CQB2H-63 10kA Miniature Circuit Breaker
- Product Details
- Company Profile
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