Circuit Breaker>>Miniature Circuit Breaker>>DZ51-63 Series
1.Application
DZ51-63 is mainly suitable for overload and short circuit protection. It is especially used forillumination and distribution in industry and commerce, etc. It has pleasing outlook & high break-ing capacity, reliable performance, high inflammable resistance and shock resistance for longservice life. It is within the circuit of AC 50/60Hz, rated voltage of single pole up to 240V, two,three or four poles up to 415V. It can also be used for an unfrequent change over of the circuitand illumination under normal condition.It conforms with the standards of IEC60898.
2.Main Technical Parameter
Type |
DZ51-63 |
|||
|---|---|---|---|---|
Pole |
1P |
2P, 3P, 4P |
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Rated current (A) |
1,2,3,4,6,10,16,20,25,32,40,50,63 |
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Rated voltage(V) |
230 |
400 |
||
Type of instantaneous release |
B,C,D |
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Rated short circuit breaking capacity Icn(KA) |
10 |
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Life (times) |
1-32A |
Electric life |
8000 |
|
Mechanical life |
6000 |
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Operation frequency |
240 times per hour |
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40-63A |
Electric life |
8000 |
||
Mechanical life |
6000 |
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Operation frequency |
120 times per hour |
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3.Applicable conducting wire
Rated current(A) |
Nominal cross section of wire mm2 |
|---|---|
1-6A |
1 |
10A |
1.5 |
16,20A |
2.5 |
25A |
4 |
32A |
6 |
40,50A |
10 |
63A |
16 |
4.The over-current protection property
Ambient Temperature |
Initial Status |
Test Current |
Expected Result |
Expected Result |
Note |
|---|---|---|---|---|---|
30±2oC
| Cold position |
1.13In |
t≥1h |
Non-release |
- |
Carried out immediately after previous test |
1.45In |
t<1h |
Release |
- |
|
Cold position |
2.55In |
1s<t<60s (In≤32A) |
Release |
Current smoothly rises to specified value within 5s |
|
Cold position |
2.55In |
1s<t<120s (In>32A) |
Release |
||
-5~+40oC
| Cold position |
3In |
t≥0.1s |
Non-release |
Type B |
Cold position |
5In |
t<0.1s |
Release |
Type B |
|
Cold position |
5In |
t≥0.1s |
Non-release |
Type C |
|
Cold position |
10In |
t<0.1s |
Release |
Type C |
|
Cold position |
10In |
t≥0.1s |
Non-release |
Type D |
|
Cold position |
20In |
t<0.1s |
Release |
Type D |