1. Application
miniature circuit breakers are mainly used in AC 50Hz circuit with rated voltage 230V/400V, rated current up to 63A or less, protection of control circuit against short circuit and overload current fault. And also have circuit control and isolation function. This circuit breaker is mainly used in all kinds of places such as industry, commerce, high-rise building and civil residence.
Product Standard : GB10963.1
2. Type designation
3. Technical data
|
Model |
Versions |
|
Rated voltage(v) |
230V~(1P)、400V~（2P/3P/4P） |
|
Rated current(A) |
10、16、20、25、32、40、50、63 |
|
Poles : |
1P、2P、3P、4P |
|
Rated breaking capacity(A ) :l |
6000A |
|
Mechanical life & Electrical life: |
6000&4000 |
|
Nominal cross section area S (mm2): |
3.5N |
|
Pollution Degree: |
2 |
|
Protection class: |
IP20 |
|
Overvoltage category : |
Ⅲ |
|
Tripping characteristic |
Mark 2 |
Mark 2 : Tripping characteristic (temperature 30℃)
|
Model |
Tripping Characteristic |
Test current |
Initial situation |
Tripping time |
Test result |
Remarks |
|
A |
B、C、D |
1.13In |
Cold |
t≤1h |
Not-tripping |
Current stablely raised to specified value in 5s |
|
B |
B、C、D |
1.45In |
Following No.1 test |
t≤1h |
|
|
|
C |
B、C、D |
2.25In |
Cold |
1s＜t＜60s(ln≤32A) 1s＜t＜120s(ln＞32A) |
|
Switch on the power supply by closing the auxiliary switch
|
|
D |
B、C、D |
3In、5In、10In |
Cold |
t≤1hs
|
Not-tripping
|
Switch on the power supply by closing the auxiliary switch |
|
E |
B、C、D |
5In、10In、20In |
Cold |
t≤1hs
|
tripping
|
Remark: "cold" means without load before test at the base of the calibration temperature.
4. Overall and mounting dimensions (mm)
Mark 3: Appearance and installing size
|
Poles |
L(mm) |
|
1P |
17.8±0.20 |
|
2P |
35.6±0.40 |
|
3P |
53.4±0.60 |
|
4P |
71.2±0.80 |
6. Certificate
