1. Application
CQB3-80 miniature circuit breaker can be used for equipment protection in power distribution system, protection of control circuit against short-circuit and overload current faults. And also have circuit control and isolation functions.
2. Type designation
3. Technical data
|
Model |
Versions |
|
Rated voltage(v) : |
AC230/400V |
|
Rated current(A) : |
6A、10A、16A、20A、25A、32A、40A、50A、63A、80A |
|
Poles : |
1P 2P 3P 4P |
|
Rated breaking capacity(A ) : |
6000A |
|
Tripping characteristic : |
Mark 2 |
|
Mechanical life : |
10000 |
|
Nominal cross section area |
35 |
|
Pollution Degree : |
2 |
|
Protection class : |
IP20 |
|
Overvoltage category : |
II |
Mark 2 Tripping characteristic :
|
Tripping Characteristic |
Rated current(A) |
Test current A |
Initial situation |
Tripping time |
Test result |
Remarks |
|
B、C |
≤63 |
1.13In |
Cold |
t≥1h |
Not-tripping |
—— |
|
B、C |
＞63 |
t≥2h |
||||
|
B、C |
≤63 |
1.45In |
Following No.1 test |
t＜1h |
Tripping |
Current stablely raised to specified value in 5s |
|
B、C |
＞63 |
t＜2h |
||||
|
B、C |
＞32 |
2.55In |
Cold |
1s＜t＜60s |
Tripping |
|
|
B、C |
≤80 |
|||||
|
B |
≤80 |
3In |
Cold |
t≥0.1s |
Not-tripping |
Switch on the power supply by closing the auxiliary switch |
|
C |
5In |
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|
B |
5In |
Cold |
t＜0.1s |
Tripping |
||
|
C |
10In |
4. Working and the installing condition
In a non explosive dangerous medium, there is not enough gas and dust to erode the metal and destroy the insulation; In the absence of rain and snow; Where there is no obvious shake and shock; Installation place in the external magnetic field in any direction shall not exceed 5 times the geomagnetic field;
5. Overall and Mounting dimensions (mm)
6. Catalogue
