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Gas Insulated Load Break Switch LBS

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: FZN21
Minimum Order Quantity: 1 SET
Packaging Details: WOODEN CASE
Delivery Time: 7 DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 2000 SET
Detail Information
Type: Indoor Rated Voltage: 7.2kV, 12kV, 17.5kV
Rated Current: 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A, Frequency: 50/60Hz
Poles Number: 3 Phase: 3 Phase
Medium: Vacuum Material: Galvanized Sheet And Accessories
Standard: GB, IEC Standard
High Light:

FZN21-12KV Load Break Switch LBS


10KV Load Break Switch LBS


FZN21 Load Break Switch LBS

Product Description

1.  FZN21-12KV 11KV 10KV indoor Gas Insulated Air Load Break Switch


FZN21-12KV 11KV 10KV indoor Gas Insulated Air Load Break Switch appliances for three-phase AC 10kV, 50Hz power system, or with the complete power distribution equipment and loop-network switch cabinet , combined substation and other ancillary uses, is widely used in urban network construction and transformation engineering, industrial and mining enterprises, high-rise buildings and public facilities ,can be used as ring power supply unit or terminal equipment, play power distribution, control and protection.

Technical performance of the products meet the IEC publication 60265-1/FDIS “high voltage switches, Part 1: Rated voltages below 1kV over 52kV high voltage load switch”, IEC60420 “High Voltage AC load switch – fuse combination units”; and CB16926 “AC High-voltage load switch - fuse combination units”, GB3804 “3-63kV AC high voltage switches” requirement.


2.  Product parameter data


No Item Unit Value
1 Rated voltage kV 12
2 Rated frequency Hz 50
3 Rated current A 630 125
4 Rated insulation level 1min power frequency withstand voltage kV Arc-quenching chamber fracture 48
(effective value) Earth , phase 42, insulating fracture 48
Lightning impulse withstand voltage (peak) Earth , phase 75, insulating fracture 85
5 Rated dynamic current (peak) kA 50  
6 4S thermal current kA 20  
7 Rated power load breaking current A 630  
8 Rated closed-loop breaking current A 630  
9 Rated cable charge breaking current A 10  
10 Rated breaking no-load transformer capacity KVA 1250
11 Rated breaking AC current A 3150
12 Rated short-circuit closed current kA 50
13 Rated current breaking times times 2000
14 Mechanical life times 10000
15 Permitted wear-thickness of vacuum arc-quenching chamber contact mm 2
16 Manual operating torque Nm >200


3.  Environmental application


A. The ambient air temperature: Max.: +40 °C. Min: -10 °C.

B. The altitude ≤ 1000m.

C. The relative humidity of air. daily average ≤ 90%. monthly average ≤ 95%.

D. The ambient air should not be obviously polluted by corrosively or the flammability gas and gleam. etc.

E. Without frequent shake.

F. Environment degree: grade Ⅱ.


4.  Technical diagram




5.  Factory


Gas Insulated Load Break Switch LBS 1


6.  Delivery


Gas Insulated Load Break Switch LBS 2


7.  FAQ


1. Technology ensure the quality satisfy international request.

2.Generally we promise one - two years quality guarantee, some products will be extended longer time for life span.

3. For tender cooperation, it is welcome to discuss the detail in between.

4. Some type reports are provided accordingly.

5. Our factory is 250000m2 for production and office.

6. There are four subsidies in our group company. So our whole group company can produce switchgear, power transformer, load break switch, disconnect switch, vacuum/sf6 circuit breaker, fuse, surge arrester, CT PT, Metering unit.

Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197