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FN7 Air Load Break Switch

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FN7 Air Load Break Switch

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Brand Name :	XG
Model Number :	FN7
Certification :	ISO CCC
Price :
Payment Terms :	L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability :	2000SET
Delivery Time :	7-15 DAYS

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Product Details
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FN7 Air Load Break Switch

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

(1).Altitude≤1000m;
(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

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.

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