YUANKY S7-G MCB 1-63A 1P 2P 3P 4P Curve b c d 6ka Miniature Circuit Breaker Mcb

Poles

1P  2P  3P  4P

Rated voltage (Ue)

1P:240/415V~

2/3/4P:415V~

Insulation voltage (Ui)

500V

Rated frequency

50/60Hz

Rated breaking capacity (Icn)

6KA

Rated operating short circuit breaking capacity (Ics)

6KA

Energy limiting class

3

Tripping curve

B  C  D

Electrical and mechanical life

20000

Test Procedure

Type

Test Current

Initial State

Tripping or Non-tripping Time Limit

Expected Result

Remark

A

B、C、D

1.13In

cold

t≤1h

No tripping

B

B、C、D

1.45In

After test A

t<1h

tripping

The current steadly rises to the specified value within 5s

C

B、C、D

2.55In

cold

1s<t<60s(In≤32A)

1s<t<120s(In>32A)

tripping

D

B

3In

cold

t≤0.1s

No tripping

Turn on the auxiliary switch to close the current

C

5In

D

10In

E

B

5In

cold

t<0.1s

tripping

Turn on the auxiliary switch to close the current

C

10In

D

20In