United Petroleum Services FZE

Circuit Breaker>>Miniature Circuit Breaker>>DZ48N-63 Series

 

1.Application

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.

2.Main Technical Parameter

 

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


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