Plastic case circuit breaker-Miniature circuit breaker
Product Details
Product Details
1. Application
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. The rated breaking capacity is 10000A.
2. Type designation
3. Technical data
Model | Versions |
Rated voltage(v) | 230V(1P)、400V(2~4P) |
Rated current(A) | 63A、80A、100A |
Poles : | 1P、2P、3P、4P |
Rated breaking capacity(A) : | Icu=10000A、Ics=7500A |
Uimp(V) | 8000V |
Tripping characteristic: | Mark 2 |
Mechanical life & Electrical life: | 8500&1500次（operation frequency：120/h） |
Nominal cross section area S (mm2): | Mark 3 |
Pollution Degree: | 2 |
Protection class: | IP20 |
Overvoltage category : | Ⅱ&Ⅲ |
Mark 3: Tripping characteristic (temperature 30℃) :
Model | Rated current(A) | Initial situation | Test current | Tripping time | Remarks |
a | 1.05In | Cold Following No.1 test | t≤1h(In≤63A） t≤2h(In≥63A） | Not-tripping | |
b | 1.3In | Cold | t＜1h(In≤63A） t＜2h(In≥63A） | tripping | Current stablely raised to specified value in 5s |
c | 2In | Cold | 0＜t＜300s | tripping | |
d | 8In | Cold | t≤0.2s | Not-tripping | Switch on the power supply by closing the auxiliary switch |
e | 12In | Cold | t≤0.2s | tripping |
Mark 4: Normal cross section area: ＜50mm2 Tightening torque: 2.5N.m
Rated current(A) | Nominal cross section area S(mm2)） | |
63 | 16 | |
80 | 25 | |
100 | 35 | |
4 Working and the installing condition.
4.1 : Ambient max temperature is no more than +40℃, minimum temperature is not less than -5℃. No more than +35℃ within 24 hours;
4.2 : altitude is no more than 2000m;
4.3 : when the highest temperature reaches 40℃ the air relative humidity of the installing place can't exceed 50%, when in the low temperature it will have the relative higher humidity. When the average largest relative humidity in the most humiddest it is month no more than 90%, then the monthly-average temperature is no more than 25℃. We must take measure of the dew in the surface of the product due to the temperature;
4.4 Installation conditions Any direction of the outer magnetic field of the installation site should not exceed 5 times than earth's magnetic field; residual current operated circuit breaker should be mounted vertically, all places inclination no more than 5 °,power position above the handle , the installation place should be no significant impact
and vibration
5. Overall and mounting dimensions (mm)
Poles : | a | b |
1P | 66±0.64 | 76±0.5 |
2P-4P | 72±0.64 | 75±0.64 |
6. Certificate
