PRODUCTS CATEGORIES
CQB9a-63 Miniature Circuit Case Breaker
1 Application
·Thermal-magnetic overload protection
·Short circuit protection
·Isolation function
·Single phase and three phase applications(220V/380V)
Suitable for industrial, commercial, high-rise and civil residences circuit protection.
Compliant standard: IEC60898-1
Features
·Up to 63A current rating
·Current limiting design
·Three levels of short-circuit protection ,categorized by B、C and D curves.
·Captive screws cannot be lost
·Contact position indicator(red/green)
·Easy installation on DIN rail(TH35-7.5)
2. Type designation
3 Technical data
| Specifications | |
|
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 |
6000A |
|
Mechanical life & Electrical life: |
6000&4000 |
|
Torque(N·m): |
3.5 |
|
Pollution Degree: |
2 |
|
Protection class: |
IP20 |
|
Overvoltage category : |
Ⅲ |
|
Tripping characteristics |
Table1 |
Table1: Tripping characteristic (temperature 30℃)
| Model | Tripping Characteristic | Test current | Initial situation | Tripping time | Test result | Remarks |
|
a |
B、C、D |
1.13ln |
Cold |
t≤1h |
Non-tripping |
Current smoothly rises to specified value in 5s |
|
b |
B、C、D |
1.45ln |
Following No.1 test |
t≤1h |
|
|
|
c |
B、C、D |
2.55ln |
Cold |
1s＜t＜60s(ln≤32A)
1s＜t＜120s(ln＞32A) |
|
|
|
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 |
Remark: "cold" means without load before test at the base of the calibration temperature.
4 Dimensions（unit :mm）
