Model NO.: VD4
Poles Number: 3
Type: Circuit Breaker
Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification: ISO9001-2000
Trademark: powertech
Transport Package: Wooden Packing
Specification: IEC, GB
Origin: Zhejiang, China
HS Code: 8535210000
General:Â Â Â Â
VD4 medium-voltage indoor vacuum circuit breaker is applicable for three-phase AC power system of rated voltage up to 7.2kV~24kV and frequency 50/60HZ,widely used in many fields such as power plant, transformer substation, petrol chemical industry , metallurgy , manufacturing industry , airport, residential area, etc., to control and protect the electric equipment, especially , It is used for the occasion that needs infrequent operation at rated current or multi-breaking short circuit current, may be mounted in the indoor air insulating switchgear like type KYN28 or KYN96, ABB type ZS series, etc. This circuit breaker is standards asGB1984-2003 AC high voltage circuit breaker ,JB3855 3.6-40.5Kv indoor AC High voltage circuit breaker ,DL/T403 Specification of 12-40.5Kv indoor High voltage vacuum circuit breaker for order as well as IEC60694. This circuit breaker is made with mature APG technology . The application of VD4terminal buffer guarantees the indoor terminal is ever more reliable in nay operation environment. VD4 can fully meet the requirement of GB, DL, IEC, DIN, VDE as well as standards of other advanced industrial countries.
Service environment:
 a) Air temperature: Maximum temperature: +40ºC; Minimum temperature:-25ºC
 b) Humidity: Monthly average humidity 95%; Daily average humidity 90%.Â
c) Altitude above sea level: Maximum installation altitude: 2500mÂ
 d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.Â
e) No frequent violent shake
Main technical specifications:
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| No | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 24 |
| 2 | Rated frequency | Hz | 50/60 |
| 3 | Rated current | A | 630, … 4000A |
| 4 | 1min Power frequency withstand voltage | kV | 65 |
| 5 | Lightning impulse withstand voltage | kV | 125/150 |
| 6 | Rated short circuit breaking current (peak) | kA | 50/63/80/100 |
| 7 | Rated short breaking current | kA | 20, …40 |
| 8 | Rated short circuit making current (peak) | kA | 50/63/80/100 |
| 9 | Rated cable(line) charging breaking current | A | 50 and 10 |
| 10 | Rated single capacitor bank switching current | A | 400 |
| 11 | Rated withstand current (peak) | kA | 50/63/80/100 |
| 12 | Short time withstand current (4s) | kA | 20, …40 |
| 13 | Mechanism life | times | 10000 |
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 case 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, those two have difference if normal work well. Only except the long life. Copper is better and also higher price.
5.The logo: If you have good quantity, it absolute no problem to do OEM.
6.Our market: our products are popular in Indonesia, Philippines, Russia, USA, Middle East and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation..
7.Warranty: in 12 month since BL date.
OUR SERVICE:
1.quick response in before sales period help you got order.
2.excellent service in production time let you know each step we made.
3.reliable quality solve you after sale headache.
4.long period quality warranty ensure you can buy without hesitate.
WHY CHOOSE POWERTECH:
1. One-stop supplier globally.
2. More than 10 years professional experiences in electrical appliance industry.
3.We offer professional online technology support for perfecting your electrical solution free.
4. Experienced sales service and suggestion.
5. All the products with accessories under strict quality control and final inspection before shipping.
6. We can assure the powerful competitive price and reliable quality products.
7. Most competitive shipping rate from our own shipping forwarder.
8. Warranty assurance: 12 month
9. Whatever big or small order, we can provide you one-to-one service.Â
CONTACT US:
Contact person: Mr. Chen Chengming
Tel:86-570-5657760
Mobile:86-18668777248
Your Best Choice for Electrical Appliances Industry!!!
Please leave an inquiry to know more details about Price , Packing ,Shipping and Discount.
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