Electrical Equipment Indoor Medium High Voltage Wenzhou Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: Low Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: VS1-12
• Arc-extinguishing Medium: Air
• Structure: MCCB
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Overcurrent Protection
• Certification: ISO9001-2000, CE, CB, CCC
• Rated Closing Voltage of Operating Mecha: AC/DC 110,220
• Contact Opening Distance: 11±1 mm
• Average Opening Speed: 0.9-1.3m/S
• Closing Time: ≤100 Ms
• Transport Package: Cartons
• Specification: 5X10X10cm
• Trademark: CNHK
• Origin: Zhejiang, China
• HS Code: 8536200000
• Production Capacity: 10000 Pieces/Year

Product Description

Product Description

No.	Item		Unit	Data
				20kA	25kA	31.5kA		40kA
1	Rated voltage		kV	12
2	Maximum working voltage		kV	12
3	Rated current		A	630/1250	630/1250	630/1250/1600		1250/1600
						/2000/2500		/2000/2500/
								3150/4000
4	Rated short-circuit breaking current		kA	20	25	31.5		40
5	Rated short-circuit closing current		kA	50	63	80		100
6	Rated peak withstand current		kA	50	63	80		100
7	4S rated short-circuit withstand current		kA	20	25	31.5		40
8	Rated insulation level	1min power frequency withstand voltage	kV	42 (phase to phase, to ground)/48 (break) effective value
		Lightning impulse withstand voltage		75 (phase to phase, to ground)/85 (break) peak value
9	Rated operation sequence			O-0.3S-CO-180S-CO			O-180S-CO-180S-CO
10	Mechanical life		Times	10000			10000
11	Rated short-circuit breaking current breaking times		Times	30
12	Rated closing voltage of operating mechanism		V	AC/DC 110,220
13	Rated opening voltage of operating mechanism		V	AC/DC 110,220
14	Contact opening distance		mm	11±1
15	Over-travel (compressed length of contact spring)		mm	3.5±0.5
16	Three-phase opening and closing asynchronism		ms	≤2
17	Contact closing bounce time		ms	≤2			≤3
18	Average opening speed		m/s	0.9-1.3
19	Average closing speed		m/s	0.5-0.8
20	Opening time	At the highest operating voltage	ms	≤50
		At the lowest operating voltage		≤80
21	Closing time		ms	≤100
22	Main circuit resistance of each phase		μΩ	≤50			≤45
23	Accumulated thickness of allowable wear of moving and static contacts		mm	3

 

Company Profile

 

FAQ

1. Who are we?

Huanghua Group Co., Ltd.(CNHK) is a leading enterprise in China's high and low voltage power transmission and
distribution industry and low-voltage electrical appliance industry, We are based in zhejiang, China, start from 2001,we sell to Domestic Market(40.00%),Central America(5.00%),South Asia(5.00%),Southern Europe(5.00%),Northern Europe(5.00%), Africa (5.00%).There are total about 201-300 people in our office.

 

2. Why should you buy from us?

In 1980, we founded HuaLian switch factory, which is the former of Huanghua Group .

In 2001, we upgraded to a Group company. in 1980 to 2012, we founded seven subsidiaries.
At present ,we have CCC, ISO9000,ISO14001 and other Certifications.

CNHK 's products have been widely used in China national key projects.

CNHK became Chint 's  and other companies close partner in China, and reached an agreement to co-produce switchgear in 2016.

 

3. What services can we provide?

Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP, Express Delivery

Accepted Payment Currency:USD,RMB,EUR,CAD,AUD,HKD,GBP;

Accepted Payment Type: T/T,L/C,Money Gram,Credit Card,PayPal,Western Union,Cash,Escrow;

 

4.Are you trading company or factory?

Our factory has been engaged in manufacturing electrical equipment and suppliers for more than 40 years.

 

5.What certificates your products have?

Most of our products have CE,CCC ,CTQC and TUV certificates. Don't worry about the quality!~

 

6. What's your delivery time? 

Usually it can be within 7-15 days! The exact delivery time please contact our sales manager