv
• Input Power: 70W
• Themal Stability Current: 20-40ka
• Dynamic Sable Current: 50-100ka
• Rated Operation Sequence: O-0.3s-Co-180s-Co
• Transport Package: Cardboard Box Shipping
• Specification: 652*632*555mm
• Trademark: CNKC
• Origin: China
• Production Capacity: 3000PCS/Monthly

Product Description

Product Description
VS1 indoor medium voltage Vacuum Circuit Breaker is a three-phase AC 50Hz ,rated voltage 6KV,12KV,24KV switch equipment of power system.
Breaker adopts the integral design of the actuating mechanism and the breaker body, which can be used as a fixed installation unit or as an individual VCB carriage together with handcart. They have a long life expectancy. There is no adverse effect on the vacuum, even from frequent switching of operating and short-circuit currents.
Our products are widely used in:
1 - Transformers and distribution substations
2 - Generator control and protection
3 - Capacitor bank control and protection, etc

Model Description



Product technical parameters and external dimensions






Product structure features 
VS1 type VCB consist of operating mechanism and arc-extinguish chambers in front-back arrangement, its main conductive circuit is floor model structure. The vacuum arc-extinguish chamber is fixed in a vertical cannular insulation column made of epoxy resin by APG technology, therefore with high anti-creepage function. Such structure design greatly reduces the accumulation of dusts on the surface of vacuum arc- extinguish chamber, it not only can prevent the vacuum extinguish chamber from outside influences, but also can ensure to present high resistance state against the voltage effect even in warm-wet climate or heavy pollution environment.
1 - with reliable interlock functions, suitable for frequent operation
2 - low noise and energy consumed
3 - simple and robust construction.
4 - high operating reliability
5 - mechanical durability of switch : 20000 times, etc



Environment condition

1. Ambient air temperature: -5~+40 and the average temperature should not exceed +35 in 24h.
2. Install and use indoors. Altitude above sea level for operation site should not exceed 2000M.
3. Relative humidity should not exceed 50% at max temperature +40. Higher relative humidity is allowed at lower temperature. Ex. 90% at +20. But in view of the temperature change, it is possible that moderate dews will produce casually.
4. Installation gradient not exceed 5.
5. Install in the places without fierce vibration and shock and the sites insufficient to erode the electrical components.
6. Any specific requirement, consult with manufactory.

Product details


Products real shot


A corner of the production workshop


Product packaging



Product application case