MCCB Dam3-250 3p 63-250A Compact Size Molded Case Circuit Breaker

OverviewThe rated current of the Dada DAM3-250 molded case circuit breaker can reach up to 250A. These electrical devices are suitable for power distribution circuits with an alternating current of 50-60Hz and a rated operating current to 1000A. They can also be used in electric motors for infrequent starting and overload protection as well as protection against short circuiting and undervoltage conditions.Compared to the DAM1 series, the DAM3 series are designed for smaller volume, higher breaking capacity, offering better energy savings.Electrical parameters of DAM3-250 molded case circuit breakerRated current of frame size Inm [A] 250Rated current [A]100-250100-225Number of poles2 / 3 / 4Rated operating voltage(AC)50-60HZ [V]400/690DC [V]250/1000Rated impulse withstand voltage Uimp [KV]8Rated insulation voltage Ui [V]750Test voltage at industrial frequency for 1 min [V]3000Rated ultimate short-circuit breaking capacity Icu [KA]BCNS(AC)50-60HZ 220/230V [KA]30365075(AC)50-60HZ 400/415V [KA]18253650(AC)50-60HZ 690V [KA]681215(DC)250V-2 Poles in series18223040(DC)500V-2 Poles in series9121520(DC)750V-4 Poles in series16182230(DC)1000V-4 Poles in series13151825Rated service short-circuit breaking capacity, Ics [KA]    (AC)50-60HZ 220/230V [%Icu]60%60%60%50%(AC)50-60HZ 400/415V [%Icu]60%60%60%50%(AC)50-60HZ 690V [%Icu]60%60%60%50%category of utilization (EN 60947-2)AIsolation conditionBitmapReference standardIEC/EN 60947-2/GB 14048.2InterchangeabilityBitmapVersionsFixedBitmapPlug-inBitmapDraw-out-Physical parameters DAM3-250 molded case circuit breaker EnduranceTotal cycles10000Electrical endurance1500Mechanical endurance8500Basic dimensions-fixed version3/4 Poies W[mm]70(2P) /104 /1393/4 Poies H[mm]5962.5H1[mm]78.5823/4 Poies L[mm]139IntroductionThe DAM3-250 molded case circuit breaker automatically cuts off the current when the current exceeds the release setting. The molded case refers to the plastic insulator used as the frame of the device to insulate the conductor and the metal grounding component.Working principleThe main contact of DAM3-250 molded case circuit breaker is manual manipulation or electric closing. After the main contact is closed, the free release mechanism locks the main contact into the closing position. The overcurrent trip coil and the thermal trip element are connected in series with the main circuit. The undervoltage trip coil and the power supply are connected in parallel.  /* 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