China Electrical Power Transformer manufacturer

24kv Distribution System Solid Insulated Maintenance Free Vacuum Switchgear

Product Details:
Place of Origin: China
Model Number: ZW20-12/630A
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: 200-5000/piece
Packaging Details: wooden case
Delivery Time: 15 days
Payment Terms: LC T/T
Supply Ability: 20000 pieces/year
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Detail Information

Model Number: ZW20-12/630A Poles Number: 3
Mechanical Life: 10000 Times Rated Current: 630A
Type: Vacuum Rated Voltage: 12kv
Standard: IEC60947-2
High Light:

vcb circuit breaker


vacuum circuit switch

Product Description

Hot Sale HengFengYou High Quality ZW20-12 outdoor high-voltage

vacuum circuit breaker


1, Product description

24kv Distribution System Solid Insulated Maintenance Free Vacuum Switchgear 0

ZW20-12 model outdoor AC vacuum circuit breaker is used to make and break load

current, overload current and short-circuit current in 12kV, 50/60Hz power system.

It's applicable for substations, industry and mining, urban and rural electricity power

networks, especially applicable in occasions with frequent operation and automatic

power distibution network. It accords with the standards of IEC62271-100 &GB1984

AC high voltage circuit breaker, GB/T 11022 HV General technical requirement of

switches and control apparatus.

with frequent operations.


2, Optional equipments


1. Current transformer, metering pole 3 pieces 200/5 or higher.

2. Outer voltage transformer 2 pierces (for control power supply and metering).

3. Motor spring mechanism AC/DC220/1 10/48/24V.

4. Reclosing controller and series FTU and RTU.


3, Specification list:


Item Unit Numeric  
NominalVoltage KV 12  
RatedFrequency HZ 50  
RatedCurrent A 630  
RatedShort-circuitBreakingCurrent KA 20
DynamicStabilityratedcurrent KA 50  
RMS/Ratedthermalstabilization KAIS 20/4
Mechanismlife Times 10000  
Ratedshort-circuitclosingbreakingNumber Times 30



Ratedbreakingcurrentnumber Tmes
Ratedshort-circuitcloseopencurrent KA 50    
Ratedinsulationlevel KV  





PE 42/34 75
PP 42/34 75
Fracture 48/34 35
SF6ratedpressure(20spendpressure) MPa 0.01    
Ratedshort-circuitclosingbreakingNumber   30    
Ratedshort-circuitcut-offcurrent'sDCcomponent %dc 513  


4, Structure:

24kv Distribution System Solid Insulated Maintenance Free Vacuum Switchgear 1


5, Product characteristics


1. Ideal apparatus in urban and rural electricity network reform : Remote function:remote

control, remote metering, remote communication and remote adjustment.

2. Flexible operating: Both power storage and CO operation are motor and manual operated,

remote and local operation are both available.

3. Excellent breaking capability: Break short-circuit current 25kA up to 30 times.

4. Small operation power and high dependability: The small motor-driving spring operation

mechanism with new design is of lowest operation power (about 30W).

5. Multiple nstallations: Pole mounted and pad mounted.

6. Reliable sealing: The mature sealing technology assures reliable sealing performance

7. Particular incoming and outgoing method: Silicon rubber bushing to make enough insulate distance.

8. Safe operation: Anti-explosive device mounted on the top of box prevents heated gas and maters from

spattering out when inner fault occurs.


24kv Distribution System Solid Insulated Maintenance Free Vacuum Switchgear 2



About us


Qingdao Hengfengyou Electrical Engineering Co. , Ltd. is one of the large-scale electric complete

sets of manufacturers in China, specializing in oil-immersed transformers, dry-type transformers,

high-voltage Cabinets, low-voltage cabinets and substation manufacturing specialized electrical

enterprises. The company is located in the beautiful coastal city of china-qingdao. The company

has a registered capital of 10 million yuan, 20 senior technical personnel, more than 500 employees,

and a sound sales and service system, annual output value of US $1 billion, the products sell well

at home and abroad.

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