HKB2-63 Series 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.
Main Technical Parameter
Type
HKB2-63
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
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
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
The over-current protection property
Ambient
Temperature
Initial Status
Test Current
Expected Result
Expected Result
Note
30±2℃
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
Release
Current
smoothly rises to specified value within 5s
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