Indoor/High-Performance/ 12kv Vacuum Circuit Breaker/Frequent Switching/Electric MCB/Motor/Substation/for Electrical Systems
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Product Highlights
- High Breaking Capacity & Reliable Protection
- Long Service Life & Maintenance-Free Operation
- Compact Design & Wide Application
Product Attributes
- Customization
- Available
- Breaking Capacity
- High Voltage Circuit Breakers
- Operation
- Energy-storage Type
- Model NO.
- VS1-12
- Speed
- Normal Type Circuit Breaker
- Arc-extinguishing Medium
- Vacuum
- Installation
- Fixed
- Structure
- Vcb
- Poles Number
- 3
- Type
- Circuit Breaker
- Function
- Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection), Undervoltage, Anti-Jumping
- Certification
- ISO9001-2000, CE, GB1984-2003
- Payment
- T/T, L/C or Negotiation
- Trade Term
- Fob, EXW, C&F, Fca or Negotiation
- Rated Frequency
- 50/60Hz
- Rated Short-Circuit Breaking Current
- 20, 25, 31.5, 40ka
- Rated Current
- 630A, 1250A, 1600A, 2000A, 2500A, 3150A, 4000A
- Rated Voltage
- 12kv, 24kv, 35kv
- Polar Distance
- 150mm, 180mm, 210mm, 300mm or Customization
- Transport Package
- Plastic Bag & Wooden Case or as Requested
- Specification
- Steel, Copper, Ceramic, expoxy resin
- Trademark
- COPECO
- Origin
- Wenzhou, China
- HS Code
- 8535210000
- Production Capacity
- 3000PCS Per Month
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Indoor/High-Performance/ 12kv Vacuum Circuit Breaker/Frequent Switching/Electric MCB/Motor/Substation/for Electrical Systems
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Product Description






1 | Rated voltage | KV | 12 |
2 | Rated frequency | HZ | 50/60 |
3 | Rated Current | A | 630,1250,1600, 2000, 2500, 3150, 4000 |
4 | Rated short-circuit breaking current | KA | 20, 25, 31.5, 40 |
5 | Rated short-circuit closing current (peak) | KA | 50,63,80,100 |
6 | Rated short time withstand current | KA | 20, 25, 31.5, 40 |
7 | Rated short-circuit duration | s | 4 |
8 | Nos. of rated short-circuit breaking current | Times | 50(30 above 40KA) |
9 | Rated operating sequence | 0-0.3s-CO-180s-CO/ 0-180s-CO-180s-CO(Above 40KA) | |
10 | Rated lightning impulse withstand voltage | KV | 75 |
11 | 1min power frequency withstand voltage | KV | 42 |
12 | Closing time | ms | ≤ 70 |
13 | opening time | ms | ≤ 50 |
14 | Mechanical life | Times | 30000 |
15 | Rated breaking current of single capacitor bank | A | 630 |
16 | Rated breaking current of back to backcapacitor bank | A | 400 |
17 | Contactopendistance | mm | 11±1 |
18 | Contact Over-travel | mm | 3.5±1 |
19 | Rated switch-on/off operating voltage | V | AC110/220,DC110/220 |
20 | Switch-off (rated voltage) | ms | 20~60 |
21 | Switch-on(rated voltage) | ms | 30~70 |
22 | Motor rated power | W | 70 (above 40KA: 100W) |
23 | Closing speed | m/s | 1.0±0.2 |
24 | Opening speed | m/s | 1.3±0.2 |
25 | Contact closing spring time | ms | ≤2 |
26 | Rated contact pressure | N | 20KA(2400±200) 25KA (2400±200) 31.5KA(3100±200) |
27 | Three phase closing opening asynchrony | ms | ≤2 |







Q2: How is your after-sales service?
A2: We're one of the professional manufacturers and exporters in China. We can provide a series of supporting services from installation and debugging, operation and maintenance, fault diagnosis, to replacement of related accessories.
Q3: How long is the warranty period and what is the scope of warranty?
A3: We offer 24 months' warranty period, including the defects in covering materials or assembly processes. Artificial damage or arbitrary modification, failure to use as required, etc. are not covered by the warranty.
Q4: Do you accept OEM orders or can you provide customized non-standard products.
A4: Yes, we have a refined technical & management team, can meet the diverse needs from domestic and foreign customers.
Q5: Is there MOQ and what is the usual delivery time?
A5: No MOQ requested,1 sample can be supplied and normal delivery time is 3-40 days. Special or customized products will be discussed separately.
About the Supplier
This supplier has been audited by CTI. Verify the report on the official CTI website with ID "QIP-ASI253815". Items marked "" are certified.
Company Profile
Yueqing Copen Electric Co., Ltd., was established in 2012, located at Yueqing Economic Development Zone, Wenzhou city, Zhejiang province, who has been developed as a professional high volt. Power Transmission and Distribution equipment and components supplier in the past years, also being as one of the recommended model companies for National Power Grid Construction & Reformation.
We're now special in manufacturing and exporting Vacuum Circuit Breaker (VCB), Vacuum Contactors, SF6 Circuit Breaker, Disconnecting Switch, Load Break Switch (LBS), switchgear and components.
We have developed new products and assembly line optimization against our reinforced enterprise strength, refined technical & management team, to meet the customers' diverse needs. Over ten years' production and sales experience, we're well received in Southeast Asian, Russian, African market and American countries by the excellent quality and the best after-sales service.
We're also a OEM & ODM manufacturer, accept a small trial order to know the better about our product quality, packaging and shipment. Welcome to inquiry us which all will be replied within 24 hours. We also cordially welcome all customers overseas to visit us and discuss business cooperation or being as our agent in your country.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- 1 SHANGGONG RD., SHANGWU INDUSTRIAL ZONE, LIUSHI 325604, YUEQING, ZHEJIANG, CHINA
- Terms of Payment
- LC, T/T, D/P, PayPal, Small-amount payment
- International Commercial Terms(Incoterms)
- FOB, EXW, CFR, CIF, FCA
- Average Lead Time
-
Peak Season Lead Time: one month
Off Season Lead Time: within 15 workdays - Nearest Port
- Ningbo, Shanghai port
-
Minimum Order Quantity
- 1
-
Supply Chain Partners
- 8
Our Production Capability & Technical Expertise
- Main Products
- High Voltage Indoor Vacuum Circuit Breakers, Load Switches, High Voltage Vacuum Contactors, High Voltage Outdoor Vacuum Circuit Breaker, Vcb
-
Production Lines
- 2
-
Production Machines
- Busbar processing equipment, Brill hole
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Finished product checked by packing staff
-
Customization Options
- Customization from Samples, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2014-11-18
-
Export Year
- 11 years
- Main Markets
- South America, Eastern Europe, Southeast Asia, Mid East, Eastern Asia, Oceania, Africa, Western Europe
-
Repeat Buyers Choice
- 80%~100%
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE
FAQ
- Is VS1-12 vacuum circuit breaker suitable for indoor switchgear?
- Yes, it is specially designed for indoor 12kV medium-voltage switchgear applications.
- What protection functions does the VS1-12 VCB provide?
- It protects against load current, overload, and short-circuit faults in power distribution systems.
- Is the VS1-12 breaker maintenance-free?
- Yes, the vacuum interrupter design ensures long life and low maintenance requirements.
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