Our products main including 2.1Desktop Speaker, Mini Speaker ,Mini Bluetooth Speaker, USB Mini Speaker , Active Stage Speaker, Power Amplifier ,,HI-FI system ,soundbar , 5.1/3.1/2.1 Multimedia Speaker and ect .
Technical details:
Product Name :2.1Desktop Speaker, Mini speaker,Mini Bluetooth Speaker ,USB mini speaker
Support: USB/SD decoder ,FM radio,AUX input
Bluetooth :YES
Amazing bass ,you can enjoy rock ,metal and electronic music freely
2.1 Desktop Speaker,Mini Speaker,Mini Bluetooth Speaker,USB Mini Speaker Guangzhou J.SUN Electronics Co., Ltd. , http://www.jsunaudio.com
VD4 high-voltage indoor vacuum circuit breaker is applicable for three-phase AC power system of rated voltage up to 36kV 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 KYN61 or AMS, ABB type ZS3.2 series, etc. This circuit breaker is made with mature APG technology . The application of VD4 terminal 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
++++Â Main technical specifications:
Â
No
Item
Unit
Parameter
1
Rated voltage
kV
36
2
Rated frequency
Hz
50/60
3
Rated current
A
630, … 2500A
4
1min Power frequency withstand voltage
kV
95
118
5
Lightning impulse withstand voltage
kV
185
215
6
Rated short circuit breaking current (peak)
kA
50/63/80
7
Rated short breaking current
kA
20, …31.5
8
Rated short circuit making current (peak)
kA
50/63/80
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
12
Short time withstand current (4s)
kA
20, …31.5
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.
++++General:
VD4 high-voltage indoor vacuum circuit breaker is applicable for three-phase AC power system of rated voltage up to 36kV 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 KYN61 or AMS, ABB type ZS3.2 series, etc. This circuit breaker is made with mature APG technology . The application of VD4 terminal 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
++++Â Main technical specifications:
Â
No
Item
Unit
Parameter
1
Rated voltage
kV
36
2
Rated frequency
Hz
50/60
3
Rated current
A
630, … 2500A
4
1min Power frequency withstand voltage
kV
95
118
5
Lightning impulse withstand voltage
kV
185
215
6
Rated short circuit breaking current (peak)
kA
50/63/80
7
Rated short breaking current
kA
20, …31.5
8
Rated short circuit making current (peak)
kA
50/63/80
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
12
Short time withstand current (4s)
kA
20, …31.5
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.
Vd4 38kv/1250A-16ka Indoor Frontal Withdraw IEC62271 Embeded Pole Vacuum Circuit Breaker (VCB)
Model NO.: VD4
Poles Number: 3
Function: Conventional Circuit Breaker
Certification: ISO9001-2000
Trademark: powertech
Transport Package: Wooden Packing
Specification: IEC, GB
Origin: Zhejiang, China
HS Code: 85352100
Model NO.: VD4
Poles Number: 3
Function: Conventional Circuit Breaker
Certification: ISO9001-2000
Trademark: powertech
Transport Package: Wooden Packing
Specification: IEC, GB
Origin: Zhejiang, China
HS Code: 85352100
++++General: