MCCB Moulded Case Circuit Breaker Cjm1e-250m/3300

  Product DescriptionApplication1.CJMM1 series moulded case circuit breaker(hereinafter referred to as circuit breaker) is pplicable for AC 50/60HZ power distribution network circuit with rated insulation voltage of 800V, rated operation voltage of 690V and rated operation current from 10A to 630A, it's used to distribute power and prevent circuit and power supply equipment from damage due to overload, short circuit, under voltage and other faults, it's also used for infrequent start of motor as well as overload, short circuit and under voltage protection 2.This circuit breaker owns advantages of small volume, high breaking capacity, short arcing (or noarcing)etc, it can be equipped with accessories like alarm contact, shunt release, auxiliary contact etc, it's an ideal product for user. 3.The residual current circuit breaker can either be vertically installed (vertical installation) or be horizontally installed (horizontal installation) The product is in accordance with the standards of IEC60947-2 and Gb140482 Classification1.By breaking capacity: a standard type(type S) b higher breaking capacity type(type H)2.By connection mode: a front board connection, b back board connection, c plugin type3.By operation mode: a direct handle operation, b rotation handle operation,c electrical operation4.By number of poles: 1P,2P, 3P, 4P5.By accessory: alarm contact, auxiliary contact, shunt release, under voltage release.Normal Service Condition1.The altitude of the installation site shall not exceed 2000m2.Ambient air temperaturea.The ambient air temperature shall not exceed +40ºCb.The average value shall not exceed +35ºC with in 24 hoursc.The ambient air temperature shall not be less than-5ºC3.Atmosphere conditiona.There lative humidity of atmosp here shall not exceed 50% at highest temperature of +40ºC,and it can be higher atalower temperature,when theaver agelowest temperature in the wettest month doesn't exceed 25ºC can be 90%,conden sationon product surfacedue to temperature change must be takenin to account.4.The pollution level is class 3Table1Accessory nameElectronic releaseCompound releaseAuxiliary contact,under voltage release,alam contact287378Two auxiliary contact sets,alarm contact268368Shunt release, alarm contact, auxiliary contact238348Under voltage release,alarm contact248338Auxiliary contact alarm contact228328Shunt release alarm contact218318Auxiliary contact under-voltage release270370Two auxiliary contact sets260360Shunt release under-voltage release250350Shunt release auxiliary contact240340Under-voltage release230330Auxiliary contact220320Shunt release210310Alarm contact208308No accessory200300Main Technical Parameter1.Rated value of circuit breakersModelImax(A)Specifications(A)Rated Operation Voltage(V)Rated Insulation Voltage(V)Icu(kA)Ics(kA)Number of Poles (P)Arcing Distance(mm)CJMM1-63S636,10,16,2025,32,40,50,6340050010*5*3≤50CJMM1-63H6340050015*10*3,4CJMM1-100S10016,20,25,3240,50,63,80,10069080035/1522/53≤50CJMM1-100H10040080050352,3,4CJMM1-225S225100,125,160,180,200,22569080035/1525/53≤50CJMM1-225H22540080050352,3,4CJMM1-400S400225,250,315,350,40069080050/1535/83,4≤100CJMM1-400H40040080065353CJMM1-630S630400,500,63069080050/1535/83,4≤100CJMM1-630H63040080065453Note: When the test parameters for the 400V, 6A without heating release 2.Inverse time breaking operation characteristic when each pole of overcurrent release for power distribution is powered on at the same time Item of test Current (I/In)Test time areaInitial stateNon-tripping current 1.05In2h(n>63A),1h(n63A),1h(n2hCold State 1.2In≤2hProceeded immediately after the No.1 test 1.5In≤4minCold State10≤In≤225≤8minCold State225≤In≤6307.2In4s≤T≤10sCold State10≤In≤2256s≤T≤20sCold State225≤In≤6304.The instantaneous operation characteristic of circuit breaker for power distribution shall be set as 10in+20%, and the one of circuit breaker formotor protection shall be set as12ln±20%Outline Installation Size About Us   More products       /* 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