CQB2-63 6kA Miniature Circuit Breaker
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Single phase and three phase applications
·High Interruption rating capabilities.
·Overload protection
·Short circuit protection
·Positive isolation
Suitable for industrial, commercial, high-rise and civil residences circuit protection.
1 Overview and applications
·Single phase and three phase applications
·High Interruption rating capabilities.
·Overload protection
·Short circuit protection
·Positive isolation
Suitable for industrial, commercial, high-rise and civil residences circuit protection.
2 Type designation
3 Technical data
| Specifications | |
|
Rated insulation voltage |
500V |
|
Rated impulse withstand voltage Uimp |
4000V |
|
Rated current(A) |
6A、10A、16A、20A、25A、32A、40A、50A、63A |
|
Rated frequency |
50Hz / 60Hz |
|
Number of poles |
1P 、1P+N、2P 、3P 、3P+N、4P |
|
Rated breaking capacity Icn=Ics(A) |
6000A |
|
Mechanical life(cycles) |
≥10000 |
|
Electrical life(cycles) |
≥6000 |
|
Tripping characteristics |
B 、 C 、 D |
|
Grid distance |
45mm |
|
Protection degree |
IP20 |
|
Standard |
IEC60898 -1、GB/T10963.1 |
|
Compliant certification |
CCC |
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 Dimensions（unit :mm）
6 Conductor requirements and cross-sectional area
| Copper cross-sectional area(mm2) | Rated current In(A) |
| 1 | In≤6 |
| 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 |
