miniature circuit breaker,
miniature current circuit breaker
STET-60 Series Black color insert type MCB Circuit Breaker IP20 Protection
STET-60 series high breaking miniature circuit breaker has the features of structure advanced, performance reliable, breaking capacity high, appearance elegant and its shell and parts are made of material with impact resistance, strong flame-retardant feature.
It is suitable to power system of 50or 60 frequency ,Ue 400V and below, Ui 63A and below.
It is mainly applied at office building, residence, for lighting , power distribution and overload and short circuit protection of equipment. Normally, it also can be used as the not frequent transfer of power system. It conforms to the standards IEC60898and GB10963.1.
|Poles||Rated current (A)||Rated short circuit breaking capacity|
|Test breaking capacity(KA)||Power factor|
1)mechanical life:20,000 times(off-on)
2)heat resistance: category 2 (temperature 55°C,relative humidity 95%).
3)wiring is terminal with clamp, cable dia.:25mm2
CURRENT RELEASE CHARACTER DIAGRAM
|Test current(A)||Rated current(A)||Requested time||Result||Start station||Remark|
|1.45In||All||T<1h||trip||heat||Current ascends the requested value stably in 5s|
|2.55In||In<=32A||1s<t<60s||trip||Cool||Auxiliary switch closed, power is on|
|2.55In||In>32A||1s<t<120s||trip||Cool||Auxiliary switch closed, power is on|
|5In(Cmode)||All||t>=0.1s||Don’t trip||Cool||Auxiliary switch closed, power is on|
|10In(Cmode)||All||T<0.1s||trip||Cool||Auxiliary switch closed, power is on|
|10(Dmode)||All||t>=0.1s||Don’t trip||Cool||Auxiliary switch closed, power is on|
Auxiliary switch closed, power is on
Contact Person: Mr. Sunny Zhang