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1. Application |
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DZ48N-63 miniature circuit breaker is applicable to a line of AC 50Hz/60Hz, 230V in singlepole, 400V in double, three, four poles for protecting overload and short circuit, and rated cur-rent up to 63A. It can also be used for infrequent line conversion under the normal condition.Thebreaker is applicable to lighting distribution system in 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 |
DZ48N-63 |
Pole |
1P |
2P, 3P, 4P |
Rated current (A) |
6,10,16,20,25,32,40,50,63 |
Rated voltage(V) |
230 |
400 |
Type of instantaneous release |
C |
D |
C |
D |
Rated short circuit breaking capacity Icn(KA) |
1-40A: 6
50-63A: 4.5 |
4.5 |
1-40A: 6
50-63A: 4.5 |
4.5 |
| Life (times) |
1-32A |
Electric life |
4000 |
Mechanical life |
6000 |
Operation frequency |
240 times per hour |
| 40-63A |
Electric life |
4000 |
Mechanical life |
6000 |
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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