1. General 1.1 Function The LRM7-63 circuit-breakers are used in
domestic installation as well as in commercial and industry
electrical distribution systems, it's protection of circuits
against short-circuit currents, overload currents, ON/OFF,
isolation, 1.2 Selection Tripping curves: B curve
(3-5In):protection for people and big length cables in TN and IT
systems.C curve (5-10In):protection for resistive and inductive
loads with low inrush current. D curve(10-20In) :protection for
circuits which supply loads with high inrush current at the circuit
closing (LV/LV transformers, breakdown lamps)2. Technical
data:Electrical PARAMETERSNo. Of Poles1P, 2P, 3P, 4PRated Current
(In):(A)6A,10A,16A,20A,25A,32A,40A,50A,63ARated
voltage(Un):(V)220V~/230V~/240V~1P, 380V~/400V~/415V ~
(2P,3P,4P)Rated frequency:(Hz)50/60HzRated Insulation voltage
Ui:(V)500VRated impulse withstand
voltage(1.2/50us)Uimp:(V)6000VRated short-circuit
capacity Icn:(A)6000AEnergy limiting class3Instaneous Tripping
current:B Type(3In~5In)C Type(5In~10In)D Type(10In~20In)Grid
distance(short-circuit tests)45mmElectrical life4,000 Nos of
operating cycles at rated currentMechanical
PARAMETERSProtection Degree IP20Material
groupIIIaProtection against extemal influences:EnclosedContact
position indicationRed/GreenMechanical life20,000 Nos of operating
cycles at rated currentContact position
indicatorYesReference ambient calibration air temperature
30ºCInstallationMethod of mountingOn symmetrical Din rail
35mmTerminal connection typeScrew terminal,Cable/U-type
busbar/Pin-type busbarTerminal size top/bottom for
cable25mm²18-4AWGTerminal size top/bottom for
busbar10mm²18-8AWGTightening torque2.5N.mMounting On DIN rail EN
60715 (35mm) by means of fast big clip deviceOperating
meansLeverConnectionFrom top and bottom3. Overall &
Installation Dimensions /* January 22, 2024 19:08:37
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