12kv Vs1 Insulation Cylinder Trolley Type Vacuum Circuit Breaker 4000A

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Energy-storage Type
• Model NO.: VS1-12/4000-275
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Insert
• Structure: Vcb
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), RCCB, Do as Your Request
• Certification: ISO9001-2000, CE
• Rated Voltage: 12kv
• Rated Frequency: 50/60Hz
• Rated Current: 4000A
• Phase Distance: 275mm
• OEM: Accept
• Transport Package: Wooden Case
• Specification: steel, expoxy resin, etc
• Trademark: LIYOND
• Origin: China
• Production Capacity: 1000 Set/Month
• Package Size: 80.00cm * 80.00cm * 85.00cm
• Package Gross Weight: 170.000kg

Product Description

12kV VS1 Insulation Cylinder Trolley Type Vacuum Circuit Breaker 4000A

The VS1-12/4000-275 vacuum circuit breaker is a high-performance medium-voltage switchgear component, engineered for demanding industrial and distribution applications requiring reliability, efficiency, and superior safety.

Product Highlights:

Superior Breaking Performance: Employs advanced vacuum interrupter technology to achieve safe, reliable arc extinction, ensuring secure electrical circuit protection even in challenging conditions.
Ease of Maintenance: The draw-out structure allows quick and straightforward access for maintenance or replacement, reducing downtime and associated costs.
Smooth and Stable Operation: The VS1 spring-operated mechanism provides precise, responsive switching performance, designed to meet the highest industry standards.
Enhanced Insulation Properties: The use of an insulated cylinder design improves overall dielectric strength, providing robust isolation and reducing the risk of breakdowns due to environmental factors.
High Adaptability: Versatile for a wide range of industrial applications, including power distribution, manufacturing facilities, mining operations, and large infrastructure projects where high current and strong short-circuit breaking capacity are essential.

 

Applying Ambient Conditions:
1. Ambient temperature: -10ºC-+40ºC
2. Ambient humidity: the average humidity of a day should be no more than 95%; the average humidity of a month should be no more than 90%;
3. Earthquake intensity: not exceed 8 degrees
4. Saturated vapor pressure: average pressure of a day should be no more than2. 2kPa,the average pressure of a month should be no more than 1.8kPa;
5.The height above sea level: less than 1000m;(not including special requirements)
6.1t should be installed in the places without fire, explosion, serious filth, chemical corrosion and violent VS1 ration.

Specification

 

No.	Name	Unit	Data
1	Rated voltage	kV	12
2	Rated current	A	630		1000 1250			1600 2000 2500 3150
3	Rated short circuit breaking current	kA	20	25	20	25	31.5	31.5	40
4	Rated peak withstand current	kA	50	63	50	63	80	80	100
5	Rated short time withstand current	kA	20	25	20	25	31.5	31.5	40
6	Rated short circuit making current	kA	50	63	50	63	80	80	100
7	Switching operations of short circuit current	times	50
8	Rated operating sequence		O-0.3s-CO-180s-CO-180s-CO(40KA)
9	Mechanical endurance	times	10000
10	Rated breaking operations of the rated current	times	20000
11	Rated lighting impulse withstand voltage(full wave)	kV	75
12	1 min. rated power frequency withstand voltage	kV	42
13	Contact stroke	mm	9±1
14	Over-travel of contacts	mm	3.5±0.5
15	Closing speed	m/s	0.4∼0.8
16	Opening speed	m/s	0.9∼1.2
17	Contact bouncing duration at closing operation	ms	≤2
18	Simultaneity of three phase closing operation	ms	≤2
19	Closing time	ms	30∼70
20	Opening time	m/s	20∼50
21	Distance between phases	mm	150, 210, 275
22	D.C component		50%

 

 

Note: 1. No.11&12 are provided when needed.

2. Switchgear should be with cold wind when the rated current is 4000A.

 

FAQ

Q: Could I have prices of your products?

A: Welcome. Please feel free to send us inquiry here. We will reply you within 24 hours.

 

Q: Can I get a sample before the bulk order?

A: Yes, we welcome sample order to test and check quality.Mixed samples are acceptable.

 

Q: Can we print our logo/ company name on products?

A: Yes, of course, we accept OEM, then need you to provide brand authorization to us

 

Q:Do you accept product customization?

A:Yes, of course, please provide specific drawings or parameters, we will quote you after evaluation

Q: What is the lead time? 
A: The lead time depends on the quantities ordered, generally within 7-20 days after receiving the payment. 

 

Q: What is your Trade Terms? 
A: We accept EXW, FOB, CIF, FCA, etc. 

 

Q: What is your payment method?  
A: We accept T/T, Western Union, Paypal, irrevocable L/C at sight, etc 

 

Q: Do you inspect the finished products?

A: Yes, each step of production and finished products will be came out inspection by QC department before shipping. And we will provide goods inspection reports for your reference before shipment

Q: How to solve the quality problems after sales? 
A: Take photos of the quality problems and send to us for our checking and confirming, we will make a satisfied solution for you within 3 days.