SFRING Series is AIS, metal enclosed RMU with SF6 LBS for the secondary distribution network, and it has been designed to provide a wide variety of functions and services as required by a modern power distribution system.

SFRING LBS uses sulphur hexafluoride gas (SF6) for insulation and breaking, the active part are placed in an insulating enclosure in accordance with IEC standards for sealed pressure systems.

SFRING products offer remarkable features:

-         Long service life

-        Maintenance free for active parts

-        Operating safety

-        Very low overvoltage level

SFRING complies with IEC 271200

Rated voltage (KV)

12

24

Rated current (A):

Line LBS

FUSE LBS

630

400/630

630

400/630

BUSBAR (mm2)

400

400

Power frequency withstand test voltage (for 1 min) KV

28

50

Impulse withstand test voltage KV

75

125

Rated short-time withstand current (1 sec) KA

25

20

Rated peak withstand current KA

65

50

 

 

 

Rated Voltage KV

12

24

 

width

Height

depth

width

Height

depth

3R+0T

1500

1670

1000

1500

1670

1000

4R+0T

2000

2000

2R+1T

1500

1500

3R+1T

2000

2000

3R+1T+M

2600

2600

2R+1T+M

2100

2100

 

 

SFRING

12

 

 

 

 

 

RATED VOLTAGE

 

24

 

 

 

 

 

 

 

 

25

 

 

 

 

BREAKING

 

 

20

 

 

 

 

 

 

 

 

21

 

 

 

2+1

 

 

 

31

 

 

 

3+1

 

 

 

30

 

 

 

3+0

 

 

 

40

 

 

 

4+0

 

 

 

 

M

 

 

MEASURING

 

 

 

 

0

 

 

NO MEASURING

 

 

 

 

 

XXX

 

CT

 

 

 

 

 

 

XXX

FUSE RATING