Description of ZN85G-40.5
draw out circuit breaker ZN85G-40.5 series high-voltage vacuum circuit breaker is a kind of indoor high-voltage switch equipment with 50/60HZ three-phase alternating current and 40.5KV rated voltage. The general framework composed by the body and operation system.
The product is used for industrial and mining enterprise, power plant and transformer substation to protect and control equipments, also it can be used in the locations where need frequent operations.
The composite insulted material insures no pollution and explosion danger with high insulation level.
The product conforms to IEC 62271, GB1984, JB3855 and DL1403.
Technical parameter
Item | Unit | Data | ||
Rated voltage | Kv | 40.5 | ||
Rated frequency | HZ | 50/60 | ||
Rated current | KV | 185 | ||
Rated lighting impact withstand voltage(peak) | Kv | 95 | ||
Rated short-time power frequency withstand voltage (1 min) | KA | 20 | 25 | 31.5 |
Rated short-circuit breaking current | A | 630,1250 | 630,1250,1600 | 1250,1600,2000 |
Rated current | KA | 20 | 25 | 31.5 |
Rated short-time withstand current(virtual value) | KA | 50 | 63 | 80 |
Rated peak withstand current (peak) | KA | 50 | 63 | 80 |
Rated operating sequence |
| Off-0.3S -CO-180S-CO | ||
Marking and breaking times of short-circuit current | times | 20 | ||
Duration of rated short-circuit current | s | 4 | ||
Mechanical life | times | 20000 | ||
Power frequency withstand voltage of secondary circuit | V | 2000 | ||
Rated breaking current of single capacitor bank | A | 630 | ||
Rated breaking current of back to back | A | 400 | ||
Contact clearance | mm | 22+/-2 | ||
Contact travel | mm | 6+/-1 | ||
Bounce time of contact closing | ms | less than 3 | ||
Different period of three-phase at closing and tripping | ms | less than 2 | ||
Average closing speed | m/s | 1.2+/-0.3 | ||
Average opening speed | m/s | 0.65+/-0.15 | ||
Rated opening/closing operating voltage | V | AC110/AC220/DC110/DC220 | ||
Rated voltage of energy storage motor | V | AC110/AC220/DC110/DC220 | ||
Main conductive circuit resistance | Ω | less than 80 | ||
Picture show
Our promises
Quality assurance:All the products will go through the detailed quality inspection during production.
Manufactuer's price:Factory direct sale,competitive price.
1. Your inquiry related to our products or prices will be replied within 24 hours.
2. Well-trained and experienced staffs to answer all your enquires in fluent English.
3. OEM & ODM projects are highly welcomed. We have strong R&D team here to help.
4. Good after-sale service offered, please get back if you got question.
5. Protection of your sales area, design drawing and all your private information.
FAQ
1. How to order the products?
Answer:Send the inquiry with detail item descrpition or with Model number.If there is no packing demand we take it as sea-way packing.
If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.
2. About lead time and shipping time?Answer : The lead time depend on quantity of order. Usually shipped by sea, small order or urgent order we can send you by air after received your agreement.
3.Can I expect a quality products?Answer : Yes. All our activities are accredited to ISO 9001:2008 ,both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
Our story with customers
In 2005,we received the email from ALIBABA that a Russian customer would like to order the KYN28-12 indoor metal-clad enclosed switcgear.We confirm the product parameters and pictures carefully again and again with the client,the last communication is the most difficult in price,it is a psychological warfare,customers began to demand a 20% cut,we insist on our price,emphasis on the various advantages of our products with the high quality. After compared with other factory,Russia customer finally chose to coperation with our company.After more than 20 days,customers sent a email to tell us that they are very satisified with the goods. At the same time,he praised our good service attitude,delivery on time,good quality,until now the Russia client has been our long-term customer,also is our good friend.
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