High Breaking Capacity AC 400A to 630A MCCB Molded Case Circuit Breaker

Product DescriptionThe molded case circuit breaker can automatically cut off the current after the current exceeds the trip setting. Molded case refers to the use of plastic insulators as the casing of the device to isolate conductors and grounded metal parts. Molded case circuit breakers typically contain thermal magnetic trip units, while larger models have solid state trip sensors. The trip unit is divided into: thermal magnetic trip and electronic trip. Commonly used rated currents are as follows: 16, 25, 30, 40, 50, 63, 80, 100, 125, 160, 200, 225, 250, 315, 350, 400, 500, 630A.Product FeaturesMolded case circuit breakers are also called device circuit breakers. All parts are sealed in plastic casings. Auxiliary contacts, undervoltage releases and shunt releases are mostly modularized. Due to the very compact structure, molded case circuit breakers are basically impossible to repair. Most of them are manually operated, and electric opening and closing can be selected for large capacity. Due to the application of electronic overcurrent releases, molded case circuit breakers can also be divided into Class A and Class B. Class B has good three-stage protection characteristics, but due to price factors, the use of thermal magnetic releases Class A products have a higher market share. The molded case circuit breaker is to install the contacts, arc extinguishing chamber, release and operating mechanism in a plastic shell. Generally, maintenance is not considered. It is suitable for the protection switch of the branch circuit. The over-current release has thermal magnetic Generally, thermal magnetic molded case circuit breakers are non-selective circuit breakers, which only have two protection modes: overload long time delay and short circuit instantaneous protection. Electronic molded case circuit breakers have overload long time delay, short circuit short Four protection functions of time delay, short circuit instantaneous and ground fault. Some newly launched products of electronic molded case circuit breakers also have regional selective interlocking functions. Most molded case circuit breakers are manually operated, and some have motor operating mechanismsTypeFrame class Rated currentInm (A)Rated currentIn (A)Ratedworking voltageUe(V)Ratedinsulation voltageUi(V)Rated ultimateshort-circuitbreakingcapacityIcu (kA)400/690VRated operatingshort-circuitbreakingcapacityIcs (kA)400/690VGDM1-63L63A6,10,16,20,25,32,40,50,63400V690V25kA18kAGDM1-63M50kA35kAGDM1-125L125A16,20,25,32,40,50,63,80,100,125400V690V35kA22kAGDM1-125M50kA35kAGDM1-250L250A125,140,160,180,200,225,250400V690V35kA25kAGDM1-250M50kA35kAGDM1-400L400A250,315,350,400400V690V50kA35kAGDM1-400M80kA50kAGDM1-400H100kA65kAGDM1-630L630A400,500,630400V690V50kA35kAGDM1-630M80kA50kAGDM1-630H100kA65kAGDM1-800800A630,700,800400V690V100kA65kAGDM1-12501250A800,1000,1250400V690V50kA35kAGDM1-16001600A1250,1600400V690V50kA35kA  Product Parameters Six advantages high standradssaffty protection / battery protection / flame retardant / charge protection / comfortable handle / overload protection  PC materialImported high-quality PC material, high temperature resistance, impact resistance, high strength, non-toxic and tasteless  Thickened handle flexible operationImprove operating comfort and improve apperance plumpness  Bimetal materialInner six angle screw installationExperiment buttonWiring completed Be sure to test for your own safetyRecommend Products   Certifications Manufacturing Technique Professional Electrical Equipment LaboratoryOur company attaches great importance to technological research and development, and strives to build an automated electrical equipment and digital production line base that enhances traditional industries through automation, gathering a highly skilled technical team; Committed to building a professional lightning protection electrical laboratory. Ensuring the stability and innovation of Gandian products.---Lightning Impact Test Room: Conduct various waveform impact tests on lightning protection devices, such as 8/20, 10/350, and 1.2/50us;---SPD safety laboratory: Conduct thermal stability and TOV fault tests, with a test current of 1A-300A;---Environmental laboratory: salt spray, vibration, high and low temperature tests;---Physical and chemical laboratory: material metallographic analysis, spectral analysis, RoHs analysis;---Low voltage test room: leakage marking index, withstand voltage test, flame retardant level;---Mechanics laboratory: pendulum impact, tensile force, pressure, torsion, hardness, and transportation vibration tests.Specialized production process technologyOur company independently develops multiple advanced automatic production and processing lines, plastic injection molding lines,hardware stamping lines, and multiple assembly lines; Integrating automatic equipment such as automatic gluing, automatic soldering, automatic film pressing, transfer printing, laser marking, automatic detection and uploading of data, and