Circuit Breaker>>Miniature Circuit Breaker>>DZ50-63 Series
1.Application
DZ50-63 high switch-off ability miniature circuit breaker is applicable to a line of AC 50Hz/60Hz, rated voltage 230/400V and rated current up to 63A, used for overload and short circuitprotection. It can also be used for infrequent line conversion under the normal condition.Thebreaker is applicable to industrial enterprise, commercially district, high-rise building and dwell-ing house. It conforms with the standards of IEC60898.
2.Main Technical Parameter
Type |
DZ50-63 |
|||
|---|---|---|---|---|
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 |
20000 |
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Operation frequency |
240 times per hour |
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40-63A |
Electric life |
8000 |
||
Mechanical life |
20000 |
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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 |