CQB2H-63 10kA Miniature Circuit Breaker
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Features
·Overload & short circuit protection
·Positive isolation
·High breaking capacity up to10KA
·Comprehensive range of accessories suitable for subsequent installation
1 Application
Suitable for industrial, commercial, high-rise and civil residences circuit protection.
Features
·Overload & short circuit protection
·Positive isolation
·High breaking capacity up to10KA
·Comprehensive range of accessories suitable for subsequent installation
2 Type designation
3 Technical data
| Specifications | |
|
Rated voltage(V) |
230V/400V~(1P)、400V~（2P/3P/4P） |
|
Rated current(A) |
6、10、16、20、25、32、40、50、63 |
|
Number of poles |
1P、2P、3P、4P |
|
Rated short circuit breaking lcn(A) |
10000 |
| Electrical & Mechanical life |
Electrical≥6000，Mechanical ≥20000 |
|
Torque（N·m） |
3.5 |
|
Pollution class |
2 |
|
Protection degree |
IP20 |
|
Overvoltage category |
Ⅱ、Ⅲ |
|
Tripping characteristics |
Table1 |
| Standards | IEC60898-1、GB/T10963.1 |
Table 1 Tripping characteristics（Reference temperature 30℃）
| Test | Curve | Test current ln(A) | Status | Time limit for tripping or non-tripping | Expected result | Remark |
|
a |
B、C、D |
1.13ln |
Cold |
t≤1h |
Non-tripping |
Current smoothly rises to specified value within 5s |
|
b |
B、C、D |
1.45ln |
Following item a test |
t＜1h |
Tripping |
|
|
c |
B、C、D |
2.55ln |
Cold |
1s＜t＜60s(ln≤32A) 1s＜t＜120s(ln＞32A) |
Tripping |
|
|
d |
B C D |
3ln 5ln 10ln |
Cold |
t≤0.1s |
Non-tripping |
Switch on the power supply by closing the auxiliary switch |
|
e |
B C D |
5ln 10ln 20ln |
Cold |
t＜0.1s |
Tripping |
Switch on the power supply by closing the auxiliary switch |
Note: The term “cold ” means that the test is carried out at a reference calibration temperature without load before the test.
4 Order Specifications
5 Conductor requirements and cross-sectional area
| Copper cross-sectional area (mm2) | Rated current In(A) |
|
1.5 |
6＜In≤13 |
|
2.5 |
13＜In≤20 |
|
4 |
20＜In≤25 |
|
6 |
25＜In≤32 |
|
10 |
32＜In≤50 |
|
16 |
50＜In≤63 |
6 Dimensions（unit :mm）
7 Tripping curve
