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FN7 Air Load Break Switch

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: FN7
Minimum Order Quantity: 1 SET
Packaging Details: WOODEN CASE
Delivery Time: 7-15 DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 2000SET
Detail Information
Type: Indoor Medium: Vacuum
Standard: GB, IEC Standard Function: Switch On And Off Normal Load Current
Installation Location: Power Plants Warranty: 12 Months
OEM: Yes Package: Exporting Standard Package
Rated Voltage: 7.2kV, 12kV Rated Current: 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A
High Light:

7.2kV Air Load Break Switch


12kV Air Load Break Switch


2500A Air Load Break Switch

Product Description

1. FN7 Type 10kv 11kv 12kv indoor air load break switch fuse unit pole mounted lbs

FN7-12 series indoor AC HV load switch is a gas-production HV load switch and fuse combination unit with arc quenching principle.It is applied in three-phase AC 50Hz power system with rated voltage 12kV for breaking the load current and making the short-circuit current.The fuse combination unit can break the short-circuit current and has the function of single-phase fuse three-phase tripping and breaking.It is the ideal selection for protecting the line, equipment and transformer. Its performance meets the requirements of national standards GB 3804-2004 High-voltage alternating-current switches for rated voltage above 3.6kV and less than 40.5kV and GB 16926-2009


2. Product parameter


Serial No. Item Unit YFN7-12 HV Load Switch
1 Rated voltage kV 12
2 Rated frequency HZ 50
3 Rated current A 630
4 Rated short-circuit breaking current of fuse kA ---
5 Rated breaking transfer current A ---
6 Main loop resistance μΩ ≤80
7 Rated active load breaking current A 630
8 Rated short-time withstand current(thermal stability current)/duration kA/s 20/4
9 Rated short-time withstand current(thermal stability current)/duration of earthing switch kA/s 16/2
10 Rated peak withstand current(dynamic current) kA 50
11 1 min power-frequency withstand voltage(effective value)to earth,phase-to-phase/isolating fracture kV/kV 42/48
12 Full-wave lightning impluse withstand voltage(peak) to earth,phase-to-phase/isolating fracture kV/kV 75/85
13 Mechanical life Time 2000
14 Rated opening operation voltage V ---
15 Time of switch opening triggered by breaking of fuse ms ---


3. Product Characteristics


small size

light weight
simple & reasonable structure
small operating force
reliable performance & convenient maintenance


4. Service Conditions

(2).Ambient temperature-25ºC-+ 40ºC;
(3).The daily average of relative humidity shall not be larger than 95% and the monthly average shall not be larger than 90%:
(4).The ambient air shall not be subject to the obvious pollution such as corrosive or combustible gas and steam;
(5).The site without fire hazards and explosion hazards;
(6).The site that the seismic intensity does not exceed degree 8; the gradient shall not exceed 5°


5. Technical detail




6. Factory




7. Delivery


FN7 Air Load Break Switch 1


8. FAQ


1. Send the technical data, better for all useful information; we will make a good recommendation.

If possible please attach one reference picture to avoid any misunderstanding or any links from our website for we get a better understanding.

2. The lead time depend on quantity of order. Some standard type is on stock. Otherwise, it will take 3-15 days.

3. Usually shipped by sea, small order or urgent order we can send you by air.

4. All our activities are accredited to ISO 14001:2015 and IEC standard.

5. Technology ensure the quality satisfy international request.

Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197