QDW3 series universal Air circuit breaker(hereinafter referred to
as breaker)is suitable for the circuit of AC 50Hz with rated
voltage 400V, 690V and rated current up to 6300A. It is mainly used
to distribute electric energy and protect circuits and power-supply
equipment from overload, under-voltage, short-circuit and
single-phase earthing. with intelligentized and selective
protection functions, the breaker can improve the reliability of
power supply, and avoid unnecessary power failure. The breaker is
applicable for power stations, factories, mines(for 690V) and
modern high-buildings, especially for the distribution system of
intelligentized building. This breaker conforms to IEC60947-2 and
GB14048.2 and CE.Specifications of Q&S brand QDW3 series
Intelligent Air circuit breakerType QDW3
-2000QDW3-3200QDW3-6300Pole 3P, 4P3P, 4P3P, 4PUsing
category BBBRated current In A630, 800, 1000, 1250,
1600, 20002000, 2500, 30004000, 5000, 6300Rated
frequency Hz50/6050/6050/60Rated operation voltage
Ue V400 690400 690400 690Rated insulation
voltage Ui V800800800Arcing distance mm000Rated impulse
withstanding voltage Uimp V800080008000Rated operation short
circuitbreaking capacity
Ics(O-t-CO-t-CO)400Vka5080100690Vka405075Rated limiting short
circuitbreaking capacity Icu(O-t-CO)400Vka80100120690Vka506585Rated
short circuit closing capacity
Icm400Vka176220264690Vka105143187Rated short time
withstandingcurrent Icw(O-t-CO, AC400V 0.4s)400Vka506585Operation
lifeper
hourTimes202010 ElectricalTimes1000500500 MechanicalTimes1000050005000Full
breaking time ms20~3020~3020~30Full closing
time ms55~7055~7055~70Power
consumption3PW36012002000 4PW45017502300Resistance of each
poleFixed typeμ Ω119- Draw out typeμ
Ω201410Dimensions(L*W*H)3P fixed
typemm362*323*402422*323*402 3P draw out
typemm375*461*452435*471*452 4P fixed
typemm457*323*402537*323*402 4P draw out
typemm470*461*452550*471*452 Approximate weight3P fixed
typekg4155 3P draw out typekg7195245 4P fixed
typekg51.565 4P draw out typekg86115260/* January 22,
2024 19:08:37 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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