High performance 750A made in china vacuum 22kv circuit breaker

FOB Reference Price:Get Latest Price
$1,100.00 - $2,200.00 / Sets | 1 Set/Sets (Min. Order)
Lead Time:
Quantity(Sets) 1 - 10 11 - 50 >50
Est. Time(days) 25 40 Negotiable
Customized logo (Min. Order: 3 Sets)
Customized packaging (Min. Order: 5 Sets)


Graphic customization (Min. Order: 5 Sets) Less
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Quick Details
Place of Origin:
Beijing, China
Brand Name:
Model Number:
Poles Number:
Product name:
High performance 750A made in china vacuum 22kv circuit breaker
Rated voltage:
Rated current:
Breaking capacity:
Rated frequency:
50/60 Hz
Opening speed:
1.5±0.2 m/s
Closing speed:
0.7±0.2 m/s
Mechanical Life:
20000 Operations
Supply Ability
Supply Ability:
500 Set/Sets per Month High performance 750A made in china vacuum 22kv circuit breaker
Packaging & Delivery
Packaging Details
Wood case or according to client's requests
High performance 750A made in china vacuum 22kv circuit breaker
Shanghai, Tianjin ect.
Lead Time :
Quantity(Sets) 1 - 10 11 - 50 >50
Est. Time(days) 25 40 To be negotiated

High performance 750A made in china vacuum 22kv circuit breaker


Vacuum CB

ZW7 type is three-phase ac 50 hz, high voltage switch equipment, mainly used for the 22kV power transmission and transformation system control and protection, can also be used for city and township power grid and the industrial and mining enterprises normal operation and short circuit protection, and can be used as a contact circuit breaker and movable capacitor group, especially suitable for frequent operations.


In outdoor ZW7 type high-pressure sulfur hexafluoride circuit breaker on the basis of development ZW7 type of outdoor high voltage vacuum circuit breaker, as the external current transformer, with CT17 type spring operation mechanism. Three pole body is installed on a common chassis, central operating mechanism underneath their chassis, chassis equipped with current transformer bays, outdoor placed on current transformer independently. Circuit breaker three pole mechanical linkage operation, with copper pipe connected with the electrode gas extremely. Arcing chamber located in the porcelain set inside, on the principle of vacuum arcing chamber, vacuum arcing chamber choose well-known manufacturers products.


 Feature advantages

 1, using vacuum arcing chamber, with SF6 gas as auxiliary insulating medium, with spring operating mechanism, realizes the devoid of oil;

 2, open circuit performance is good, long life, is 20 times;

 3, can open circuit current is 630 a single capacitor group without renewed;

 4, mechanical life is long, can reach 10000 times, reliable action, frequent operation, low noise;

 5, has lost the breaking capacity, can be used for contact circuit breaker;

 6, according to user requirements, can not with CT or most with 12 CT;

 7, products, beautiful shape, anti-corrosion ability is strong, simple structure, no maintenance cycle is long and easy in maintenance.


No.       ItemUnitParameters
1Rated voltagekV22
2Rated currentA630/800/1250/1500
3Rated frequencyHz50/60
4Lightning impulse withstand current (peak)kV50
5Rated short-circuit breaking currentkA12.5/16/20
6Rated short-circuit current (peak)kA31.5/40/50
7Rated peak withstand currentKa31.5/40/50
84S short-time withstand currenkA31.5/40/50
9Rated operating cycle Sub-0.3s-Hop sub-180s-Hop sub-
10Rated short-circuit current breaking timeTimes20
11Mechanical lifeTimes20000
12Secondary circuit 1min power frequency withstand voltageKV2
13Opening speedm/s1.5±0.2
14Closing speedm/s0.7±0.2
15Motor Voltagem/sAC/DC 110/220
17Standard IEC


Factory equipment

Our partner is a large-scale manufacturer of circuit breaker electric equipment. During first Five-Year-Plan it has become an important base for developing and manufacturing in China after many years of development.





The products involving power networks have been put into operation everywhere in China and also exported to many foreign countries and regions. The Company has decades of experience of manufacture. The products are stable in performance, reliable in quality, advanced in technology. The performances of products reach  advanced international standars, as demostrating by the obtaining of International Certificates.



Our services CB

Quality and excellence in services 


A good brand must be supported by good products, but good products must be supported by an excellent service. 

We provide customers with product information support from product purchasing information to other business support services. Technical support is available for a complete series of products, including product consulting, type selection & replacement, simple application & installation, and FAQ.







Packaging & Shipping

Our packing experts will work with you and your product’s specifications, and provide solutions for packaging options to ensure safe transport and delivery.

Packaging:Wooden case, container or according to client's requirements

Shipping:Land transportation and Ocean transportation


The standard procedure for making wooden case is as follows:

♦ Receipt of information required for the type of goods to be wood barrel customers.

♦ Measure and create original designs for customers.

♦ Select the type of wood suitable for the requirements of the goods.

♦ Determine the delivery time.

♦ Check the wood barrel technique.

♦ Handover confirmation.



Our products have been shipped all around the world, with an extensive logistic network, we provide the best transportation option for our clients.






International standards


Our products meet the requirements of national and international standards. This has been confirmed by comprehensive type tests according to the latest IEC and ANSI standards.



Company Information
 Beijing Daelim Green EP Tech Co., Ltd.
Welcome to Daelim
We are engaged in the import & export of electric equipment. Our business team  has  more  than  15 years'  foreign  business  experience,   and  also  has  a unique  understanding  of electrical  products and overseas markets. We have established and extended business relationships with customers and partners in Southeast Asia, the Middle East, Europe, Africa, North America and South America.

The main products and equipment we are dealing with: power transformer, current transformer, potential transformer, vacuum & SF6 circuit breaker, load break switch, disconnector, switchgear panel, power plant, transmission line equipment.

We provide competitive prices, high quality products, timely shipment and efficient services to develop our cooperation with all of  our customers. We trade in accordance with international traditions and practices. Our mision is to keep improving our products through continuous service innovation and continuous integration of high-quality domestic resources for our customers  and partners.
Our team
Company Team

To face the challenges and opportunities of the development of economic globalization, our Beijing Daelim team aims to:

1.To "provide first-class technology, high-quality products and fine service that meets the client satisfaction" as objective.

2.With "good faith cooperation, realize clients ideal" as own duty.

3.To "become a long-term reliable business partner" as goal.



Transaction records

During our 15 years experience in the industry, we have collaborate in many tradeshows, stablishing a network of experts and engineering technicians from large and medium-sized firms.We get price in maintaining long-lasting relationship with many agents in the field. We have exported to more than 30 countries.



Contact information


Please feel free to contact me for further information.