{"id":21289,"date":"2026-01-16T10:52:49","date_gmt":"2026-01-16T02:52:49","guid":{"rendered":"https:\/\/viox.com\/?p=21289"},"modified":"2026-01-16T10:53:50","modified_gmt":"2026-01-16T02:53:50","slug":"rcbo-vs-rccb-mcb-comparison-space-cost-selectivity","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/","title":{"rendered":"RCBO vs. RCCB + MCB: Anal\u00fdza prostoru, n\u00e1klad\u016f a selektivity v rozvodn\u00fdch sk\u0159\u00edn\u00edch"},"content":{"rendered":"<div class=\"product-intro\">\n<p>V modern\u00edm elektrotechnick\u00e9m prost\u0159ed\u00ed se \u201cvoln\u00e9 m\u00edsto\u201d v rozvodn\u00e9 desce stalo luxusem. S rychlou integrac\u00ed nab\u00edje\u010dek pro elektromobily, sol\u00e1rn\u00edch invertor\u016f, modul\u016f pro automatizaci chytr\u00e9 dom\u00e1cnosti a p\u0159ep\u011b\u0165ov\u00fdch ochran (SPD) \u010del\u00ed v\u00fdrobci panel\u016f kritick\u00e9 v\u00fdzv\u011b v oblasti hustoty.<\/p>\n<p>Po desetilet\u00ed zahrnovala standardn\u00ed konfigurace pro ochranu proti zbytkov\u00e9mu proudu desku \u201cSplit Load\u201d: jeden proudov\u00fd chr\u00e1ni\u010d (RCCB) nap\u00e1jej\u00edc\u00ed banku jisti\u010d\u016f (MCB). Nicm\u00e9n\u011b, proto\u017ee se snadn\u00e1 \u00fadr\u017eba a kontinuita podnik\u00e1n\u00ed st\u00e1vaj\u00ed prvo\u0159ad\u00fdmi, pr\u016fmysl se posouv\u00e1 sm\u011brem k <strong>Jisti\u010d s ochranou proti zbytkov\u00e9mu proudu a nadproudovou ochranou (RCBO)<\/strong>.<\/p>\n<p>Tato technick\u00e1 p\u0159\u00edru\u010dka analyzuje kompromisy mezi t\u011bmito dv\u011bma architekturami, se zam\u011b\u0159en\u00edm na prostor na DIN li\u0161t\u011b, celkov\u00e9 n\u00e1klady na vlastnictv\u00ed (TCO) a selektivitu v souladu s <strong>IEC 61009<\/strong> a <strong>BS 7671<\/strong>.<\/p>\n<h2>Technick\u00e9 definice a architektura<\/h2>\n<p>Abychom mohli u\u010dinit informovan\u00e9 rozhodnut\u00ed o n\u00e1kupu, mus\u00edme nejprve definovat architektonick\u00e9 rozd\u00edly definovan\u00e9 mezin\u00e1rodn\u00edmi standardy.<\/p>\n<h3>Konfigurace RCCB + MCB (skupinov\u00e1 ochrana)<\/h3>\n<p>Tato architektura pou\u017e\u00edv\u00e1 dv\u011b odli\u0161n\u00e1 za\u0159\u00edzen\u00ed:<\/p>\n<ul>\n<li><strong>RCCB (IEC 61008):<\/strong> Detekuje zemn\u00ed svodov\u00e9 proudy (zbytkov\u00fd proud), ale nenab\u00edz\u00ed <strong>ne<\/strong> ochranu proti p\u0159et\u00ed\u017een\u00ed nebo zkrat\u016fm. Funguje jako \u201cvr\u00e1tn\u00fd\u201d pro skupinu obvod\u016f.<\/li>\n<li><strong>MCB (IEC 60898):<\/strong> Chr\u00e1n\u00ed jednotliv\u00e9 obvody proti p\u0159et\u00ed\u017een\u00ed a zkrat\u016fm, ale ignoruje zemn\u00ed svody.<\/li>\n<\/ul>\n<p>V typick\u00e9 desce \u201cSplit Load\u201d chr\u00e1n\u00ed jeden RCCB sekci p\u0159\u00edpojnice nap\u00e1jej\u00edc\u00ed 4\u20138 MCB. Pokud RCCB vypne, v\u0161ech 8 obvod\u016f ztrat\u00ed nap\u00e1jen\u00ed.<\/p>\n<h3>Konfigurace RCBO (individu\u00e1ln\u00ed ochrana)<\/h3>\n<p>. <strong>RCBO (IEC 61009)<\/strong> kombinuje funkce MCB a RCCB do jednoho za\u0159\u00edzen\u00ed. Poskytuje:<\/p>\n<ol>\n<li>Ochrana proti p\u0159et\u00ed\u017een\u00ed (tepeln\u00e1)<\/li>\n<li>Ochrana proti zkratu (magnetick\u00e1)<\/li>\n<li>Ochrana proti zemn\u00edmu svodu (transform\u00e1tor s vyv\u00e1\u017een\u00fdm j\u00e1drem)<\/li>\n<\/ol>\n<p>Z\u00e1sadn\u00ed je, \u017ee modern\u00ed RCBO integruj\u00ed tuto funk\u010dnost do jednoho modulu o \u0161\u00ed\u0159ce 18 mm, co\u017e odpov\u00edd\u00e1 velikosti standardn\u00edho MCB.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Space-comparison-between-VIOX-RCBO-single-device-vs-RCCB-and-MCB-combination-on-DIN-rail.webp\" alt=\"Space comparison between VIOX RCBO single device vs RCCB and MCB combination on DIN rail\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">Obr\u00e1zek 1: Porovn\u00e1n\u00ed prostoru mezi jedn\u00edm za\u0159\u00edzen\u00edm VIOX RCBO vs <a href=\"https:\/\/test.viox.com\/cs\/rccb\/\">RCCB<\/a> a <a href=\"https:\/\/test.viox.com\/cs\/mcb\/\">MCB<\/a> kombinac\u00ed na <a href=\"https:\/\/test.viox.com\/cs\/din-rail\/\">Li\u0161ta DIN<\/a>.<\/figcaption><\/figure>\n<h2>Anal\u00fdza prostoru: V\u00fdpo\u010det modulu 18 mm<\/h2>\n<p>Prostor je \u010dasto prim\u00e1rn\u00edm d\u016fvodem pro p\u0159echod na RCBO. V norm\u011b IEC je \u0161\u00ed\u0159ka jednoho modulu (1TE) <strong>17,5 mm a\u017e 18 mm<\/strong>.<\/p>\n<p>P\u0159i n\u00e1vrhu <a href=\"https:\/\/test.viox.com\/cs\/understanding-pan-assembly-in-distribution-boards\/\">Mont\u00e1\u017e panelu v rozvodn\u00fdch desk\u00e1ch<\/a>, je v\u00fdpo\u010det p\u0159\u00edmo\u010dar\u00fd. RCBO chr\u00e1n\u00ed jednu f\u00e1zi a nulov\u00fd vodi\u010d (1P+N) typicky v r\u00e1mci jednoho modulu. RCCB vy\u017eaduje dva moduly (36 mm) pro jednof\u00e1zov\u00e9 nebo \u010dty\u0159i moduly (72 mm) pro t\u0159\u00edf\u00e1zov\u00e9.<\/p>\n<h3>Tabulka 1: V\u00fdpo\u010det vyu\u017eit\u00ed prostoru (12-obvodov\u00fd jednof\u00e1zov\u00fd panel)<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Konfigurace<\/th>\n<th>Ochrann\u00e1 za\u0159\u00edzen\u00ed<\/th>\n<th>Celkov\u00e1 \u0161\u00ed\u0159ka modulu<\/th>\n<th>Efektivita vyu\u017eit\u00ed prostoru<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Varianta A: Du\u00e1ln\u00ed Split Load<\/strong><\/td>\n<td>2 x RCCB (2-p\u00f3lov\u00fd) + 12 x MCB (1-p\u00f3lov\u00fd)<\/td>\n<td>(2 x 2) + 12 = <strong>16 modul\u016f<\/strong><\/td>\n<td><strong>N\u00edzk\u00e1:<\/strong> Vy\u017eaduje dal\u0161\u00ed prostor pro RCCB a kabelov\u00e9 smy\u010dky.<\/td>\n<\/tr>\n<tr>\n<td><strong>Varianta B: V\u0161echny RCBO<\/strong><\/td>\n<td>12 x RCBO (velikost 1-p\u00f3lov\u00e9ho)<\/td>\n<td>12 = <strong>12 modul\u016f<\/strong><\/td>\n<td><strong>Vysok\u00e1:<\/strong> U\u0161et\u0159\u00ed 4 moduly (72 mm) \u2013 dostatek pro p\u0159ep\u011b\u0165ovou ochranu nebo chytr\u00fd elektrom\u011br.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pro v\u00fdrobce panel\u016f znamen\u00e1 \u00faspora 4 modul\u016f \u010dasto rozd\u00edl mezi osazen\u00edm standardn\u00ed sk\u0159\u00edn\u011b nebo upgradem na v\u011bt\u0161\u00ed a dra\u017e\u0161\u00ed zak\u00e1zkovou sk\u0159\u00ed\u0148.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/DIN-rail-module-space-calculation-comparison-for-RCBO-vs-RCCBMCB-configurations-in-8-circuit-panel.webp\" alt=\"DIN rail module space calculation comparison for RCBO vs RCCB+MCB configurations in 8-circuit panel\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">Obr\u00e1zek 2: Porovn\u00e1n\u00ed v\u00fdpo\u010dtu prostoru modulu DIN li\u0161ty pro konfigurace RCBO vs RCCB+MCB v 8-obvodov\u00e9m panelu.<\/figcaption><\/figure>\n<h2>Selektivita a izolace poruch: Faktor \u201cobt\u011b\u017eov\u00e1n\u00ed\u201d<\/h2>\n<p>I kdy\u017e je prostor d\u016fle\u017eit\u00fd, <strong>selektivitu<\/strong> (nebo diskriminace) je provozn\u00ed argument pro RCBO.<\/p>\n<p>V <strong>Skupinov\u00e1 ochrana (RCCB + MCB)<\/strong> sc\u00e9n\u00e1\u0159i zp\u016fsob\u00ed jedin\u00e1 zemn\u00ed porucha na mal\u00e9m spot\u0159ebi\u010di (nap\u0159. zahradn\u00ed sv\u011btlo nebo toustova\u010d) vypnut\u00ed hlavn\u00edho RCCB. T\u00edm se odpoj\u00ed nap\u00e1jen\u00ed <em>ka\u017ed\u00e9ho<\/em> MCB v t\u00e9to skupin\u011b.<\/p>\n<ul>\n<li><strong>D\u016fsledek:<\/strong> Porucha v gar\u00e1\u017ei by mohla vypnout Wi-Fi router, lednici a po\u010d\u00edta\u010d v dom\u00e1c\u00ed kancel\u00e1\u0159i. Toto je zn\u00e1m\u00e9 jako nedostatek diskriminace.<\/li>\n<\/ul>\n<p>V <strong>RCBO<\/strong> instalaci je ka\u017ed\u00fd obvod nez\u00e1visl\u00fd. Porucha na zahradn\u00edm sv\u011btle vypne <em>pouze<\/em> RCBO zahradn\u00edho sv\u011btla. Zbytek domu z\u016fst\u00e1v\u00e1 nap\u00e1jen. Pro komer\u010dn\u00ed aplikace, jako jsou datov\u00e1 centra nebo nemocnice, je tato \u00farove\u0148 <a href=\"https:\/\/test.viox.com\/cs\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/\">Selektivita<\/a> povinn\u00e1, aby se zabr\u00e1nilo n\u00e1kladn\u00fdm prostoj\u016fm.<\/p>\n<h3>Tabulka 2: Matice porovn\u00e1n\u00ed selektivity<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Funkce<\/th>\n<th>RCCB + MCB (skupinov\u00e9)<\/th>\n<th>RCBO (individu\u00e1ln\u00ed)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Diskriminace poruch<\/strong><\/td>\n<td><strong>\u0160patn\u00e1.<\/strong> 1 porucha ovliv\u0148uje v\u00edce obvod\u016f.<\/td>\n<td><strong>V\u00fdborn\u011b.<\/strong> 1 porucha ovliv\u0148uje 1 obvod.<\/td>\n<\/tr>\n<tr>\n<td><strong>Kumulativn\u00ed svod<\/strong><\/td>\n<td><strong>Vysok\u00e9 riziko.<\/strong> B\u011b\u017en\u00fd svod z v\u00edce PC\/za\u0159\u00edzen\u00ed se s\u010d\u00edt\u00e1 a m\u016f\u017ee vypnout sd\u00edlen\u00fd proudov\u00fd chr\u00e1ni\u010d (RCCB).<\/td>\n<td><strong>\u017d\u00e1dn\u00e9 riziko.<\/strong> Svod je \u0159\u00edzen pro ka\u017ed\u00fd obvod zvl\u00e1\u0161\u0165.<\/td>\n<\/tr>\n<tr>\n<td><strong>Diagnostika<\/strong><\/td>\n<td><strong>Obt\u00ed\u017en\u00e1.<\/strong> U\u017eivatel mus\u00ed ru\u010dn\u011b zkontrolovat 4-8 jisti\u010d\u016f (MCB), aby na\u0161el vadn\u00fd obvod.<\/td>\n<td><strong>Okam\u017eit\u00e1.<\/strong> Vypnut\u00e1 p\u00e1\u010dka okam\u017eit\u011b identifikuje p\u0159esn\u00fd vadn\u00fd obvod.<\/td>\n<\/tr>\n<tr>\n<td><strong>Kritick\u00e1 doba provozuschopnosti<\/strong><\/td>\n<td>Nedoporu\u010duje se pro servery\/zdravotnick\u00e1 za\u0159\u00edzen\u00ed.<\/td>\n<td>V\u0159ele doporu\u010deno.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/VIOX-circuit-protection-selectivity-comparison-showing-fault-isolation-differences-between-RCCBMCB-and-RCBO-configurati.webp\" alt=\"VIOX circuit protection selectivity comparison showing fault isolation differences between RCCB+MCB and RCBO configurations\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">Obr\u00e1zek 3: Srovn\u00e1n\u00ed selektivity ochrany obvod\u016f VIOX, kter\u00e9 ukazuje rozd\u00edly v izolaci poruch mezi konfiguracemi RCCB+MCB a RCBO.<\/figcaption><\/figure>\n<h2>Anal\u00fdza n\u00e1klad\u016f: Hardware vs. Instalace vs. \u017divotn\u00ed cyklus<\/h2>\n<p>Hlavn\u00ed n\u00e1mitkou proti RCBO je obvykle po\u010d\u00e1te\u010dn\u00ed cena jednotky. V\u00fdroba RCBO je slo\u017eit\u011bj\u0161\u00ed ne\u017e v\u00fdroba jednoduch\u00e9ho MCB. Nicm\u00e9n\u011b, d\u00edvat se na n\u00e1klady na hardware izolovan\u011b je chyba, kter\u00e9 se \u010dasto dopou\u0161t\u011bj\u00ed n\u00e1kupn\u00ed t\u00fdmy. Je nutn\u00e9 vypo\u010d\u00edtat <strong>Celkov\u00e9 instalovan\u00e9 n\u00e1klady<\/strong>.<\/p>\n<h3>Tabulka 3: Rozpis n\u00e1klad\u016f na 10 let (p\u0159\u00edklad komer\u010dn\u00ed kancel\u00e1\u0159e)<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>N\u00e1kladov\u00e1 slo\u017eka<\/th>\n<th>Strategie RCCB + MCB<\/th>\n<th>Strategie RCBO<\/th>\n<th>Anal\u00fdza<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>N\u00e1klady na hardware<\/strong><\/td>\n<td>N\u00edzk\u00e9 ($)<\/td>\n<td>St\u0159edn\u00ed ($$)<\/td>\n<td>RCCB + MCB jsou p\u0159ibli\u017en\u011b o 20-30% levn\u011bj\u0161\u00ed v \u010dist\u00fdch materi\u00e1lech.<\/td>\n<\/tr>\n<tr>\n<td><strong>Instala\u010dn\u00ed pr\u00e1ce<\/strong><\/td>\n<td>Vysok\u00e9 ($$$)<\/td>\n<td>N\u00edzk\u00e9 ($)<\/td>\n<td>Rozd\u011blen\u00e9 rozvad\u011b\u010de vy\u017eaduj\u00ed slo\u017eit\u00e9 zapojen\u00ed nulov\u00e9ho m\u016fstku a \u0159ez\u00e1n\u00ed p\u0159\u00edpojnic. RCBO jsou plug-and-play.<\/td>\n<\/tr>\n<tr>\n<td><strong>Materi\u00e1ly pro zapojen\u00ed<\/strong><\/td>\n<td>St\u0159edn\u00ed ($$)<\/td>\n<td>N\u00edzk\u00e9 ($)<\/td>\n<td>RCBO eliminuj\u00ed pot\u0159ebu rozs\u00e1hl\u00fdch sad nulov\u00fdch kabel\u016f.<\/td>\n<\/tr>\n<tr>\n<td><strong>\u00dadr\u017eba\/Prostoje<\/strong><\/td>\n<td>Vysok\u00e9 ($$$)<\/td>\n<td>N\u00edzk\u00e9 ($)<\/td>\n<td>N\u00e1klady na jeden v\u00fdpadek kancel\u00e1\u0159e zp\u016fsoben\u00fd vypnut\u00edm sd\u00edlen\u00e9ho RCCB obvykle p\u0159esahuj\u00ed \u00faspory na hardwaru.<\/td>\n<\/tr>\n<tr>\n<td><strong>Celkov\u00e9 n\u00e1klady na 10 let<\/strong><\/td>\n<td><strong>Vysok\u00e1<\/strong><\/td>\n<td><strong>N\u00edzk\u00e1<\/strong><\/td>\n<td><strong>RCBO v\u00edt\u011bz\u00ed v celkov\u00fdch n\u00e1kladech (TCO).<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Krom\u011b toho zjednodu\u0161en\u00e9 zapojen\u00ed sni\u017euje riziko chyby instalat\u00e9ra, konkr\u00e9tn\u011b \u201cp\u016fj\u010dov\u00e1n\u00ed nuly\u201d nebo \u201czk\u0159\u00ed\u017een\u00e9 nuly\u201d, kter\u00e9 se v rozd\u011blen\u00fdch rozvad\u011b\u010d\u00edch obt\u00ed\u017en\u011b odstra\u0148uj\u00ed.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/VIOX-circuit-breakers-installed-in-compact-distribution-board-showing-space-optimization.webp\" alt=\"VIOX circuit breakers installed in compact distribution board showing space optimization\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">Obr\u00e1zek 4: Jisti\u010de VIOX instalovan\u00e9 v kompaktn\u00edm rozvad\u011b\u010di ukazuj\u00ed optimalizaci prostoru.<\/figcaption><\/figure>\n<h2>Aplika\u010dn\u00ed matice: V\u00fdb\u011br spr\u00e1vn\u00e9 strategie<\/h2>\n<p>Ne ka\u017ed\u00e1 instalace vy\u017eaduje 100% RCBO. Hybridn\u00ed p\u0159\u00edstup \u010dasto p\u0159in\u00e1\u0161\u00ed nejlep\u0161\u00ed rovnov\u00e1hu mezi n\u00e1klady a v\u00fdkonem.<\/p>\n<h3>Tabulka 4: Doporu\u010den\u00e9 aplikace<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left; margin-bottom: 20px;\" border=\"1\" cellpadding=\"8\">\n<thead>\n<tr style=\"background-color: #f2f2f2;\">\n<th>Aplikace<\/th>\n<th>Doporu\u010den\u00e1 strategie<\/th>\n<th>Od\u016fvodn\u011bn\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Reziden\u010dn\u00ed (rozpo\u010det)<\/strong><\/td>\n<td><strong>Hybridn\u00ed<\/strong><\/td>\n<td>Pou\u017e\u00edvejte RCBO pro kritick\u00e9 obvody (ledni\u010dka, alarm, dom\u00e1c\u00ed kancel\u00e1\u0159). Pou\u017e\u00edvejte RCCB+MCB pro osv\u011btlen\u00ed\/z\u00e1suvky.<\/td>\n<\/tr>\n<tr>\n<td><strong>Reziden\u010dn\u00ed (\u0161pi\u010dkov\u00e9)<\/strong><\/td>\n<td><strong>Pln\u00e9 RCBO<\/strong><\/td>\n<td>Zabra\u0148uje ru\u0161iv\u00e9mu vyp\u00edn\u00e1n\u00ed modern\u00edch spot\u0159ebi\u010d\u016f (pra\u010dky, nab\u00edje\u010dky EV) s vysok\u00fdm zemn\u00edm svodem.<\/td>\n<\/tr>\n<tr>\n<td><strong>Komer\u010dn\u00ed kancel\u00e1\u0159<\/strong><\/td>\n<td><strong>Pln\u00e9 RCBO<\/strong><\/td>\n<td>N\u00e1klady na prostoje po\u010d\u00edta\u010d\u016f jsou ne\u00fanosn\u00e9. Vysok\u00e1 hustota IT za\u0159\u00edzen\u00ed zp\u016fsobuje kumulativn\u00ed svod, kter\u00fd vyp\u00edn\u00e1 sd\u00edlen\u00e9 RCCB.<\/td>\n<\/tr>\n<tr>\n<td><strong>Pr\u016fmyslov\u00e9 \u0159\u00edzen\u00ed<\/strong><\/td>\n<td><strong>Pln\u00e9 RCBO<\/strong><\/td>\n<td>Pohony motor\u016f (VFD) zav\u00e1d\u011bj\u00ed harmonick\u00fd svod. Jednotliv\u00e9 <a href=\"https:\/\/test.viox.com\/cs\/how-to-select-the-right-rcbo\/\">RCBO typu A nebo B<\/a> jsou nezbytn\u00e9.<\/td>\n<\/tr>\n<tr>\n<td><strong>Exteri\u00e9r\/Krajina<\/strong><\/td>\n<td><strong>RCBO<\/strong><\/td>\n<td>Venkovn\u00ed obvody jsou n\u00e1chyln\u00e9 k vniknut\u00ed vlhkosti. Izolujte je, abyste zabr\u00e1nili vypnut\u00ed hlavn\u00edho nap\u00e1jen\u00ed budovy.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Technick\u00e9 aspekty: Modern\u00ed z\u00e1t\u011b\u017ee a normy<\/h2>\n<h3>Zpracov\u00e1n\u00ed DC svodu (typ A, F a B)<\/h3>\n<p>Modern\u00ed elektronika \u2013 v\u010detn\u011b LED driver\u016f, pra\u010dek a nab\u00edje\u010dek EV \u2013 generuje DC slo\u017eky ve svodov\u00e9m proudu. Standardn\u00ed AC typ RCCB mohou b\u00fdt t\u00edmto DC proudem \"oslepeny\".<\/p>\n<ul>\n<li><strong>Nab\u00edjen\u00ed elektromobilu:<\/strong> Vy\u017eaduje <strong>Typ B<\/strong> ochranu nebo typ A s detekc\u00ed 6mA DC. Instalace RCCB typu B pro ochranu skupiny MCB je neuv\u011b\u0159iteln\u011b drah\u00e1. Pou\u017eit\u00ed jednoho <a href=\"https:\/\/test.viox.com\/cs\/rccb-ev-charging-type-b-vs-type-f-vs-type-ev\/\">Proudov\u00fd chr\u00e1ni\u010d typu B<\/a> pro EV obvod je mnohem n\u00e1kladov\u011b efektivn\u011bj\u0161\u00ed.<\/li>\n<\/ul>\n<h3>Vnit\u0159n\u00ed sou\u010d\u00e1sti<\/h3>\n<p>In\u017een\u00fdrskou v\u00fdzvou RCBO je miniaturizace. Kombinace toroidn\u00edho transform\u00e1toru <a href=\"https:\/\/test.viox.com\/cs\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">RCCB<\/a> a zh\u00e1\u0161ec\u00edch komor <a href=\"https:\/\/test.viox.com\/cs\/types-of-circuit-breakers\/\">MCB<\/a> do 18 mm vy\u017eaduje precizn\u00ed tepeln\u00e9 hospoda\u0159en\u00ed. In\u017een\u00fd\u0159i VIOX pou\u017e\u00edvaj\u00ed vysoce kvalitn\u00ed bimetaly a kompaktn\u00ed elektronick\u00e9 desky plo\u0161n\u00fdch spoj\u016f, aby zajistili, \u017ee odvod tepla odpov\u00edd\u00e1 <strong>IEC 61009<\/strong> limit\u016fm n\u00e1r\u016fstu teploty.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto;\" src=\"https:\/\/img.viox.com\/Technical-cutaway-diagram-comparing-VIOX-RCBO-integrated-design-vs-separate-RCCB-and-MCB-components.webp\" alt=\"Technical cutaway diagram comparing VIOX RCBO integrated design vs separate RCCB and MCB components\" \/><figcaption style=\"font-style: italic; color: #555; margin-top: 8px; font-size: 0.9em;\">Obr\u00e1zek 5: Technick\u00fd \u0159ez srovn\u00e1vaj\u00edc\u00ed integrovan\u00fd design VIOX RCBO vs. samostatn\u00e9 komponenty RCCB a MCB.<\/figcaption><\/figure>\n<h2>Z\u00e1v\u011br<\/h2>\n<p>Zat\u00edmco <strong>RCCB + MCB<\/strong> konfigurace z\u016fst\u00e1v\u00e1 platn\u00fdm a n\u00edzkon\u00e1kladov\u00fdm \u0159e\u0161en\u00edm pro jednoduch\u00e9 reziden\u010dn\u00ed aplikace, <strong>RCBO<\/strong> se stalo profesion\u00e1ln\u00edm standardem pro modern\u00ed elektrickou distribuci.<\/p>\n<p>\u201cProstorov\u00e1 krize\u201d v rozvad\u011b\u010d\u00edch, zp\u016fsoben\u00e1 obnovitelnou energi\u00ed a integrac\u00ed automatizace, \u010din\u00ed 18mm p\u016fdorys RCBO neoceniteln\u00fdm. V kombinaci s provozn\u00edmi v\u00fdhodami pln\u00e9 selektivity a sn\u00ed\u017een\u00edm n\u00e1klad\u016f na kabel\u00e1\u017e nab\u00edz\u00ed RCBO vy\u0161\u0161\u00ed n\u00e1vratnost investic (ROI) pro dodavatele i koncov\u00e9 u\u017eivatele.<\/p>\n<p>Pro partnery VIOX nen\u00ed doporu\u010dov\u00e1n\u00ed RCBO jen o nav\u00fd\u0161en\u00ed prodeje hardwaru; jde o poskytov\u00e1n\u00ed odoln\u00e9ho a do budoucna p\u0159ipraven\u00e9ho elektrick\u00e9ho syst\u00e9mu, kter\u00fd minimalizuje prostoje a zjednodu\u0161uje \u00fadr\u017ebu.<\/p>\n<h2>\u010cASTO KLADEN\u00c9 DOTAZY<\/h2>\n<p><strong>M\u016f\u017ee RCBO pln\u011b nahradit kombinaci RCCB+MCB?<\/strong><br \/>\nAno. RCBO poskytuje p\u0159esn\u011b stejn\u00e9 ochrann\u00e9 funkce (p\u0159et\u00ed\u017een\u00ed, zkrat a zemn\u00ed svod) jako kombinace RCCB a MCB, \u010dasto s lep\u0161\u00edm v\u00fdkonem ohledn\u011b selektivity.<\/p>\n<p><strong>Jak\u00e1 je \u00faspora m\u00edsta v typick\u00e9m 12-obvodov\u00e9m panelu?<\/strong><br \/>\nV jednof\u00e1zov\u00e9 desce s 12 obvody pou\u017eit\u00ed RCBO obvykle u\u0161et\u0159\u00ed 2 a\u017e 4 moduly \u0161\u00ed\u0159ky (36-72 mm) ve srovn\u00e1n\u00ed s uspo\u0159\u00e1d\u00e1n\u00edm RCCB s dvojit\u00fdm d\u011blen\u00fdm zat\u00ed\u017een\u00edm, co\u017e umo\u017e\u0148uje men\u0161\u00ed sk\u0159\u00ed\u0148 nebo v\u00edce prostoru pro kabel\u00e1\u017e.<\/p>\n<p><strong>Je RCBO dra\u017e\u0161\u00ed ne\u017e RCCB+MCB?<\/strong><br \/>\nZ hlediska hardwaru jsou jednotliv\u00e9 RCBO obecn\u011b dra\u017e\u0161\u00ed ne\u017e n\u00e1kup jednoho RCCB a n\u011bkolika MCB. Nicm\u00e9n\u011b, kdy\u017e zohledn\u00edte zkr\u00e1cenou dobu instalace (pr\u00e1ce) a jednodu\u0161\u0161\u00ed kabel\u00e1\u017e, celkov\u00fd rozd\u00edl v n\u00e1kladech na projekt je minim\u00e1ln\u00ed a v p\u0159\u00edpad\u011b slo\u017eit\u00fdch rozvad\u011b\u010d\u016f je \u010dasto levn\u011bj\u0161\u00ed varianta s RCBO.<\/p>\n<p><strong>Kter\u00e1 konfigurace nab\u00edz\u00ed lep\u0161\u00ed selektivitu?<\/strong><br \/>\nRCBO nab\u00edzej\u00ed vynikaj\u00edc\u00ed selektivitu. Pokud dojde k poru\u0161e, vybav\u00ed pouze specifick\u00e9 RCBO pro dan\u00fd obvod. U sestavy RCCB+MCB vybav\u00ed hlavn\u00ed RCCB, \u010d\u00edm\u017e odpoj\u00ed nap\u00e1jen\u00ed v\u0161ech MCB, kter\u00e9 jsou k n\u011bmu p\u0159idru\u017eeny (\u010dasto 4-8 obvod\u016f).<\/p>\n<p><strong>A co \u00fadr\u017eba a dlouhodob\u00e1 spolehlivost?<\/strong><br \/>\nRCBO zjednodu\u0161uj\u00ed \u00fadr\u017ebu, proto\u017ee vyhled\u00e1v\u00e1n\u00ed poruch je okam\u017eit\u00e9 \u2013 p\u0159esn\u011b v\u00edte, ve kter\u00e9m obvodu do\u0161lo k zemn\u00edmu spojen\u00ed. Spolehlivost je srovnateln\u00e1, a\u010dkoli RCBO sni\u017euj\u00ed po\u010det p\u0159ipojovac\u00edch bod\u016f (potenci\u00e1ln\u00edch bod\u016f selh\u00e1n\u00ed) uvnit\u0159 rozvad\u011b\u010de.<\/p>\n<p><strong>Kdy bych m\u011bl zvolit kombinaci RCCB+MCB nam\u00edsto RCBO?<\/strong><br \/>\nZvolte RCCB+MCB pro rozpo\u010dtov\u011b kritick\u00e9 reziden\u010dn\u00ed projekty, kde je minimalizace po\u010d\u00e1te\u010dn\u00edch n\u00e1klad\u016f na hardware jedinou prioritou a kde je \u201cne\u017e\u00e1douc\u00ed vyp\u00edn\u00e1n\u00ed\u201d (ztr\u00e1ta v\u00edce obvod\u016f najednou) pova\u017eov\u00e1no za p\u0159ijatelnou nep\u0159\u00edjemnost.<\/p>\n<\/div>\n<div class=\"simg-pop-btn\" style=\"top: 774.859px; left: 14px; display: none;\"><\/div>\n<div class=\"simg-pop-btn\" style=\"top: 774.859px; left: 14px; display: none;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>In the modern electrical landscape, the &#8220;spare space&#8221; in a distribution board has become a luxury. With the rapid integration of EV chargers, solar inverters, smart home automation modules, and surge protection devices (SPDs), panel builders are facing a critical density challenge. For decades, the standard configuration for residual current protection involved a &#8220;Split Load&#8221; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21291,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21289","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21289","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/comments?post=21289"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21289\/revisions"}],"predecessor-version":[{"id":21290,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21289\/revisions\/21290"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/21291"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=21289"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=21289"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=21289"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}