Indoor Drawable Type Vacuum Circuit Breaker

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed/Drawable
• Structure: Conventional Circuit Breaker
• Model NO.: VD4
• Poles Number: 3
• Type: Circuit Breaker
• Function: Overcurrent Protection, Circuit-Breaker Failure P
• Certification: ISO9001-2000, CE
• Transport Package: Wooden
• Specification: IEC, ANS
• Trademark: Rockwill
• Origin: China
• HS Code: 85352100
• Production Capacity: 5000 PCS/Year

Product Description

VD4 Type medium-voltage indoor vacuum circuit breaker is applicable for three-phase AC power system of rated voltage up to 42kV 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.

This circuit breaker is standards as IEC62271-100, GB1984-2003 high voltage circuit breaker for order as well as IEC60694.

This circuit breaker is made with mature APG technology. The application of RVB terminal buffer guarantees the terminal is ever more reliable in nay operation environment.

++++Service environment

A) Air temperature: Maximum temperature: +40C; Minimum temperature: -25C
B) Humidity: Monthly average humidity 95%; Daily average humidity 90%.
C) Altitude above sea level: Maximum installation altitude: 2500m
D) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
E) No frequent violent shake.

No	Item	Unit	Parameter
1	Rated voltage	kV	12	17.5
2	Rated frequency	Hz	50/60
3	Rated current	A	630/800/1250/1600/2000/2500/3150
4	1min Power frequency withstand voltage	kV	38/42	45/49
5	Lightning impulse withstand voltage	kV	75	95
6	Rated short circuit breaking current (peak)	kA	63/80/100
7	Rated short breaking current	kA	20/25/31.5/40kA
8	Rated short circuit making current (peak)	kA	63/80/100/125
9	Cable charge breaking current in earthing fault	A	20	20
10	Rated withstand current (peak)	kA	63/80/100
11	Short time withstand current (4s)	kA	31.5
12	Mechanism life	times	10000
13	Operation sequence		O-0.3-CO-180S-CO
14	Rate of rise of transient recovery voltage	kV/uS	0.34	0.42
15	Peak of transient recovery voltage	kV	20.6	30

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 ROCKWELL:

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.  

CONTACT US:

Contact person: Mr. Chen Chengming
Tel:[phone]
Mobile:[phone]
 


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