1. Application
Miniature Circuit Breakers are mainly used in AC 50Hz/60Hz circuit with rated voltage 230V, rated current up to 40A or less, and rated operating breaking capacity no more than 3000A power distribution system, protection of control circuit against short circuit and overload current fault. And also have circuit control and isolation function. The product is same as single pole DZ47 miniature circuit breaker, the difference is the product can cut off phase and neuter wires at same time when current faults happen.
3. Technical data
|
Model |
Versions |
|
Rated voltage(v) |
230 V |
|
Rated current(A) |
6、10、16、20、25、32、40 |
|
Poles : |
1P+N |
|
Rated breaking capacity(A) : |
3000 |
|
Tripping characteristic: |
Mark 2 |
|
Mechanical life & Electrical life: |
4000 |
|
Nominal cross section area S (mm2): |
Mark 3 |
|
Tightening torque (N-m): |
1.5 |
|
Pollution Degree: |
2 |
|
Protection class: |
IP20 |
|
Overvoltage category : |
Ⅱ |
Mark 2: Tripping characteristic (temperature 30℃) :
|
Model |
Tripping Characteristic Rated current(A)
|
Test current (A)
|
Tripping time (t)
|
Test result
|
Initial situation |
|
|
Delay
|
B、C、D
|
Any value
|
1.13In
|
t≤1h
|
Not-tripping
|
Cold
|
|
Delay
|
B、C、D
|
Any value
|
1.45In
|
t≤1h
|
tripping
|
Heat
|
|
Delay
|
B、C、D
|
32A≤
|
2.55In
|
1s＜t＜60s
|
tripping
|
Cold
|
|
Delay
|
B、C、D
|
40A
|
2.55In
|
1s＜t＜120s
|
Not-tripping
|
Cold
|
|
Instant
|
B、C、D
|
Any value
|
3、5、10In
|
t≤0.1s
|
tripping
|
Cold
|
|
Instant
|
B、C、D
|
Any value
|
5、10、20In
|
t≤0.1s
|
Not-tripping
|
Cold
|
|
Rated current(A) |
Nominal cross-sectional area of the copper conductor （mm2） |
|
|
In≤6 |
1 |
|
|
6＜In≤13 |
1.5 |
|
|
13＜In≤20 |
2.5 |
|
|
20＜In≤25 |
4 |
|
|
25＜In≤32 |
6 |
|
|
32＜In≤50 |
10 |
|
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)
6. Certificate
