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Our purpose will be to fulfill our shoppers by offering golden assistance, fantastic price and high quality for Hot sale Factory China DAB6 20A Home Circuit Breaker with CE CB Certification, We’ve been looking forward to cooperating with all clients from in the home and overseas. Moreover, customer fulfillment is our eternal pursuit.
Our purpose will be to fulfill our shoppers by offering golden assistance, fantastic price and high quality for China 4.5ka MCB, Miniature Circuit Breaker, With a wide range, good quality, reasonable prices and stylish designs, our merchandise are extensively used in public placesand other industries. Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!

General

FN12-12D/630-20 indoor AC high voltage load switch(Hereinafter clled FNI2-12D load switch is is suitable for three-phase AC distribution system with rated voltage of 12 KV and rated frequency of 5OHz. It is used for opening and closing load current, closed loop current, no-loa transformer and cable charging current, closing short circuit current. The load switch equipped with the earthing switch can withstand the shor circuit current.

FNI2-12IR)D/25-31.5 indoor AC high voltage load switch–fuse combination (hereinafter called FN12-12IRJD combination) is an indoor high voltage switch device which combines FNI2-12D load switch and S□LAJ-12(XRNT□-10)high voltage current limiting fuse. It can break reliably under any current except it is up to short-circuit current. The load switch breaks the working current and the fuse breaks the short circuit current. And the combination breaks any overcurrent between the working current and the full short circuit current, and the fuse breal the load switch through its impactor.

Working Condition

●Ambient air temperature:Max.+40℃;Min.-25℃(Allowed to storage and transportation at-30℃) the average value is not higher than 35℃ with in 24 hours.
●Air relative humidity:Daily average is not greater than 95%, monthly average is not greater than 90% Earthquake intensity: no more than 8 degrees.
●Altitude:not more than 1000m
●No frequent and severe vibration Pollution level:ll
●The surrounding air is not contaminated by corrosive and flammab gases, water vapor, etc.

Technical specification

No.

Ltem

Unit

Data

FN12-12D/630

FN12-12(R)D/630

1

Rated voltage

KV

12

2

Rated frequency

Hz

50

3

Rated current

A

630 XX)

4

Lightning impulse withstand voltage

KV

To earth and phase Io phase75isolating frodure 85

5

1 min power frequency wtthsiand volloge

KV

To earth and phase to phase 42isolaling fracture 48

6

Rated fhermd stability current

KA

20(4S)

7

Rated dynamk current

KA

50

8

Rated dosing current (peak!

KA

50 50

50

9

Rated short drcuif breaking current (Expected value)

KA

31.5

10

Maximum at critical breaking current

A2S

Accorcing to the fuse characteristic curve

11

Minimum breaking currenf

KA

Accorcing to the fuse characteristic curve

12

Rated transfer current

KA

15

13

Maximum breaking current (reference valuel

KA

18

14

Breaking the capacity of the no-kx)d transformer

KVA

1250

15

Raled cable charging current

A

10

16

Raled active tood cunenl breaking limes

Times

> 100

17

The impodor touches lhe load switch opening time

S

0.06

> 0.06

18

Earthing switch Ihermal stabifcty current

KA

20(2S)

19

Earthing switch Ihermal stability current (peak)

KA

50

20

Motor operating power supply voboge

V

AC DC 110220

 Outline overall and installing dimensions

 FKRN12-12D Indoor High Voltage Gas Pressure Load Switch 001

Our purpose will be to fulfill our shoppers by offering golden assistance, fantastic price and high quality for Hot sale Factory China DAB6 20A Home Circuit Breaker with CE CB Certification, We’ve been looking forward to cooperating with all clients from in the home and overseas. Moreover, customer fulfillment is our eternal pursuit.
Hot sale Factory China 4.5ka MCB, Miniature Circuit Breaker, With a wide range, good quality, reasonable prices and stylish designs, our merchandise are extensively used in public placesand other industries. Our products are widely recognized and trusted by users and can meet continuously developing economic and social needs. We welcome new and old customers from all walks of life to contact us for future business relationships and achieving mutual success!


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