


The vacuum circuit breaker is an essential component in electrical systems, precisely engineered to provide flawless control and protection. Expertly crafted to ensure seamless functionality, this device is a hallmark of reliability in high-demand electrical applications.
Renowned for its groundbreaking design, this vacuum circuit breaker employs a high-vacuum environment as the arc-quenching medium, delivering exceptional insulation capabilities. As it disrupts electrical currents, it produces an arc that is swiftly extinguished by the rapid contact movement and the vacuum's superior dielectric recovery strength. This ensures top-tier efficiency and unwavering reliability in even the most challenging conditions.
Exhibiting a robust yet simplified structure, the vacuum circuit breaker consists of fixed and moving contacts, an arc-control device, and a protective insulating enclosure. These contacts are meticulously designed from materials celebrated for their outstanding conductivity and superior resistance to erosion. They are engineered to withstand the intense heat and energy generated during operation, thereby guaranteeing lasting durability and precise performance.
These versatile breakers play a crucial role in power distribution systems, including substations and industrial power grids. Their rapid response and reliable performance are indispensable for swiftly disconnecting fault currents, protecting electrical equipment from the hazards of short-circuits and over-currents. Coupled with their extended lifespan and minimal maintenance requirements, they represent a cost-effective solution ideal for diverse electrical applications.
Rated Capacity |
Voltage Combination |
Connection Symbol |
Off-load Loss(KW |
On-load Loss(KW) |
Short Circuit Impendance(%) |
Impendance |
Weight(KG) |
Dimensions(mm) |
KVA |
High Voltage |
Tapping Range |
Low |
(75ºC) |
(%) |
Oil |
Total |
Length |
Width |
Height |
|
(KV) |
(%) |
Voltage |
|
|
|
|
|
|
|
|
|
|
(KV) |
|
|
|
|
|
|
|
30 |
20 |
±5 |
0.23 |
Dyn11 |
0.1 |
0.66 |
2.1 |
5.5 |
90 |
345 |
860 |
565 |
1000 |
50 |
|
|
0.38 |
Yyn0 |
0.13 |
0.96 |
2 |
105 |
415 |
895 |
590 |
1040 |
63 |
22 |
±2×2.5 |
0.4 |
|
0.15 |
1.145 |
1.9 |
110 |
520 |
889 |
630 |
1055 |
80 |
|
|
0.44 |
|
0.18 |
1.37 |
1.8 |
120 |
530 |
890 |
690 |
1070 |
100 |
24 |
|
0.48 |
|
0.2 |
1.65 |
1.6 |
135 |
565 |
925 |
670 |
1090 |
125 |
|
|
0.6 |
|
0.24 |
1.98 |
1.5 |
130 |
670 |
1045 |
680 |
1110 |
160 |
|
|
|
|
0.29 |
2.42 |
1.4 |
145 |
680 |
1135 |
715 |
1140 |
200 |
|
|
|
|
0.33 |
2.86 |
1.3 |
160 |
790 |
1220 |
790 |
1170 |
250 |
|
|
|
|
0.4 |
3.35 |
1.2 |
175 |
895 |
1290 |
855 |
1200 |
315 |
|
|
|
|
0.48 |
4.01 |
1.1 |
220 |
1150 |
1375 |
910 |
1250 |
400 |
|
|
|
|
0.57 |
4.73 |
1 |
220 |
1225 |
1420 |
950 |
1260 |
500 |
|
|
|
|
0.68 |
5.66 |
1 |
290 |
1525 |
1540 |
1035 |
1260 |
630 |
|
|
|
|
0.81 |
6.82 |
0.9 |
6 |
335 |
1885 |
1625 |
1110 |
1340 |
800 |
|
|
|
|
0.98 |
8.25 |
0.8 |
430 |
2335 |
1880 |
1050 |
1360 |
1000 |
|
|
|
|
1.15 |
11.33 |
0.7 |
575 |
2610 |
1800 |
1050 |
1550 |
1250 |
|
|
|
|
1.35 |
13.2 |
0.6 |
490 |
2770 |
1825 |
1285 |
1540 |
1600 |
|
|
|
|
1.63 |
15.95 |
0.6 |
755 |
3705 |
1905 |
1340 |
1540 |
2000 |
|
|
|
|
1.95 |
19.14 |
0.6 |
910 |
4355 |
1970 |
1395 |
1640 |
2500 |
|
|
|
|
2.34 |
22.22 |
0.5 |
990 |
4865 |
2095 |
1445 |
1840 |

Company Profile

Zhejiang ChaoTai Complete Equipment Co., Ltd. is a trailblazer in the realm of electrical integration, recognized as a high-tech enterprise. With a highly experienced R&D, production, and service team, boasting over 15 years of industry excellence, we are at the forefront of creating and delivering premium electrical solutions.
Our extensive suite of products includes high-voltage solid-state soft starters, capacitor cabinets, high and low voltage switchgear, gas-insulated switchgear, and substations. These versatile products are deployed widely across various sectors, including energy, chemical industries, metal smelting, power grids, industrial manufacturing, academia, medical and pharmaceutical fields, municipal commerce, water resources, transport, and residential domains.
Driven by a commitment to technological innovation and a 'smart manufacturing' ethos, we are dedicated to attracting top-tier technical talent to enhance our core competitiveness. Our mission is to deliver unmatched value and service to our clients while establishing the most prestigious brand in our field. From our modest beginnings to our current standing of industry excellence, our journey is defined by continuous advancement. We emphasize quality, integrity, and effective management to succeed, with the goal of elevating China's electric power and grid sectors to new heights. Upholding integrity, prioritizing quality, offering outstanding service, and ensuring customer satisfaction remain our unwavering tenets. Excellence and innovation are the cornerstones of our brand's evolution. Your trust drives our ambition, and we extend our heartfelt gratitude to all customers for their steadfast support, as we collaborate to create a brighter future.
Our Advantages
Certifications
After Sales Service

Packaging & Shipping
Q1. Are you a factory or trading company?
A.We are a factory.
Q2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q3. What's the payment term?
A. We accept TT. 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll l show you the photos of the products and packages before you pay the balance.
Q4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons, If vou have leaallyl registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q5. Would you accept to use our logo?
A. If you have good quantity,it absolute no problem to do OEM.
Q6. How about the transport?
A. If the number of aoods is small we usually use TNT.DHL.FEDEX.EMS and some express voull offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q7. What is your Production lead time /delivery time?
A: Generally, it will take 25 to 30 days after receivina vour advance payment.
The specificl delivery time depends on the items and the quantity of your order. Silicone rubber's reqular product is 1,000/ week, Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:l. We keep aood auality and competitive price to ensure our customers benefit:
A: 2. We respect every customer as our friend and we sincerely do business and make friendsl with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.