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TSB7 Mini Circuit Breaker
TSB7 Mini Circuit Breaker



1.Application
TSB7-63 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. 2.Main Technical Parameter
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

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
302C Cold position 1.13In t1h Non-release -
Carried out immediately after previous test 1.45In t<1h Release -
Cold position 2.55In 1s<t<60s
(In32A)
Release Current smoothly rises to specified value within 5s
Cold position 2.55In 1s<t<120s
(In>32A)
Release
-5~+40C 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