3p. 4p 200A to 6300A High Quality Air Circuit Breaker

1. Product Introduction:With a rated current from 200A to 6300A, and rated operational voltage 415V 690V, 50Hz, the NA8G series air circuit breaker (hereinafter referred to as "breaker") is mainly used in the distribution network to distribute electric energy and protect lines and power equipment from being damaged by overload, under voltage, short circuit, single-phase grounding and other failures.Having art-oriented appearance, high breaking capacity, zero arcover and vanities of intellectualized protection functions, that breaker can be used for selective protection with accurate action, no unnecessary power cut, and better power supply reliability.The product allows the wire to enter or enter from the lower port, and the open frame (draw-out) circuit breaker has isolation function.That breaker can be widely used for power stations, factories, mines and modern tall buildings, especially the distribution system in the intelligent building, and also widely used in green projects such as wind and solar power generation.This product meets the requirements in IEC/EN 60947-22.Operation conditions2..1 When theambientair temperature is-5C - +40 C, the mean value is no greater than +35C within 24 hours.Note: Ifthe upper limit is higherthan +40C or lower limit lower than -5C in work, discussions shall be made between the user and the manufacture2.2  Altitude: not higher than 2000m for the installation site.2.3  When the ambient air temperature is +40C, the relative humidity of the air shall not be higher than 50%;a higher relative humidity is allowed at a lower temperature; for example, forthe wettest month, the maximum relative humidity averaged shall be 90% while the lowest temperature averaged in that month + 20C , and special measures shall betakenforthecondensation occasionally produced due to temperature change.2.4  Class of pollution: 32.5  The installation category of the breaker' main circuit is IV; when the rated operational voltage of the main circuit is less than or equal to AC400V, The installation category of the control circuit and auxiliary circuit is III, apart from the similarity between the under voltage release coil and the intellectual controller's power transformer primary coil and the breaker;When the rated operational voltage of the major loop is greater than AC400V and less than or equal to AC690V, it is necessary for the control circuit and auxiliary circuit to be isolated from the major loop, and the highest operational voltage of the control circuit and auxiliary circuit is AC400V, the installation category of the control circuit and auxiliary circuit being III.3. Main technical parametersShell grade rated currentInm A160032006300Rated current In A 200,400,630,800,1000,1250,16001600,2000,2500,2900,32004000,50006300Nominal insulation voltage UiV69010001000 Rated operational voltage UeV415 690415 690415 Rated ultimate short circuit breaking capacity leu kA50 25100 65120 Rated service short circuit breaking capacity les kA40 2080 65100 Rated short time withstand current lcw,1s kA40 2080 65100 Number of poles 3P 4P3P 4P3P 4P3PFrequency of operation (number of times/h)201010  Mechanical life300030002000 Number of operationsElectrical Life10001000500 Flashover distance mm 000 Line incoming pattern Wire to enter from the upper or lower portWire to enter from the upper or lower portWire to enter from the upper or lower port  fixed type kg22/26.552.5/66.5- Net weight (3 poles/4 poles)draw-out type kg42.5/5598/121210/233233Size(3 poles/4 poles)fixed type320x(254/324)x258406x(422/537)x329- Height x width x depthdraw-out type351 x(282/352)x352439x(435/550)x445439x(835/928)x501439x928x501Detailed Photos /* 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