ZN63A(VS1)-12 Indoor
high voltage vacuum circuit breaker
Product Description
Product Overview
ZN63A(VS1)-12 indoor high voltage vacuum circuit breaker, is a three-phase AC 50Hz or 60Hz rated voltage of 12KV power system indoor switchgear, as a power grid equipment, industrial and mining enterprise power equipment protection and control unit. lt is suitable for places that require frequent operation under rated operating current,or multi-switch short-circuit current. The circuit breaker adopts the integrated design of the operating mechanism and the circuit breakerbody, which can be used as a fixed installation unit, or it can be equipped with a special propulsionmechanism to form the function of the handcart unit.
Features
1.Compact Side-Mounted Design: Integrated operating mechanism and breaker body, space-saving, and compatible with fixed switchgear.
2.High Operational Frequency: Engineered for frequent load current switching and short-circuit interruption, ensuring durability.
3.Modular Compatibility: Can be paired with dedicated propulsion mechanisms to function as a withdrawable unit, adaptable to ring network power supply, box-type substations, and non-standard systems.
4.Low Maintenance: Sealed structure minimizes environmental impact, ensuring long-term stability and reduced upkeep.
Applications
Industrial Power Protection: Power distribution systems in factories, mines, and substations for load control and fault isolation.
Grid Automation: Supports urban grid automation upgrades, enabling remote operation and smart monitoring.
Custom Power Solutions: Suitable for renewable energy microgrids, rail transit, and other tailored electrical infrastructure projects.
The use of conditions
1. The environment temperature: upper limit +40ºC, lower limit-15ºC: (Allow storage at-30ºC)
2.Altitude: no more than 2000m
3.Relative humidity: daily average value is not greater than 95%, the monthly average is not greater than 90%
4.Saturated steam pressure: daily average value is not higher than 2.2x10-3 Mpa
5 monthly average is not higher than 1.8x10-3 Mpa
6.Earthquake intensity does not exceed 8 degrees
7 No fire, explosion, pollution, chemical corrosion and severe vibration place
Product Parameters
Performance Parameters for reference
(It can be customized according to customer's local demand!)
1. Technical parameter table
2. Outline and installation size
WorkShop
Work shop

Complete workshop testing equipment
The quality department of the company is equipped with multiple precision testing instruments and has established strict quality standards. With a precise and rigorous quality control attitude, we achieve comprehensive quality control from raw materials to finished products, implement ISO9001 standards, and take product quality as the sole standard.
More product
More Product:
https://tldq5978.en.made-in-china.com
Ex-factory Quality Assurance
- Routine test:Measurement of winding resistance,Measurement of voltage ratio,Check of vector group,Measurement of impedance voltage and load loss,Measurement of no - load loss and current,Separate-source voltage withstand test,Induced overvoltage withstand test,Dimension checking.
- Type tests:Lighting impulse test,Temperature rise test.
- Special tests:The company is accelerating the cultivation and development of productivity, and creating high-level intelligent production.
Company Profile
Know More About Our Company

Define-TAILI
Total Solution is how we define "TAILI". From design & customization, engineering, manufacturing, installation, to after - sale service. TAILI provides a Total Solution to our customers, helping and supporting them to gain a competitive advantage in their market.
TAILI, founded in 1988,is one of the largest and most respected manufacturers of MV power distribution products in Wenzhou, China, the "Electric Industry Center" of China. We have factories for manufacturing, research &development, and distribution of products: Transformers, Indoor&outdoor switches, Switchgears, Power substations, and electric components for transformers and switchgears.
Our mission at TAILI is to provide the highest - quality products at the best possible price. And by doing so, to provide an unmatched customer experience and actively establish long-term cooperative relationships with our new and old customers.
Our Advantages
Design Ability:Our design team can combine the needs of customers from East Europe, Africa, South America, the Middle East, Southeast Asia and other regions to customize transformers for different local market demands. As a Chinese manufacturer with more than 25 years' experience, we can produce transformers with European quality at a very competitive price, and perfectly replace imported products from Europe, so that users can use high-quality power products at the lowest cost to gain more advantages in their market.
Efficient Service: With 15 years of experience in the electrical line, we are committed to providing comprehensive technical support, design and customized solutions for our partners. And provide timely service for each step within 24 hours from design,production, logistics installation, etc..,to ensure clients an efficient and smooth operation of the projects! Partners' recognition is the motivation and encouragement for us. We attach importance and pursue giving one-stop service!
Certifications
Certifications
Attention
1. The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
2. The delivery time: Usually it will take about 15-20 days.
3. The standard of package: Usually use strong plywood cases for protection.
4. The material of transformer: We have two types, one is with copper and another one is with aluminum. It depends on your requirement. In fact, there are differences between the two when they work well. Except for the long - life factor, copper is better and also has a higher price.
5. The logo: If you have a good quantity, it is absolutely no problem to do OEM.
6. Our market: Our products are popular in Indonesia, the Philippines, Russia, the USA, the Middle East and so on. Some of them are our regular customers and some are in the process of development. We hope you can join us and make mutual benefits from our cooperation.
7. Warranty: within 12 months since BL date.
FAQ
Q1: Are you a manufacture or trading company?
A1: Yes, we are a manufacturer dedicated to designing customized products according to different country standards and producing a wide range of high - quality transformers, switchgears, and power substations. Meanwhile, we can also provide relevant accessories and components with guaranteed quality from our branch factories. We improve the design to make our products more competitive in the market while ensuring better quality for long - term performance.
Q2: How does your factory do regarding quality control and after-sales support?
A2: All the products will be 100% checked and tested before delivery. We also have an inspection team to make videos with customers online or via email. All our products comply with strict tests, and easy maintenance is guaranteed. We also offer online after-sale service in case of any further problems.
Q3: When can I get the price?
A3: Usually we quote within 1 hour after we get your inquiry. For customized products that need special design, we will quote within 12 hours with detailed specifications for confirmation.
Q4: Can you manage the delivery directly to our country with DIP term?
A4: Yes, we have our own Logistics company that helps to find a better solution for delivery and that makes the delivery time more punctual and at a lower cost.
Q5: Can I get guarantee of products after delivery?
A5: Yes, every product is 2-3 years' quality - warranted under customers' correct use of the products.
Q6. Do you have any Certificate?
A6: Yes. Each of our products has CE, 3C and CQC certificates. If you need any other certificates, we can help you to apply for them.
Q7: How can I pay you?
A7: The payment by T/T and L/C is acceptable.