[{"data":1,"prerenderedAt":2056},["ShallowReactive",2],{"blog-post-de-kabelquerschnitt-sicherungsautomat":3,"blog-alternates-cable-cross-section-breaker":474},{"id":4,"title":5,"articleId":6,"body":7,"category":454,"date":455,"description":456,"extension":457,"lastUpdated":458,"locale":459,"meta":460,"navigation":461,"path":462,"publishDate":455,"readTime":463,"refreshInterval":464,"seo":465,"slug":466,"stem":467,"tags":468,"__hash__":473},"blog\u002Fblog\u002Fcable-cross-section-breaker.de.md","Kabelquerschnitt für Sicherungsautomat: Welches Kabel für welche Sicherung?","cable-cross-section-breaker",{"type":8,"value":9,"toc":443},"minimark",[10,15,23,28,31,152,156,159,165,311,318,324,328,374,378,388,392,403,417,421,428,431,435],[11,12,14],"h1",{"id":13},"kabelquerschnitt-für-sicherungsautomat","Kabelquerschnitt für Sicherungsautomat",[16,17,18,22],"p",{},[19,20,21],"strong",{},"Die Sicherung schützt das Kabel, nicht das Gerät."," Wird ein zu dünnes Kabel an einem zu großen Sicherungsautomaten betrieben, kann das Kabel überhitzen und einen Brand verursachen. Die richtige Zuordnung von Kabelquerschnitt und Sicherungsnennstrom ist daher sicherheitskritisch und in der AREI-Norm verbindlich geregelt.",[24,25,27],"h2",{"id":26},"schnellübersicht-automat-mindestquerschnitt","Schnellübersicht: Automat → Mindestquerschnitt",[16,29,30],{},"Diese Übersicht liest Tabelle 4.11 in der Richtung, in der auf der Baustelle gefragt wird: Der Automat steht fest, gesucht ist der kleinste zulässige Querschnitt in Kupfer.",[32,33,34,50],"table",{},[35,36,37],"thead",{},[38,39,40,44,47],"tr",{},[41,42,43],"th",{},"Sicherungsautomat",[41,45,46],{},"Mindest-Kabelquerschnitt",[41,48,49],{},"Typische Anwendung",[51,52,53,65,76,87,98,109,120,131,142],"tbody",{},[38,54,55,59,62],{},[56,57,58],"td",{},"10 A",[56,60,61],{},"1,5 mm² (Tabelle 4.11 erlaubt 1 mm², Tabelle 5.1 lässt diesen Querschnitt in festen Leitungen jedoch nicht zu)",[56,63,64],{},"Beleuchtung",[38,66,67,70,73],{},[56,68,69],{},"16 A",[56,71,72],{},"1,5 mm² nach Tabelle 4.11; für Steckdosenstromkreise jedoch mindestens 2,5 mm² nach 5.2.1.2",[56,74,75],{},"Beleuchtung, Kreise ohne Steckdosen",[38,77,78,81,84],{},[56,79,80],{},"20 A",[56,82,83],{},"2,5 mm² als Grenze aus Tabelle 4.11; Verlegeart, Umgebung und Spannungsfall können einen größeren Querschnitt verlangen",[56,85,86],{},"Zugeordneter Endstromkreis",[38,88,89,92,95],{},[56,90,91],{},"25 A",[56,93,94],{},"4 mm²",[56,96,97],{},"Endstromkreis mit höherer Last",[38,99,100,103,106],{},[56,101,102],{},"32 A",[56,104,105],{},"6 mm²",[56,107,108],{},"Kochfeld, Durchlauferhitzer",[38,110,111,114,117],{},[56,112,113],{},"40 A",[56,115,116],{},"6 mm² (AREI-Minimum laut Tabelle 4.11: 6 mm² → max. 40-A-LS); für Hauptzuleitungen ist 10 mm² praxisüblich (Reserve, Spannungsfall)",[56,118,119],{},"Hauptschalter, Zuleitung",[38,121,122,125,128],{},[56,123,124],{},"63 A",[56,126,127],{},"10 mm²",[56,129,130],{},"Zuleitung Unterverteilung",[38,132,133,136,139],{},[56,134,135],{},"80 A",[56,137,138],{},"16 mm²",[56,140,141],{},"Zuleitung, Hauptschalter",[38,143,144,147,150],{},[56,145,146],{},"100 A",[56,148,149],{},"25 mm²",[56,151,141],{},[24,153,155],{"id":154},"die-vollständige-tabelle-411","Die vollständige Tabelle 4.11",[16,157,158],{},"Im AREI selbst steht die Zuordnung in der umgekehrten Richtung: je Leiterquerschnitt das größte zulässige Kaliber der Schutzeinrichtung — und zwar getrennt für Schmelzsicherung und Leitungsschutzschalter. Für dieselbe Leitung liegt die Grenze der Schmelzsicherung deshalb stets ein Kaliber unter der des Automaten.",[16,160,161],{},[162,163,164],"em",{},"Tabelle 4.11 — Kaliber der Schutzeinrichtung je nach Leiterquerschnitt (AREI 4.4.1.4)",[32,166,167,183],{},[35,168,169],{},[38,170,171,174,177,180],{},[41,172,173],{},"Leiterquerschnitt",[41,175,176],{},"Max. Sicherung",[41,178,179],{},"Max. Leitungsschutzschalter",[41,181,182],{},"Einsatz in hauswirtschaftlichen Anlagen",[51,184,185,199,212,224,236,248,258,268,279,289,299],{},[38,186,187,190,193,196],{},[56,188,189],{},"0,5 mm²",[56,191,192],{},"2 A",[56,194,195],{},"4 A",[56,197,198],{},"nur Steuer-, Überwachungs-, Melde- und Messkreise",[38,200,201,204,206,209],{},[56,202,203],{},"0,75 mm²",[56,205,195],{},[56,207,208],{},"6 A",[56,210,211],{},"nur integrierte Stromkreise in Verteilern",[38,213,214,217,219,221],{},[56,215,216],{},"1 mm²",[56,218,208],{},[56,220,58],{},[56,222,223],{},"keine zulässige Ausnahme nach Tabelle 5.1",[38,225,226,229,231,233],{},[56,227,228],{},"1,5 mm²",[56,230,58],{},[56,232,69],{},[56,234,235],{},"Stromkreise ohne Steckdosen",[38,237,238,241,243,245],{},[56,239,240],{},"2,5 mm²",[56,242,69],{},[56,244,80],{},[56,246,247],{},"allgemein zulässig",[38,249,250,252,254,256],{},[56,251,94],{},[56,253,80],{},[56,255,91],{},[56,257,247],{},[38,259,260,262,264,266],{},[56,261,105],{},[56,263,102],{},[56,265,113],{},[56,267,247],{},[38,269,270,272,275,277],{},[56,271,127],{},[56,273,274],{},"50 A",[56,276,124],{},[56,278,247],{},[38,280,281,283,285,287],{},[56,282,138],{},[56,284,124],{},[56,286,135],{},[56,288,247],{},[38,290,291,293,295,297],{},[56,292,149],{},[56,294,135],{},[56,296,146],{},[56,298,247],{},[38,300,301,304,306,309],{},[56,302,303],{},"35 mm²",[56,305,146],{},[56,307,308],{},"125 A",[56,310,247],{},[16,312,313,314,317],{},"Die drei kleinsten Zeilen der Tabelle bleiben in einer normalen Hausinstallation unerreichbar. AREI 5.2.1.2 verbietet isolierte Leiter unter 2,5 mm², sofern sie nicht Bestandteil einer Maschine oder eines Geräts sind. Zulässig sind allein die Ausnahmen der Tabelle 5.1: 1,5 mm² für Stromkreise ohne Steckdosen, 0,75 mm² für in Verteilern integrierte Stromkreise, die eine Einzelsteckdose versorgen, und 0,5 mm² für Steuer-, Überwachungs-, Melde- und Messkreise. ",[19,315,316],{},"1 mm² kommt in Tabelle 5.1 nicht vor"," — der Tabellenwert „6 A Sicherung \u002F 10 A Automat“ führt für eine ortsfeste Leitung also nirgendwo hin.",[16,319,320,323],{},[19,321,322],{},"Wichtig:"," Tabelle 4.11 nennt den maximalen Sicherungsautomaten je Querschnitt für hauswirtschaftliche Anlagen. Sie weist nicht allein nach, dass eine Leitung unter jeder Verlegebedingung ausreichend belastbar ist. Isolierung, Leitungsaufbau, Verlegeart, Umgebungstemperatur und Spannungsfall sind zusätzlich zu bewerten. Für nicht-hauswirtschaftliche Anlagen gilt die Tabelle nicht; dort wird die Strombelastbarkeit nach den Regeln des Fachs berechnet.",[24,325,327],{"id":326},"arei-grundlagen","AREI-Grundlagen",[32,329,330,340],{},[35,331,332],{},[38,333,334,337],{},[41,335,336],{},"AREI Artikel",[41,338,339],{},"Regelung",[51,341,342,350,358,366],{},[38,343,344,347],{},[56,345,346],{},"Art. 4.4.1.4",[56,348,349],{},"Tabelle 4.11: Maximale Nennstromstärke von Sicherung und Leitungsschutzschalter je Leiterquerschnitt für hauswirtschaftliche Anlagen",[38,351,352,355],{},[56,353,354],{},"Art. 5.2.1.2",[56,356,357],{},"Wahl elektrischer Leitungen: Querschnitte unter 2,5 mm² verboten, Ausnahmen nach Tabelle 5.1 (1,5 mm² für Stromkreise ohne Steckdosen)",[38,359,360,363],{},[56,361,362],{},"Tabelle 5.1",[56,364,365],{},"Elektrische Leitungen, bei denen der Querschnitt weniger als 2,5 mm² betragen darf: 1,5 mm², 0,75 mm² und 0,5 mm² mit jeweils festgelegtem Einsatz",[38,367,368,371],{},[56,369,370],{},"Art. 5.2.5",[56,372,373],{},"Spannungsänderung (Spannungsfall) in Leitungen muss auf die in den Regeln des Fachs beschriebenen Werte begrenzt werden",[24,375,377],{"id":376},"warum-ist-das-wichtig","Warum ist das wichtig?",[16,379,380,381,384,385],{},"Ein Kabel mit zu kleinem Querschnitt wird bei hoher Last warm. Wenn die Sicherung zu groß dimensioniert ist, löst sie nicht rechtzeitig aus — das Kabel überhitzt und es entsteht ",[19,382,383],{},"Brandgefahr",". Deshalb gilt immer: ",[19,386,387],{},"Die Sicherung muss kleiner oder gleich der Strombelastbarkeit des Kabels sein.",[24,389,391],{"id":390},"spannungsfall-beachten","Spannungsfall beachten",[16,393,394,395,398,399,402],{},"Bei langen Leitungsstrecken (z. B. vom Verteiler im Keller zur Garage) kann der Spannungsfall zu groß werden. AREI 5.2.5 – in der deutschen Fassung „Spannungsänderung“ – nennt selbst keinen Prozentsatz, sondern verweist auf die Regeln des Fachs. Zur Vorprüfung werden üblicherweise ",[19,396,397],{},"3 % für Beleuchtung"," und ",[19,400,401],{},"5 % für andere Endstromkreise"," verwendet.",[16,404,405,406,411,412,416],{},"Wie Länge, Last und Phase zusammenwirken, erklärt der Leitfaden ",[407,408,410],"a",{"href":409},"\u002Fde\u002Fblog\u002Fspannungsfall-berechnen-kabelquerschnitt","Spannungsfall berechnen und Kabelquerschnitt wählen",". Alternativ können Sie direkt den ",[407,413,415],{"href":414},"\u002Fde\u002Ftools\u002Fkabelquerschnitt-rechner","kostenlosen Rechner"," verwenden.",[24,418,420],{"id":419},"häufiger-fehler-bei-der-keuring","Häufiger Fehler bei der Keuring",[16,422,423,424,427],{},"Einer der häufigsten Mängel bei der Elektrokontrolle: ",[19,425,426],{},"Sicherungsautomat zu groß für den installierten Kabelquerschnitt."," Besonders bei Altinstallationen mit 1,5 mm² Leitungen, die nachträglich mit 20-A-Automaten abgesichert wurden.",[16,429,430],{},"Beim Austausch alter Schmelzsicherungen gegen Automaten lohnt ein Blick in beide Spalten: Eine 1,5-mm²-Leitung an einer 10-A-Schmelzsicherung ist zulässig, mit einem 16-A-Automaten ebenfalls — ein 20-A-Automat auf derselben Leitung ist es nicht.",[24,432,434],{"id":433},"verwandte-artikel","Verwandte Artikel",[16,436,437,438,442],{},"Dokumentieren Sie Kabelquerschnitte und Schutzgeräte mit ",[407,439,441],{"href":440},"\u002Fde","PlanElec",". Die unterstützte Selbstkontrolle ersetzt weder eine vollständige Dimensionierung noch die offizielle Kontrolle.",{"title":444,"searchDepth":445,"depth":445,"links":446},"",2,[447,448,449,450,451,452,453],{"id":26,"depth":445,"text":27},{"id":154,"depth":445,"text":155},{"id":326,"depth":445,"text":327},{"id":376,"depth":445,"text":377},{"id":390,"depth":445,"text":391},{"id":419,"depth":445,"text":420},{"id":433,"depth":445,"text":434},"faq","2026-03-18","Kabelquerschnitte je Sicherungsautomat nach AREI 4.4.1.4 und 5.2.1.2 — mit der vollständigen Tabelle 4.11 für Sicherung und Leitungsschutzschalter.","md","2026-08-17","de",{},true,"\u002Fblog\u002Fcable-cross-section-breaker.de","6 min",12,{"title":5,"description":456},"kabelquerschnitt-sicherungsautomat","blog\u002Fcable-cross-section-breaker.de",[469,470,471,472],"kabelquerschnitt","sicherungsautomat","arei","elektroinstallation","SQtH9J-7yqt7Eyw19oF8-fWU2iqyLs1GM97F42PayXw",[475,802,1223,1641],{"id":4,"title":5,"articleId":6,"body":476,"category":454,"date":455,"description":456,"extension":457,"lastUpdated":458,"locale":459,"meta":799,"navigation":461,"path":462,"publishDate":455,"readTime":463,"refreshInterval":464,"seo":800,"slug":466,"stem":467,"tags":801,"__hash__":473},{"type":8,"value":477,"toc":790},[478,480,484,486,488,574,576,578,582,708,712,716,718,754,756,762,764,770,776,778,782,784,786],[11,479,14],{"id":13},[16,481,482,22],{},[19,483,21],{},[24,485,27],{"id":26},[16,487,30],{},[32,489,490,500],{},[35,491,492],{},[38,493,494,496,498],{},[41,495,43],{},[41,497,46],{},[41,499,49],{},[51,501,502,510,518,526,534,542,550,558,566],{},[38,503,504,506,508],{},[56,505,58],{},[56,507,61],{},[56,509,64],{},[38,511,512,514,516],{},[56,513,69],{},[56,515,72],{},[56,517,75],{},[38,519,520,522,524],{},[56,521,80],{},[56,523,83],{},[56,525,86],{},[38,527,528,530,532],{},[56,529,91],{},[56,531,94],{},[56,533,97],{},[38,535,536,538,540],{},[56,537,102],{},[56,539,105],{},[56,541,108],{},[38,543,544,546,548],{},[56,545,113],{},[56,547,116],{},[56,549,119],{},[38,551,552,554,556],{},[56,553,124],{},[56,555,127],{},[56,557,130],{},[38,559,560,562,564],{},[56,561,135],{},[56,563,138],{},[56,565,141],{},[38,567,568,570,572],{},[56,569,146],{},[56,571,149],{},[56,573,141],{},[24,575,155],{"id":154},[16,577,158],{},[16,579,580],{},[162,581,164],{},[32,583,584,596],{},[35,585,586],{},[38,587,588,590,592,594],{},[41,589,173],{},[41,591,176],{},[41,593,179],{},[41,595,182],{},[51,597,598,608,618,628,638,648,658,668,678,688,698],{},[38,599,600,602,604,606],{},[56,601,189],{},[56,603,192],{},[56,605,195],{},[56,607,198],{},[38,609,610,612,614,616],{},[56,611,203],{},[56,613,195],{},[56,615,208],{},[56,617,211],{},[38,619,620,622,624,626],{},[56,621,216],{},[56,623,208],{},[56,625,58],{},[56,627,223],{},[38,629,630,632,634,636],{},[56,631,228],{},[56,633,58],{},[56,635,69],{},[56,637,235],{},[38,639,640,642,644,646],{},[56,641,240],{},[56,643,69],{},[56,645,80],{},[56,647,247],{},[38,649,650,652,654,656],{},[56,651,94],{},[56,653,80],{},[56,655,91],{},[56,657,247],{},[38,659,660,662,664,666],{},[56,661,105],{},[56,663,102],{},[56,665,113],{},[56,667,247],{},[38,669,670,672,674,676],{},[56,671,127],{},[56,673,274],{},[56,675,124],{},[56,677,247],{},[38,679,680,682,684,686],{},[56,681,138],{},[56,683,124],{},[56,685,135],{},[56,687,247],{},[38,689,690,692,694,696],{},[56,691,149],{},[56,693,135],{},[56,695,146],{},[56,697,247],{},[38,699,700,702,704,706],{},[56,701,303],{},[56,703,146],{},[56,705,308],{},[56,707,247],{},[16,709,313,710,317],{},[19,711,316],{},[16,713,714,323],{},[19,715,322],{},[24,717,327],{"id":326},[32,719,720,728],{},[35,721,722],{},[38,723,724,726],{},[41,725,336],{},[41,727,339],{},[51,729,730,736,742,748],{},[38,731,732,734],{},[56,733,346],{},[56,735,349],{},[38,737,738,740],{},[56,739,354],{},[56,741,357],{},[38,743,744,746],{},[56,745,362],{},[56,747,365],{},[38,749,750,752],{},[56,751,370],{},[56,753,373],{},[24,755,377],{"id":376},[16,757,380,758,384,760],{},[19,759,383],{},[19,761,387],{},[24,763,391],{"id":390},[16,765,394,766,398,768,402],{},[19,767,397],{},[19,769,401],{},[16,771,405,772,411,774,416],{},[407,773,410],{"href":409},[407,775,415],{"href":414},[24,777,420],{"id":419},[16,779,423,780,427],{},[19,781,426],{},[16,783,430],{},[24,785,434],{"id":433},[16,787,437,788,442],{},[407,789,441],{"href":440},{"title":444,"searchDepth":445,"depth":445,"links":791},[792,793,794,795,796,797,798],{"id":26,"depth":445,"text":27},{"id":154,"depth":445,"text":155},{"id":326,"depth":445,"text":327},{"id":376,"depth":445,"text":377},{"id":390,"depth":445,"text":391},{"id":419,"depth":445,"text":420},{"id":433,"depth":445,"text":434},{},{"title":5,"description":456},[469,470,471,472],{"id":803,"title":804,"articleId":6,"body":805,"category":454,"date":455,"description":1212,"extension":457,"lastUpdated":458,"locale":1213,"meta":1214,"navigation":461,"path":1215,"publishDate":455,"readTime":463,"refreshInterval":464,"seo":1216,"slug":6,"stem":1217,"tags":1218,"__hash__":1222},"blog\u002Fblog\u002Fcable-cross-section-breaker.en.md","Cable Cross-Section per Circuit Breaker: Which Cable for Which Breaker?",{"type":8,"value":806,"toc":1203},[807,811,817,821,824,925,929,932,937,1076,1083,1089,1093,1136,1140,1150,1154,1165,1178,1182,1189,1192,1196],[11,808,810],{"id":809},"cable-cross-section-per-circuit-breaker","Cable Cross-Section per Circuit Breaker",[16,812,813,816],{},[19,814,815],{},"The breaker protects the cable, not the appliance."," If a cable that is too thin is connected to an oversized circuit breaker, the cable can overheat and cause a fire. The correct matching of cable cross-section and breaker rated current is safety-critical and mandatory under AREI regulations.",[24,818,820],{"id":819},"quick-reference-breaker-minimum-cross-section","Quick Reference: Breaker → Minimum Cross-Section",[16,822,823],{},"This overview reads Table 4.11 in the direction the question is asked on site: the breaker is fixed, and you need the smallest permissible copper cross-section.",[32,825,826,839],{},[35,827,828],{},[38,829,830,833,836],{},[41,831,832],{},"Circuit Breaker",[41,834,835],{},"Minimum Cable Cross-Section",[41,837,838],{},"Typical Application",[51,840,841,851,861,871,880,889,899,908,917],{},[38,842,843,845,848],{},[56,844,58],{},[56,846,847],{},"1.5 mm² (Table 4.11 permits 1 mm², but Table 5.1 does not allow that size in fixed wiring)",[56,849,850],{},"Lighting",[38,852,853,855,858],{},[56,854,69],{},[56,856,857],{},"1.5 mm² under Table 4.11; socket circuits require at least 2.5 mm² under 5.2.1.2",[56,859,860],{},"Lighting, circuits without sockets",[38,862,863,865,868],{},[56,864,80],{},[56,866,867],{},"2.5 mm² as the Table 4.11 ceiling; installation method, environment and voltage drop can require a larger section",[56,869,870],{},"Dedicated final circuit",[38,872,873,875,877],{},[56,874,91],{},[56,876,94],{},[56,878,879],{},"Final circuit with a higher load",[38,881,882,884,886],{},[56,883,102],{},[56,885,105],{},[56,887,888],{},"Cooktop, instantaneous water heater",[38,890,891,893,896],{},[56,892,113],{},[56,894,895],{},"6 mm² (AREI minimum per Table 4.11: 6 mm² → max. 40 A breaker); for main supply cables 10 mm² is common practice (reserve, voltage drop)",[56,897,898],{},"Main switch, supply cable",[38,900,901,903,905],{},[56,902,124],{},[56,904,127],{},[56,906,907],{},"Sub-distribution board supply",[38,909,910,912,914],{},[56,911,135],{},[56,913,138],{},[56,915,916],{},"Supply cable, main switch",[38,918,919,921,923],{},[56,920,146],{},[56,922,149],{},[56,924,916],{},[24,926,928],{"id":927},"the-complete-table-411","The Complete Table 4.11",[16,930,931],{},"AREI itself states the assignment the other way round: for each conductor cross-section, the largest permissible rating of the protective device — listed separately for fuses and for circuit breakers. For the same cable, the fuse limit therefore always sits one step below the breaker limit.",[16,933,934],{},[162,935,936],{},"Table 4.11 — Rating of the protective device by conductor cross-section (AREI 4.4.1.4)",[32,938,939,955],{},[35,940,941],{},[38,942,943,946,949,952],{},[41,944,945],{},"Conductor Cross-Section",[41,947,948],{},"Max. Fuse",[41,950,951],{},"Max. Circuit Breaker",[41,953,954],{},"Use in domestic installations",[51,956,957,969,981,992,1004,1016,1026,1036,1046,1056,1066],{},[38,958,959,962,964,966],{},[56,960,961],{},"0.5 mm²",[56,963,192],{},[56,965,195],{},[56,967,968],{},"control, monitoring, signalling and measurement circuits only",[38,970,971,974,976,978],{},[56,972,973],{},"0.75 mm²",[56,975,195],{},[56,977,208],{},[56,979,980],{},"built-in distribution-board circuits only",[38,982,983,985,987,989],{},[56,984,216],{},[56,986,208],{},[56,988,58],{},[56,990,991],{},"no permitted exception under Table 5.1",[38,993,994,997,999,1001],{},[56,995,996],{},"1.5 mm²",[56,998,58],{},[56,1000,69],{},[56,1002,1003],{},"circuits without socket outlets",[38,1005,1006,1009,1011,1013],{},[56,1007,1008],{},"2.5 mm²",[56,1010,69],{},[56,1012,80],{},[56,1014,1015],{},"generally permitted",[38,1017,1018,1020,1022,1024],{},[56,1019,94],{},[56,1021,80],{},[56,1023,91],{},[56,1025,1015],{},[38,1027,1028,1030,1032,1034],{},[56,1029,105],{},[56,1031,102],{},[56,1033,113],{},[56,1035,1015],{},[38,1037,1038,1040,1042,1044],{},[56,1039,127],{},[56,1041,274],{},[56,1043,124],{},[56,1045,1015],{},[38,1047,1048,1050,1052,1054],{},[56,1049,138],{},[56,1051,124],{},[56,1053,135],{},[56,1055,1015],{},[38,1057,1058,1060,1062,1064],{},[56,1059,149],{},[56,1061,135],{},[56,1063,146],{},[56,1065,1015],{},[38,1067,1068,1070,1072,1074],{},[56,1069,303],{},[56,1071,146],{},[56,1073,308],{},[56,1075,1015],{},[16,1077,1078,1079,1082],{},"The three smallest rows stay out of reach in an ordinary domestic installation. AREI 5.2.1.2 prohibits insulated conductors below 2.5 mm² unless they form an integral part of a machine or appliance. Only the exceptions in Table 5.1 are allowed: 1.5 mm² for circuits without socket outlets, 0.75 mm² for circuits built into a distribution board that supply a single socket outlet, and 0.5 mm² for control, monitoring, signalling and measurement circuits. ",[19,1080,1081],{},"1 mm² does not appear in Table 5.1"," — so the “6 A fuse \u002F 10 A breaker” row leads nowhere for fixed wiring.",[16,1084,1085,1088],{},[19,1086,1087],{},"Important:"," Table 4.11 gives the maximum circuit-breaker rating for each conductor cross-section in domestic installations. It does not by itself prove adequate current-carrying capacity under every installation condition. Insulation, cable construction, installation method, ambient temperature and voltage drop still need assessment. The table does not apply to non-domestic installations, where current-carrying capacity is calculated according to the rules of the trade.",[24,1090,1092],{"id":1091},"arei-basis","AREI Basis",[32,1094,1095,1105],{},[35,1096,1097],{},[38,1098,1099,1102],{},[41,1100,1101],{},"AREI Article",[41,1103,1104],{},"Rule",[51,1106,1107,1114,1121,1129],{},[38,1108,1109,1111],{},[56,1110,346],{},[56,1112,1113],{},"Table 4.11: Maximum fuse and circuit-breaker rating per conductor cross-section in domestic installations",[38,1115,1116,1118],{},[56,1117,354],{},[56,1119,1120],{},"Choice of electrical conductors: cross-sections below 2.5 mm² prohibited, exceptions per Table 5.1 (1.5 mm² for circuits without sockets)",[38,1122,1123,1126],{},[56,1124,1125],{},"Table 5.1",[56,1127,1128],{},"Conductors permitted below 2.5 mm²: 1.5 mm², 0.75 mm² and 0.5 mm², each with a defined field of application",[38,1130,1131,1133],{},[56,1132,370],{},[56,1134,1135],{},"Voltage variation (voltage drop) in conductors must be limited to the values described in the rules of the trade",[24,1137,1139],{"id":1138},"why-does-this-matter","Why Does This Matter?",[16,1141,1142,1143,1146,1147],{},"A cable with too small a cross-section heats up under high load. If the breaker is oversized, it will not trip in time — the cable overheats and there is a ",[19,1144,1145],{},"fire hazard",". The rule is therefore always: ",[19,1148,1149],{},"The breaker must be less than or equal to the current-carrying capacity of the cable.",[24,1151,1153],{"id":1152},"consider-voltage-drop","Consider Voltage Drop",[16,1155,1156,1157,1160,1161,1164],{},"For long cable runs, such as a distribution board in the basement feeding a garage, voltage drop can become significant. AREI\u002FRGIE 5.2.5 does not itself state a percentage; it refers to the rules of good practice. Preliminary checks commonly use ",[19,1158,1159],{},"3% for lighting"," and ",[19,1162,1163],{},"5% for other final circuits",". A larger section than the table value can therefore be necessary.",[16,1166,1167,1168,1172,1173,1177],{},"See how length, load and phase interact in ",[407,1169,1171],{"href":1170},"\u002Fen\u002Fblog\u002Fvoltage-drop-cable-sizing","voltage drop and cable sizing",", or use the ",[407,1174,1176],{"href":1175},"\u002Fen\u002Ftools\u002Fcable-sizing-calculator-belgium","free calculator",".",[24,1179,1181],{"id":1180},"common-failure-at-inspection","Common Failure at Inspection",[16,1183,1184,1185,1188],{},"One of the most common defects found during electrical inspection: ",[19,1186,1187],{},"breaker too large for the installed cable cross-section."," Especially in older installations with 1.5 mm² wiring that was later protected with 20 A breakers.",[16,1190,1191],{},"When replacing old fuses with circuit breakers, it pays to check both columns: 1.5 mm² wiring on a 10 A fuse is permitted, and on a 16 A breaker as well — but a 20 A breaker on that same cable is not.",[24,1193,1195],{"id":1194},"related-articles","Related Articles",[16,1197,1198,1199,1202],{},"Record cable sizes and protective devices with ",[407,1200,441],{"href":1201},"\u002Fen",". The supported self-check does not replace a complete design or official inspection.",{"title":444,"searchDepth":445,"depth":445,"links":1204},[1205,1206,1207,1208,1209,1210,1211],{"id":819,"depth":445,"text":820},{"id":927,"depth":445,"text":928},{"id":1091,"depth":445,"text":1092},{"id":1138,"depth":445,"text":1139},{"id":1152,"depth":445,"text":1153},{"id":1180,"depth":445,"text":1181},{"id":1194,"depth":445,"text":1195},"Cable cross-sections by circuit-breaker rating under AREI 4.4.1.4 and 5.2.1.2 — including the complete Table 4.11 for fuses and circuit breakers.","en",{},"\u002Fblog\u002Fcable-cross-section-breaker.en",{"title":804,"description":1212},"blog\u002Fcable-cross-section-breaker.en",[1219,1220,471,1221],"cable-cross-section","circuit-breaker","electrical-installation","QQefK2jmwaPBF_c19D5VAhXsOtgXEXRQMvlkm9p6uvY",{"id":1224,"title":1225,"articleId":6,"body":1226,"category":454,"date":455,"description":1628,"extension":457,"lastUpdated":458,"locale":1629,"meta":1630,"navigation":461,"path":1631,"publishDate":455,"readTime":463,"refreshInterval":464,"seo":1632,"slug":1633,"stem":1634,"tags":1635,"__hash__":1640},"blog\u002Fblog\u002Fcable-cross-section-breaker.fr.md","Section de câble par disjoncteur : Quel câble pour quel disjoncteur ?",{"type":8,"value":1227,"toc":1619},[1228,1232,1238,1242,1245,1346,1350,1353,1358,1493,1500,1506,1510,1553,1557,1567,1571,1582,1594,1598,1605,1608,1612],[11,1229,1231],{"id":1230},"section-de-câble-par-disjoncteur","Section de câble par disjoncteur",[16,1233,1234,1237],{},[19,1235,1236],{},"Le disjoncteur protège le câble, pas l'appareil."," Si un câble trop fin est raccordé à un disjoncteur trop puissant, le câble peut surchauffer et provoquer un incendie. La bonne correspondance entre la section du câble et le courant nominal du disjoncteur est critique pour la sécurité et obligatoire selon le RGIE.",[24,1239,1241],{"id":1240},"aperçu-rapide-disjoncteur-section-minimale","Aperçu rapide : disjoncteur → section minimale",[16,1243,1244],{},"Cet aperçu lit le tableau 4.11 dans le sens où la question se pose sur chantier : le disjoncteur est fixé, on cherche la plus petite section admissible en cuivre.",[32,1246,1247,1260],{},[35,1248,1249],{},[38,1250,1251,1254,1257],{},[41,1252,1253],{},"Disjoncteur",[41,1255,1256],{},"Section minimale du câble",[41,1258,1259],{},"Application typique",[51,1261,1262,1272,1282,1292,1301,1310,1320,1329,1338],{},[38,1263,1264,1266,1269],{},[56,1265,58],{},[56,1267,1268],{},"1,5 mm² (le tableau 4.11 admet 1 mm², mais le tableau 5.1 n’autorise pas cette section en pose fixe)",[56,1270,1271],{},"Éclairage",[38,1273,1274,1276,1279],{},[56,1275,69],{},[56,1277,1278],{},"1,5 mm² selon le tableau 4.11 ; au moins 2,5 mm² pour les circuits avec prises selon 5.2.1.2",[56,1280,1281],{},"Éclairage, circuits sans prises",[38,1283,1284,1286,1289],{},[56,1285,80],{},[56,1287,1288],{},"2,5 mm² comme limite issue du tableau 4.11 ; le mode de pose, l’environnement et la chute de tension peuvent imposer davantage",[56,1290,1291],{},"Circuit terminal dédié",[38,1293,1294,1296,1298],{},[56,1295,91],{},[56,1297,94],{},[56,1299,1300],{},"Circuit terminal à charge plus élevée",[38,1302,1303,1305,1307],{},[56,1304,102],{},[56,1306,105],{},[56,1308,1309],{},"Plaque de cuisson, chauffe-eau instantané",[38,1311,1312,1314,1317],{},[56,1313,113],{},[56,1315,1316],{},"6 mm² (minimum RGIE selon Tableau 4.11 : 6 mm² → disjoncteur max. 40 A) ; pour les câbles d'alimentation principaux, le 10 mm² est usuel (réserve, chute de tension)",[56,1318,1319],{},"Interrupteur général, câble d'alimentation",[38,1321,1322,1324,1326],{},[56,1323,124],{},[56,1325,127],{},[56,1327,1328],{},"Alimentation d’un tableau divisionnaire",[38,1330,1331,1333,1335],{},[56,1332,135],{},[56,1334,138],{},[56,1336,1337],{},"Câble d’alimentation, interrupteur général",[38,1339,1340,1342,1344],{},[56,1341,146],{},[56,1343,149],{},[56,1345,1337],{},[24,1347,1349],{"id":1348},"le-tableau-411-complet","Le tableau 4.11 complet",[16,1351,1352],{},"Le RGIE présente la correspondance dans l’autre sens : pour chaque section de conducteur, le calibre maximal du dispositif de protection — séparément pour le coupe-circuit à fusible et pour le disjoncteur. Pour un même câble, la limite du fusible se situe donc toujours un calibre en dessous de celle du disjoncteur.",[16,1354,1355],{},[162,1356,1357],{},"Tableau 4.11 — Calibre du dispositif de protection en fonction de la section des conducteurs (RGIE 4.4.1.4)",[32,1359,1360,1376],{},[35,1361,1362],{},[38,1363,1364,1367,1370,1373],{},[41,1365,1366],{},"Section du conducteur",[41,1368,1369],{},"Fusible max.",[41,1371,1372],{},"Disjoncteur max.",[41,1374,1375],{},"Usage en installation domestique",[51,1377,1378,1389,1400,1411,1422,1433,1443,1453,1463,1473,1483],{},[38,1379,1380,1382,1384,1386],{},[56,1381,189],{},[56,1383,192],{},[56,1385,195],{},[56,1387,1388],{},"uniquement circuits de commande, contrôle et mesure",[38,1390,1391,1393,1395,1397],{},[56,1392,203],{},[56,1394,195],{},[56,1396,208],{},[56,1398,1399],{},"uniquement circuits intégrés dans les tableaux",[38,1401,1402,1404,1406,1408],{},[56,1403,216],{},[56,1405,208],{},[56,1407,58],{},[56,1409,1410],{},"aucune exception admise par le tableau 5.1",[38,1412,1413,1415,1417,1419],{},[56,1414,228],{},[56,1416,58],{},[56,1418,69],{},[56,1420,1421],{},"circuits sans prises de courant",[38,1423,1424,1426,1428,1430],{},[56,1425,240],{},[56,1427,69],{},[56,1429,80],{},[56,1431,1432],{},"admis de manière générale",[38,1434,1435,1437,1439,1441],{},[56,1436,94],{},[56,1438,80],{},[56,1440,91],{},[56,1442,1432],{},[38,1444,1445,1447,1449,1451],{},[56,1446,105],{},[56,1448,102],{},[56,1450,113],{},[56,1452,1432],{},[38,1454,1455,1457,1459,1461],{},[56,1456,127],{},[56,1458,274],{},[56,1460,124],{},[56,1462,1432],{},[38,1464,1465,1467,1469,1471],{},[56,1466,138],{},[56,1468,124],{},[56,1470,135],{},[56,1472,1432],{},[38,1474,1475,1477,1479,1481],{},[56,1476,149],{},[56,1478,135],{},[56,1480,146],{},[56,1482,1432],{},[38,1484,1485,1487,1489,1491],{},[56,1486,303],{},[56,1488,146],{},[56,1490,308],{},[56,1492,1432],{},[16,1494,1495,1496,1499],{},"Les trois premières lignes restent hors d’atteinte dans une installation domestique ordinaire. Le RGIE 5.2.1.2 interdit les conducteurs isolés de moins de 2,5 mm² lorsqu’ils ne font pas partie intégrante d’une machine ou d’un appareil. Seules les exceptions du tableau 5.1 sont admises : 1,5 mm² pour les circuits sans prises, 0,75 mm² pour les circuits intégrés dans un tableau alimentant une prise unique, et 0,5 mm² pour les circuits de commande, de contrôle, de signalisation et de mesure. ",[19,1497,1498],{},"Le 1 mm² ne figure pas au tableau 5.1"," : la valeur « fusible 6 A \u002F disjoncteur 10 A » ne mène donc nulle part pour une pose fixe.",[16,1501,1502,1505],{},[19,1503,1504],{},"Important :"," le tableau 4.11 indique le calibre maximal du disjoncteur selon la section dans une installation domestique. Il ne démontre pas à lui seul que le câble supporte le courant dans toute condition de pose. L’isolation, la constitution, le mode de pose, la température ambiante et la chute de tension doivent encore être évalués. Le tableau ne s’applique pas aux installations non domestiques : le courant admissible y est calculé selon les règles de l’art.",[24,1507,1509],{"id":1508},"bases-rgie","Bases RGIE",[32,1511,1512,1522],{},[35,1513,1514],{},[38,1515,1516,1519],{},[41,1517,1518],{},"Article RGIE",[41,1520,1521],{},"Règle",[51,1523,1524,1531,1538,1546],{},[38,1525,1526,1528],{},[56,1527,346],{},[56,1529,1530],{},"Tableau 4.11 : Courant nominal maximal du fusible et du disjoncteur selon la section du conducteur dans une installation domestique",[38,1532,1533,1535],{},[56,1534,354],{},[56,1536,1537],{},"Choix des conducteurs électriques : sections inférieures à 2,5 mm² interdites, exceptions selon le tableau 5.1 (1,5 mm² pour circuits sans prises)",[38,1539,1540,1543],{},[56,1541,1542],{},"Tableau 5.1",[56,1544,1545],{},"Conducteurs dont la section peut être inférieure à 2,5 mm² : 1,5 mm², 0,75 mm² et 0,5 mm², chacun avec un domaine d’emploi défini",[38,1547,1548,1550],{},[56,1549,370],{},[56,1551,1552],{},"La variation de tension (chute de tension) dans les conducteurs doit être limitée aux valeurs décrites dans les règles de l'art",[24,1554,1556],{"id":1555},"pourquoi-est-ce-important","Pourquoi est-ce important ?",[16,1558,1559,1560,1563,1564],{},"Un câble avec une section trop petite chauffe en cas de charge élevée. Si le disjoncteur est surdimensionné, il ne déclenche pas à temps — le câble surchauffe et il y a ",[19,1561,1562],{},"risque d'incendie",". C'est pourquoi la règle est toujours : ",[19,1565,1566],{},"Le disjoncteur doit être inférieur ou égal à la capacité de charge du câble.",[24,1568,1570],{"id":1569},"tenir-compte-de-la-chute-de-tension","Tenir compte de la chute de tension",[16,1572,1573,1574,1577,1578,1581],{},"Pour les longs trajets (par exemple du tableau à la cave vers le garage), la chute de tension peut devenir importante. Le RGIE 5.2.5 ne donne lui-même aucun pourcentage : il renvoie aux règles de l’art. Pour un prédimensionnement, on utilise couramment ",[19,1575,1576],{},"3 % pour l’éclairage"," et ",[19,1579,1580],{},"5 % pour les autres circuits terminaux",". Une section supérieure à la valeur du tableau peut donc être nécessaire.",[16,1583,1584,1585,1589,1590,1177],{},"Découvrez comment la longueur, la charge et le nombre de phases interviennent dans le ",[407,1586,1588],{"href":1587},"\u002Ffr\u002Fblog\u002Fchute-de-tension-section-cable","calcul de chute de tension et de section",", ou utilisez directement le ",[407,1591,1593],{"href":1592},"\u002Ffr\u002Ftools\u002Fcalcul-section-cable","calculateur gratuit",[24,1595,1597],{"id":1596},"erreur-fréquente-lors-du-contrôle","Erreur fréquente lors du contrôle",[16,1599,1600,1601,1604],{},"L'un des défauts les plus fréquents lors du contrôle électrique : ",[19,1602,1603],{},"disjoncteur trop puissant pour la section de câble installée."," Surtout dans les anciennes installations avec des câbles de 1,5 mm² protégés après coup par des disjoncteurs de 20 A.",[16,1606,1607],{},"Lors du remplacement d’anciens fusibles par des disjoncteurs, il vaut la peine de consulter les deux colonnes : un câble de 1,5 mm² sur un fusible de 10 A est admis, sur un disjoncteur de 16 A également — mais pas sur un disjoncteur de 20 A.",[24,1609,1611],{"id":1610},"articles-connexes","Articles connexes",[16,1613,1614,1615,1618],{},"Consignez les sections et protections avec ",[407,1616,441],{"href":1617},"\u002Ffr",". L’auto-contrôle peut signaler certaines combinaisons prises en charge, mais ne remplace pas un calcul professionnel.",{"title":444,"searchDepth":445,"depth":445,"links":1620},[1621,1622,1623,1624,1625,1626,1627],{"id":1240,"depth":445,"text":1241},{"id":1348,"depth":445,"text":1349},{"id":1508,"depth":445,"text":1509},{"id":1555,"depth":445,"text":1556},{"id":1569,"depth":445,"text":1570},{"id":1596,"depth":445,"text":1597},{"id":1610,"depth":445,"text":1611},"Sections de câble par disjoncteur selon le RGIE 4.4.1.4 et 5.2.1.2 — avec le tableau 4.11 complet pour le coupe-circuit à fusible et le disjoncteur.","fr",{},"\u002Fblog\u002Fcable-cross-section-breaker.fr",{"title":1225,"description":1628},"section-cable-disjoncteur","blog\u002Fcable-cross-section-breaker.fr",[1636,1637,1638,1639],"section-cable","disjoncteur","rgie","installation-electrique","UX_ML5_sjdGR1d8yIRwAm6JlP1vmr8Dd3jIbyIvmxgA",{"id":1642,"title":1643,"articleId":6,"body":1644,"category":454,"date":455,"description":2044,"extension":457,"lastUpdated":458,"locale":2045,"meta":2046,"navigation":461,"path":2047,"publishDate":455,"readTime":463,"refreshInterval":464,"seo":2048,"slug":2049,"stem":2050,"tags":2051,"__hash__":2055},"blog\u002Fblog\u002Fcable-cross-section-breaker.nl.md","Kabeldoorsnede per automaat: Welke kabel bij welke zekering?",{"type":8,"value":1645,"toc":2035},[1646,1650,1656,1660,1663,1764,1768,1771,1776,1911,1918,1924,1927,1969,1973,1983,1987,1998,2010,2014,2021,2024,2028],[11,1647,1649],{"id":1648},"kabeldoorsnede-per-automaat","Kabeldoorsnede per automaat",[16,1651,1652,1655],{},[19,1653,1654],{},"De zekering beschermt de kabel, niet het toestel."," Als een te dunne kabel op een te grote automaat wordt aangesloten, kan de kabel oververhitten en brand veroorzaken. De juiste afstemming van kabeldoorsnede en nominale stroom van de automaat is veiligheidskritisch en verplicht volgens het AREI.",[24,1657,1659],{"id":1658},"snel-overzicht-automaat-minimumdoorsnede","Snel overzicht: automaat → minimumdoorsnede",[16,1661,1662],{},"Dit overzicht leest Tabel 4.11 in de richting waarin de vraag op de werf gesteld wordt: de automaat staat vast, gezocht is de kleinste toegelaten doorsnede in koper.",[32,1664,1665,1678],{},[35,1666,1667],{},[38,1668,1669,1672,1675],{},[41,1670,1671],{},"Automaat",[41,1673,1674],{},"Minimum kabeldoorsnede",[41,1676,1677],{},"Typische toepassing",[51,1679,1680,1690,1700,1710,1719,1728,1738,1747,1756],{},[38,1681,1682,1684,1687],{},[56,1683,58],{},[56,1685,1686],{},"1,5 mm² (Tabel 4.11 laat 1 mm² toe, maar Tabel 5.1 staat die doorsnede niet toe in vaste leidingen)",[56,1688,1689],{},"Verlichting",[38,1691,1692,1694,1697],{},[56,1693,69],{},[56,1695,1696],{},"1,5 mm² volgens Tabel 4.11; voor stopcontactkringen echter minstens 2,5 mm² volgens 5.2.1.2",[56,1698,1699],{},"Verlichting, kringen zonder stopcontacten",[38,1701,1702,1704,1707],{},[56,1703,80],{},[56,1705,1706],{},"2,5 mm² als bovengrens uit Tabel 4.11; plaatsing, omgeving en spanningsval kunnen een grotere doorsnede vereisen",[56,1708,1709],{},"Toegewezen eindkring",[38,1711,1712,1714,1716],{},[56,1713,91],{},[56,1715,94],{},[56,1717,1718],{},"Eindkring met hogere belasting",[38,1720,1721,1723,1725],{},[56,1722,102],{},[56,1724,105],{},[56,1726,1727],{},"Kookplaat, doorstroomverwarmer",[38,1729,1730,1732,1735],{},[56,1731,113],{},[56,1733,1734],{},"6 mm² (AREI-minimum volgens Tabel 4.11: 6 mm² → max. 40 A-automaat); voor hoofdvoedingskabels is 10 mm² gangbaar in de praktijk (reserve, spanningsval)",[56,1736,1737],{},"Hoofdschakelaar, voedingskabel",[38,1739,1740,1742,1744],{},[56,1741,124],{},[56,1743,127],{},[56,1745,1746],{},"Voeding onderverdeling",[38,1748,1749,1751,1753],{},[56,1750,135],{},[56,1752,138],{},[56,1754,1755],{},"Voedingskabel, hoofdschakelaar",[38,1757,1758,1760,1762],{},[56,1759,146],{},[56,1761,149],{},[56,1763,1755],{},[24,1765,1767],{"id":1766},"de-volledige-tabel-411","De volledige Tabel 4.11",[16,1769,1770],{},"Het AREI zelf zet de toewijzing in de omgekeerde richting: per geleidersdoorsnede het grootste toegelaten kaliber van de beschermingsinrichting — afzonderlijk voor de smeltzekering en voor de vermogensschakelaar. Voor dezelfde leiding ligt de grens voor de smeltzekering daarom steeds één kaliber onder die van de automaat.",[16,1772,1773],{},[162,1774,1775],{},"Tabel 4.11 — Kaliber van de beschermingsinrichting in functie van de doorsnede der geleiders (AREI 4.4.1.4)",[32,1777,1778,1794],{},[35,1779,1780],{},[38,1781,1782,1785,1788,1791],{},[41,1783,1784],{},"Geleidersdoorsnede",[41,1786,1787],{},"Max. smeltzekering",[41,1789,1790],{},"Max. vermogensschakelaar",[41,1792,1793],{},"Gebruik in huishoudelijke installaties",[51,1795,1796,1807,1818,1829,1840,1851,1861,1871,1881,1891,1901],{},[38,1797,1798,1800,1802,1804],{},[56,1799,189],{},[56,1801,192],{},[56,1803,195],{},[56,1805,1806],{},"enkel stuur-, controle-, meld- en meetkringen",[38,1808,1809,1811,1813,1815],{},[56,1810,203],{},[56,1812,195],{},[56,1814,208],{},[56,1816,1817],{},"enkel ingebouwde kringen in verdeelborden",[38,1819,1820,1822,1824,1826],{},[56,1821,216],{},[56,1823,208],{},[56,1825,58],{},[56,1827,1828],{},"geen toegelaten uitzondering volgens Tabel 5.1",[38,1830,1831,1833,1835,1837],{},[56,1832,228],{},[56,1834,58],{},[56,1836,69],{},[56,1838,1839],{},"kringen zonder stopcontacten",[38,1841,1842,1844,1846,1848],{},[56,1843,240],{},[56,1845,69],{},[56,1847,80],{},[56,1849,1850],{},"algemeen toegelaten",[38,1852,1853,1855,1857,1859],{},[56,1854,94],{},[56,1856,80],{},[56,1858,91],{},[56,1860,1850],{},[38,1862,1863,1865,1867,1869],{},[56,1864,105],{},[56,1866,102],{},[56,1868,113],{},[56,1870,1850],{},[38,1872,1873,1875,1877,1879],{},[56,1874,127],{},[56,1876,274],{},[56,1878,124],{},[56,1880,1850],{},[38,1882,1883,1885,1887,1889],{},[56,1884,138],{},[56,1886,124],{},[56,1888,135],{},[56,1890,1850],{},[38,1892,1893,1895,1897,1899],{},[56,1894,149],{},[56,1896,135],{},[56,1898,146],{},[56,1900,1850],{},[38,1902,1903,1905,1907,1909],{},[56,1904,303],{},[56,1906,146],{},[56,1908,308],{},[56,1910,1850],{},[16,1912,1913,1914,1917],{},"De drie kleinste rijen blijven in een gewone woninginstallatie onbereikbaar. AREI 5.2.1.2 verbiedt geïsoleerde geleiders onder 2,5 mm², behalve wanneer ze integraal deel uitmaken van een machine of toestel. Toegelaten zijn enkel de uitzonderingen van Tabel 5.1: 1,5 mm² voor kringen zonder stopcontacten, 0,75 mm² voor in verdeelborden ingebouwde kringen die één enkel stopcontact voeden, en 0,5 mm² voor stuur-, controle-, meld- en meetkringen. ",[19,1915,1916],{},"1 mm² staat niet in Tabel 5.1"," — de tabelwaarde “6 A smeltzekering \u002F 10 A automaat” leidt voor een vaste leiding dus nergens toe.",[16,1919,1920,1923],{},[19,1921,1922],{},"Belangrijk:"," Tabel 4.11 geeft de maximale automaat per doorsnede voor huishoudelijke installaties. Ze bewijst niet op zichzelf dat een kabel in elke plaatsingswijze voldoende stroom kan voeren. Isolatie, opbouw, plaatsing, omgevingstemperatuur en spanningsval blijven afzonderlijk te beoordelen. Voor niet-huishoudelijke installaties geldt de tabel niet; daar wordt de stroombelastbaarheid berekend volgens de regels van goed vakmanschap.",[24,1925,1926],{"id":1091},"AREI-basis",[32,1928,1929,1938],{},[35,1930,1931],{},[38,1932,1933,1935],{},[41,1934,336],{},[41,1936,1937],{},"Regel",[51,1939,1940,1947,1954,1962],{},[38,1941,1942,1944],{},[56,1943,346],{},[56,1945,1946],{},"Tabel 4.11: Maximale nominale stroom van smeltzekering en vermogensschakelaar per geleidersdoorsnede voor huishoudelijke installaties",[38,1948,1949,1951],{},[56,1950,354],{},[56,1952,1953],{},"Keuze van elektrische leidingen: doorsneden onder 2,5 mm² verboden, uitzonderingen volgens Tabel 5.1 (1,5 mm² voor kringen zonder stopcontacten)",[38,1955,1956,1959],{},[56,1957,1958],{},"Tabel 5.1",[56,1960,1961],{},"Elektrische leidingen waarvan de doorsnede minder dan 2,5 mm² mag bedragen: 1,5 mm², 0,75 mm² en 0,5 mm², elk met vastgelegd toepassingsgebied",[38,1963,1964,1966],{},[56,1965,370],{},[56,1967,1968],{},"Spanningsverandering (spanningsval) in leidingen moet beperkt worden tot de in de regels van het vak beschreven waarden",[24,1970,1972],{"id":1971},"waarom-is-dit-belangrijk","Waarom is dit belangrijk?",[16,1974,1975,1976,1979,1980],{},"Een kabel met een te kleine doorsnede wordt bij hoge belasting warm. Als de automaat te groot gedimensioneerd is, schakelt hij niet tijdig uit — de kabel oververhit en er ontstaat ",[19,1977,1978],{},"brandgevaar",". Daarom geldt altijd: ",[19,1981,1982],{},"De automaat moet kleiner of gelijk zijn aan de stroombelastbaarheid van de kabel.",[24,1984,1986],{"id":1985},"spanningsval-in-rekening-brengen","Spanningsval in rekening brengen",[16,1988,1989,1990,1993,1994,1997],{},"Bij lange kabeltrajecten (bv. van de verdeler in de kelder naar de garage) kan de spanningsval te groot worden. AREI 5.2.5 noemt zelf geen percentage, maar verwijst naar de regels van goed vakmanschap. Voor de voorstudie worden doorgaans ",[19,1991,1992],{},"3 % voor verlichting"," en ",[19,1995,1996],{},"5 % voor andere eindkringen"," gebruikt. Daardoor kan een grotere doorsnede nodig zijn dan de tabelwaarde.",[16,1999,2000,2001,2005,2006,1177],{},"Lees hoe lengte, belasting en fase samen doorwegen in ",[407,2002,2004],{"href":2003},"\u002Fblog\u002Fspanningsval-berekenen-kabeldoorsnede","spanningsval berekenen en kabeldoorsnede kiezen",", of gebruik meteen de ",[407,2007,2009],{"href":2008},"\u002Ftools\u002Fkabeldoorsnede-berekenen","gratis spanningsvaltool",[24,2011,2013],{"id":2012},"veelgemaakte-fout-bij-de-keuring","Veelgemaakte fout bij de keuring",[16,2015,2016,2017,2020],{},"Een van de meest voorkomende gebreken bij de elektrokeuring: ",[19,2018,2019],{},"automaat te groot voor de geïnstalleerde kabeldoorsnede."," Vooral bij oudere installaties met 1,5 mm² leidingen die achteraf met 20 A-automaten werden beveiligd.",[16,2022,2023],{},"Bij het vervangen van oude smeltzekeringen door automaten is een blik op beide kolommen nuttig: een leiding van 1,5 mm² op een smeltzekering van 10 A is toegelaten, met een automaat van 16 A eveneens — een automaat van 20 A op diezelfde leiding niet.",[24,2025,2027],{"id":2026},"gerelateerde-artikelen","Gerelateerde artikelen",[16,2029,2030,2031,2034],{},"Leg kabeldoorsneden en beveiligingen vast met ",[407,2032,441],{"href":2033},"\u002F",". De zelfcontrole kan ondersteunde combinaties signaleren, maar vervangt geen professionele berekening.",{"title":444,"searchDepth":445,"depth":445,"links":2036},[2037,2038,2039,2040,2041,2042,2043],{"id":1658,"depth":445,"text":1659},{"id":1766,"depth":445,"text":1767},{"id":1091,"depth":445,"text":1926},{"id":1971,"depth":445,"text":1972},{"id":1985,"depth":445,"text":1986},{"id":2012,"depth":445,"text":2013},{"id":2026,"depth":445,"text":2027},"Kabeldoorsneden per automatische zekering volgens AREI 4.4.1.4 en 5.2.1.2 — met de volledige Tabel 4.11 voor smeltzekering en vermogensschakelaar.","nl",{},"\u002Fblog\u002Fcable-cross-section-breaker.nl",{"title":1643,"description":2044},"kabeldoorsnede-automaat","blog\u002Fcable-cross-section-breaker.nl",[2052,2053,471,2054],"kabeldoorsnede","automaat","elektro-installatie","9G8I0auOfSFg8Im8h1NITasbN1xR0yVE99NuoQfylXg",1787555201591]