Sf6 7.2kv Load Break Switch
Price: |
US $ 100/Set |
Min Order: |
1/Set |
Pay Type: |
L/C,T/T,Western Union,Paypal,Money Gram |
Prod Model: |
iUN-LBS |
Tag: |
Load Break Switch |
Type: |
High-voltage |
Structure: |
Three-column Disconnector |
Installation: |
Indoor High-voltage |
Operation: |
Electric |
Grounding: |
Single Ground |
Series: |
Three |
Run: |
Turn the Horizontal |
Switching Mode: |
Single Throw-in |
Certification: |
CE |
Brand: |
Unisun |
Product Description
iUN-LBS SF6 7.2Kv Load Break Switch
MV Indoor switch disconnector
DescriptionUN-LBS is a switch or switch combination is suitable for compose air insulation ring main unit for up to 36 kV.UN-LBS is designed for indoor applications, and meets requirements concerning human safety as well as ease of installation, operation and protection of the environment. Feature- Upgradability
- Compact
- Maintenance
- Easy installation
- Ease and safe to operate
StandardsUN-LBS units meet following standard: IEC62271-103/ IEC 62271-102/ IEC 62271-200 Dimensions and weights630 A switch - 630 A disconnector Weight: 50 kgBelow view Side view Front view
36KV 630 A switch - 630 A disconnector (width 750 mm) Weight: 75 kgBelow view Side view Front view
Switch or disconnector and earthing switchGas tightness
The three rotating contacts are placed in an enclosure filled with gas to a relative pressure of 0.4 bar (400 hPa) for UN-LBS 12-24 kV and 1 bar (1000 hPa) for UN-LBS 36 kV. It satisfies "sealed pressure system" requirements and seal tightness is always factory checked.Operating safety- The switch may be in one of three positions: "closed", "open", or "earthed", representing a natural interlocking system that prevents incorrect operation. Moving-contact rotation is driven by a fast-acting mechanism that is independent of the action of the operator.
- The device combines the breaking and disconnection functions.
- The earthing switch placed in the SF6 has a short-circuit making capacity, in compliance with standards.
- Any accidental over-pressures are eliminated by the opening of the safety membrane, in which case the gas is directed toward the back of the unit, away from the operator.

Main characteristics SF6 Load Break SwitchRated voltage (kV) | 7.2 |
Insulation level |
50 Hz, 1 min | Insulation | 20 |
(kV rms) | Isolation | 23 |
1.2/50μs | Insulation | 60 |
(kV peak) | Isolation | 70 |
Short-time withstand current |
Short-time withstand current | 25 | 630A |
(kA.1 s) | 20 | 630A |
| 16 | 630A |
| 12.5 | 630A |
Disconnector (kA/1 s) | 25 | 630 - 1250 A |
20 | 630 - 1250 A |
16 | 630 - 1250 A |
12.5 | 630 - 1250 A |
Maximum breaking capacity |
Transformer off load (A) | 16 |
Cables off load (A) | 31.5 |
Switch (A) | 630 |
Fuse-switch ** (kA) | 25 |
The making capacity is equal to 2.5 times the short-time withstand current.(*) Equipped referring to installation guide, and setting up at an altitude below 1000 m.(**) Depending on fuse characteristics, and on using of Schneider Electric Fusarc CF fuses.EnduranceUnits | Mechanical endurance | Electrical endurance |
Switch | IEC62271-103 | IEC62271-103 |
Fuse-switch | 1000 operations | 100 breaks at In, p.f. = 0.7 |
| Class M1 | Class E3 |
Disconnector | IEC 62271-102 |
1000 operations |
Temperatures |
The products must be stored in a dry area free from dust and with limited temperature variations | l for stocking: from -40°C to +70°C |
l for working: from -5°C to +40°C |
l other temperatures, consult us |
OUR COMPANY

HOT PRODUCTS
Unisun Electric was founded in August 1987, formerly known as the original Yueqing Great Wall electrical equipment factory, founded by Mr. Huang in June 1987, Mr HUANG is also founder of YUEQING QIUJING SWITCH FACOTRY(FORMER OF CHIINT AND DELIXI).
After more than 30 years of development, the products cover Medium Voltage Switchgear, low voltage switchgear, Busbar Trunking System, Pole Top Switch, Transformers, Instrument Transformer, Ring Main Unit, Load Break Switch.
Unisun Electric has more than 600 offices and sales companies in all major cities in China, with 81 holding companies and more than 300 foreign-invested cooperative companies, with more than 3, 500 elite employees, including 450 scientific and technical personnel Operating area of 127, 000 square feet, the products are exported all over the world.
Over the years the company has been committed to the development of national electrical industry, and many scientific research institutes, universities and international industry giants to establish close cooperation, set up a "Anhui LV Power Technology Research Institute".
2009 and the United States General Motors (GE) strong combination, to create the Asia-Pacific region's largest and most professional marine switchgear and low-voltage electrical equipment, has developed the GEA plus2.0, Modula plus, Modula 630k, marine transformers, marine box substation, Marine electrical automation equipment, tunnel dedicated distribution cabinet and other products.
Unisun Electric in accordance with the modern enterprise advanced management mode, established a scientific and sound management system, in strict accordance with the ISO9001: 2000 quality management system for production, sales and service, such as comprehensive, strict and scientific control and management, 2008 and have imported ISO14001: 2004 environmental management system and OHSAS18000 occupational health and safety management system, to create an environmentally friendly, healthy, safe and harmonious new enterprise.
The company's production and development of products, have passed the 3C, CQC, UL certification, and have access to "YUEQING FAMOUYS MARK", "Zhejiang Famous Brand Product", "China's well-known high and low voltage switchgear products top ten brands", "China's leading enterprises", "China's top ten brands", "China's top ten brands", "China's top ten brands, " "China's top ten brands, " "China's top ten brands" Big influence brand ", " national famous product after-sales service advanced unit "honorary title.
The twenty-first century is the era of knowledge economy, enterprise competition and development with the opportunity, both opportunities and challenges. And excellent in the "in good faith as a fundamental, customer-centric, quality of survival, innovation and development" business philosophy, the spirit of "seeking cooperation and win-win cooperation" business philosophy sincerely welcome friends at home and abroad work together, A total of the glorious future, create greater glory!
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