Product DescriptionGeneral1.Application:For protecting cables and
equipments against overload and short circuit.2.General rules for
choosing MCB. a.Technical data of the network at the point
considered: The earthing systems, short-circuit
current at the circuit breaker installation point, which must
always be less than the breaking capacity of this
device,network normal
voltage. b.There are 3 curve characteristics for
magnetic operation: B curve (3-5 In) protection
and control of the circuits against length cables in TN and IT
systems. C curve (5-10 In) protection and
control of the circuits against overloads and short-circuits;
protection for resistive and inductive loads with low
inrush current. D
curve(10-20 In) protection and control of the circuits against
overloads and short-circuits; protection for circuits which
supply loads with high
inrush current at the circuit closing (LV/LV transformers,
breakdown lamps).Temperature DeratingPlease refer to table below
for temperature compensation correctionRatedCurrent
In(A)Temperature compensation coefficient under various operational
temperature-10ºC0ºC10ºC20ºC30ºC40ºC50ºC55ºC60ºC7~61.20 1.14 1.09 1.05 1.00 0.96 0.80 0.75 0.70 10~321.18 1.12 1.08 1.04 1.00 0.96 0.92 0.88 0.84 40~601.16 1.12 1.07 1.03 1.00 0.97 0.87 0.83 0.80
Product Parameters Standard IEC/EN
60898-1ElectricalfeaturesRated current
InA1,2,4,6,10,16,20,25,32,40,50,63PolesP1,2,3,4Rated voltage UeVAC
240/415lnsulation voltage UiV500Rated frequencyHz50/60Rated
breaking capacityA750010000Rated impulse withstand voltage(1.2/50)
UimpV4000Dielectric test voltage at ind.Freq. for 1minkV2Pollution
degree 2Thermo-magnetic release
characteristic B,C,DMechanicalfeaturesElectrical
lifet4000Mechanical lifet10000Protection degree IP20Reference
temperature for settingof thermal elementºC30Ambient
temperature(with daily average ≤35ºC)ºC-5~+40(Special application
pleaserefer to temperature compensation correction)Storage
temperatureºC-25~+70lnstallationTerminal connection
type Cable/Pin-type busbar/U type busbarTerminal size top /
bottom for cablemm²25AWG18-3Terminal size top / bottom for
busbarmm²25AWG18-3Tightening torqueN*m2In-Ibs.18Mounting On
DIN rail EN 60715(35mm)by means of fast clip
deviceConnection From top and bottom Detailed
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