China 6ka MCB Miniature Circuit Breaker Mini Circuit Breaker Knb6-63 MCB with Ce CB Semko

Sphere of application Model and meaning
Basic specification and main parameters Dimensions(mm)
The over-current tripping unit protection featureCharacteristics curve
Technique parameter:

Sphere of application
KNB6 High-breaking Miniature Circuit Breaker is nice in appearance, reasonable in structure, sound in feature and high in breaking capacity. Installed with standard din rail, it is convenient and easy in usage. It is mainly used in the line of AC 50/60Hz, rated working voltage to 415V, and rated current to 63A as protection against overload and short-circuit. It can be used as infrequent on-and-off operation and changeover.
It complies with standard of GB10963 and IEC/EN60898.
Basic specification and main parameters

frame class

63A

240V/415V

50/60Hz

6,10,16,20,25,32,40,50,63A

10000A

C

1,2,3,4P

10000

4000

The over-current tripping unit protection feature

Sequence
NO .

Release

Test
current I/In

Start state

Tripping
time

Expected
restlt

1

c

1.13In

Cold state

t≤1h

Not tripping

2

c

1.45In

Start right after
the serial NO .
1 test

t<1h

Tripping

3

c

2.55In

Cold state

1s

Tripping

4

c

5In

Cold state

t≤0.1s

Not tripping

5

c

10In

Cold state

t<0.1s

Tripping

Model and meaning
Dimensions(mm)
Characteristics curve