Technical data of FN5 indoor load break switch

- Sep 03, 2019-

 Technical data of FN5 indoor load break switch

2

 Name

Unit

Value

 Rated voltage

KV

13.8

 Maximum operating voltage

KV

15

Rated frequency

HZA

50

Rated current

A

400

630

Rated short time withstand current

KA/S

12.5/4

20/2

Rated peak withstand current

KA

31.5

50

Rated closed-loop breaking current

A

400

630

Rated active load breaking current

A

400

630

5% rated active load breaking current

A

20

31.5

Rated cable charging breaking current

A

10

Rated no - load transformer breaking   current


No-load current of 1250KVA transformer

Rated short circuit closing current

KV

31.5

50

Load current breaking times

Time

100%/20      30%/75

60%/35        5%/80

1min power frequency withstand voltage

KV

42/48.5

Power frequency tolerance

KV

53

Lightning impulse withstand   pressure

KV

75/85

Sub-closing operation torque

NmN

90180

100200