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1. Application |
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DZ50N-63 high switch-off ability miniature circuit breaker is applicable to a line of AC 50Hz/ 60Hz, rated voltage 23/400V and rated current up to 63A, used for overload and short circuit protection. It can also be used for infrequent line conversion under the normal condition.The breaker is applicable to industrial enterprise, commercially district, high-rise building and dwelling house. It conforms with the standards of IEC60898.
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2. Main Technical Parameter |
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| Type |
DZ50-63 |
Pole |
1P |
2P, 3P, 4P |
Rated current (A) |
1,2,3,4,6,10,16,20,25,32,40,50,63 |
Rated voltage(V) |
230 |
400 |
Type of instantaneous release |
B,C,D |
Rated short circuit breaking capacity Icn (KA) |
10 |
| Life (times) |
1-32A |
Electric life |
8000 |
Mechanical life |
20000 |
Operation frequency |
240 times per hour |
| 40-63A |
Electric life |
8000 |
Mechanical life |
20000 |
Operation frequency |
120 times per hour |
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3. Applicable conducting wire |
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| 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 |
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4. The over-current protection property |
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| 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 |
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