{"id":18343,"date":"2025-07-12T13:52:58","date_gmt":"2025-07-12T05:52:58","guid":{"rendered":"https:\/\/viox.com\/?p=18343"},"modified":"2026-03-17T23:21:20","modified_gmt":"2026-03-17T15:21:20","slug":"what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/","title":{"rendered":"Rozd\u00edl mezi MCB, MCCB, RCB, RCD, RCCB a RCBO: Pr\u016fvodce 2026"},"content":{"rendered":"<div class=\"product-intro\">\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Comparison-photo-of-MCB-MCCB-RCD-RCCB-and-RCBO-electrical-protection-devices.webp\" alt=\"Comparison photo of MCB, MCCB, RCD, RCCB, and RCBO electrical protection devices\" \/><figcaption><em>Srovn\u00e1vac\u00ed fotografie elektrick\u00fdch ochrann\u00fdch za\u0159\u00edzen\u00ed MCB, MCCB, RCD, RCCB a RCBO.<\/em><\/figcaption><\/figure>\n<p>Pokud se sna\u017e\u00edte pochopit rozd\u00edl mezi <code>MCB<\/code>, <code>MCCB<\/code>, <code>RCB<\/code>, <code>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/code>, <code>RCCB<\/code>a <code>RCBO<\/code>, kr\u00e1tk\u00e1 odpov\u011b\u010f zn\u00ed:<\/p>\n<ul>\n<li><code>MCB<\/code> a <code>MCCB<\/code> chr\u00e1n\u00ed hlavn\u011b proti <strong>p\u0159et\u00ed\u017een\u00ed<\/strong> a <strong>zkrat<\/strong><\/li>\n<li><code>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/code>, <code>RCCB<\/code>a <code>RCB<\/code> se pou\u017e\u00edvaj\u00ed hlavn\u011b pro <strong>proudov\u00fd chr\u00e1ni\u010d nebo ochrana proti zemn\u00edmu svodu<\/strong><\/li>\n<li><code>RCBO<\/code> kombinuje <strong>proudov\u00e1 ochrana<\/strong> s <strong>nadproudovou ochranu<\/strong> v jednom za\u0159\u00edzen\u00ed<\/li>\n<\/ul>\n<p>To je hlavn\u00ed rozd\u00edl. Zmatek obvykle vznik\u00e1 proto, \u017ee n\u011bkter\u00e9 z t\u011bchto term\u00edn\u016f jsou n\u00e1zvy za\u0159\u00edzen\u00ed, zat\u00edmco jin\u00e9 jsou \u0161ir\u0161\u00ed kategorie term\u00edn\u016f, kter\u00e9 se na r\u016fzn\u00fdch trz\u00edch pou\u017e\u00edvaj\u00ed odli\u0161n\u011b.<\/p>\n<p>Tato p\u0159\u00edru\u010dka je navr\u017eena tak, aby tento rozd\u00edl objasnila jasn\u011b, rychle a prakticky.<\/p>\n<h2>Rychl\u00e1 srovn\u00e1vac\u00ed tabulka<\/h2>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Infographic-comparing-the-differences-between-MCB-MCCB-RCB-RCD-RCCB-and-RCBO.webp\" alt=\"Infographic comparing the differences between MCB, MCCB, RCB, RCD, RCCB, and RCBO\" \/><figcaption><em>Technick\u00e1 infografika shrnuj\u00edc\u00ed hlavn\u00ed ochrann\u00e9 role a omezen\u00ed r\u016fzn\u00fdch obvodov\u00fdch za\u0159\u00edzen\u00ed.<\/em><\/figcaption><\/figure>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">Term\u00edn<\/th>\n<th style=\"padding: 8px;\">Cel\u00fd n\u00e1zev<\/th>\n<th style=\"padding: 8px;\">Hlavn\u00ed ochrann\u00e1 role<\/th>\n<th style=\"padding: 8px;\">Co samo o sob\u011b ned\u011bl\u00e1<\/th>\n<th style=\"padding: 8px;\">Typick\u00e9 pou\u017eit\u00ed<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">MCB<\/td>\n<td style=\"padding: 8px;\">Miniaturn\u00ed jisti\u010d<\/td>\n<td style=\"padding: 8px;\">Ochrana proti p\u0159et\u00ed\u017een\u00ed a zkratu<\/td>\n<td style=\"padding: 8px;\">Neposkytuje proudovou ochranu<\/td>\n<td style=\"padding: 8px;\">Koncov\u00e9 obvody, ochrana odbo\u010dek, reziden\u010dn\u00ed a lehk\u00e9 komer\u010dn\u00ed panely<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">MCCB<\/td>\n<td style=\"padding: 8px;\">Jisti\u010d s lisovan\u00fdm pouzdrem<\/td>\n<td style=\"padding: 8px;\">Vy\u0161\u0161\u00ed kapacita ochrany proti p\u0159et\u00ed\u017een\u00ed a zkratu<\/td>\n<td style=\"padding: 8px;\">Samo o sob\u011b neposkytuje proudovou ochranu<\/td>\n<td style=\"padding: 8px;\">Komer\u010dn\u00ed a pr\u016fmyslov\u00e9 rozvody, v\u011bt\u0161\u00ed nap\u00e1je\u010de<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCB<\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d<\/td>\n<td style=\"padding: 8px;\">Obvykle se odkazuje na terminologii proudov\u00fdch ochrann\u00fdch za\u0159\u00edzen\u00ed<\/td>\n<td style=\"padding: 8px;\">V\u00fdznam se m\u016f\u017ee li\u0161it podle trhu a kontextu produktu<\/td>\n<td style=\"padding: 8px;\">Pou\u017e\u00edv\u00e1 se voln\u011b v n\u011bkter\u00fdch kataloz\u00edch nebo konverzac\u00edch<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">proudov\u00fd chr\u00e1ni\u010d (RCD)<\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d<\/td>\n<td style=\"padding: 8px;\">\u0160irok\u00e1 kategorie pro za\u0159\u00edzen\u00ed pro detekci rezidu\u00e1ln\u00edho proudu<\/td>\n<td style=\"padding: 8px;\">Ne v\u017edy se jedn\u00e1 o jeden p\u0159esn\u00fd typ za\u0159\u00edzen\u00ed<\/td>\n<td style=\"padding: 8px;\">Obecn\u00fd jazyk ochrany proti rezidu\u00e1ln\u00edmu proudu<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCCB<\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d<\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d nebo ochrana proti zemn\u00edmu svodu<\/td>\n<td style=\"padding: 8px;\">Neposkytuje ochranu proti p\u0159et\u00ed\u017een\u00ed nebo zkratu<\/td>\n<td style=\"padding: 8px;\">Ochrana proti \u00farazu elektrick\u00fdm proudem tam, kde je p\u0159\u00edtomna samostatn\u00e1 nadproudov\u00e1 ochrana<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">RCBO<\/td>\n<td style=\"padding: 8px;\">Proudov\u00fd chr\u00e1ni\u010d s nadproudovou ochranou<\/td>\n<td style=\"padding: 8px;\">Kombinovan\u00e1 proudov\u00e1, p\u0159et\u00ed\u017een\u00ed a zkratov\u00e1 ochrana<\/td>\n<td style=\"padding: 8px;\">Neodstra\u0148uje pot\u0159ebu spr\u00e1vn\u00e9ho dimenzov\u00e1n\u00ed a koordinace<\/td>\n<td style=\"padding: 8px;\">Obvody vy\u017eaduj\u00edc\u00ed kombinovanou ochranu v jednom za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pro \u010dten\u00e1\u0159e, kte\u0159\u00ed cht\u011bj\u00ed nejprve definici za\u0159\u00edzen\u00ed po za\u0159\u00edzen\u00ed, m\u00e1 VIOX ji\u017e podp\u016frn\u00e9 str\u00e1nky pro <a href=\"https:\/\/test.viox.com\/cs\/mcb-full-form-in-electrical\/\">Cel\u00fd n\u00e1zev MCB<\/a>, <a href=\"https:\/\/test.viox.com\/cs\/mccb-full-form-molded-case-circuit-breaker\/\">Zkratka MCCB<\/a>a <a href=\"https:\/\/test.viox.com\/cs\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">\u00dapln\u00fd formul\u00e1\u0159 RCCB<\/a>.<\/p>\n<h2>Co ka\u017ed\u00fd term\u00edn znamen\u00e1<\/h2>\n<p>P\u0159ed porovn\u00e1n\u00edm t\u011bchto za\u0159\u00edzen\u00ed je u\u017eite\u010dn\u00e9 odd\u011blit <strong>term\u00edny nadproudov\u00e9 ochrany<\/strong> z <strong>term\u00edny proudov\u00e9 ochrany<\/strong>.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Technical-diagram-showing-how-MCB-RCCB-and-RCBO-protection-functions-differ.webp\" alt=\"Technical diagram showing how MCB, RCCB, and RCBO protection functions differ\" \/><figcaption><em>Technick\u00e9 sch\u00e9ma zn\u00e1zor\u0148uj\u00edc\u00ed vnit\u0159n\u00ed logiku ochrany a vyp\u00ednac\u00ed cesty pro za\u0159\u00edzen\u00ed MCB, RCCB a RCBO.<\/em><\/figcaption><\/figure>\n<h3>MCB<\/h3>\n<p><code>MCB<\/code> znamen\u00e1 <strong>Miniaturn\u00ed jisti\u010d<\/strong>.<\/p>\n<p>Pou\u017e\u00edv\u00e1 se hlavn\u011b k ochran\u011b obvod\u016f proti:<\/p>\n<ul>\n<li>p\u0159et\u00ed\u017een\u00ed<\/li>\n<li>zkrat<\/li>\n<\/ul>\n<p>MCB jsou b\u011b\u017en\u00e9 v reziden\u010dn\u00edch rozvad\u011b\u010d\u00edch, koncov\u00fdch obvodech a leh\u010d\u00edch komer\u010dn\u00edch aplikac\u00edch. Jsou kompaktn\u00ed, \u0161iroce dostupn\u00e9 a b\u011b\u017en\u011b se vyb\u00edraj\u00ed podle jmenovit\u00e9ho proudu, vyp\u00ednac\u00ed charakteristiky, vyp\u00ednac\u00ed schopnosti a konfigurace p\u00f3l\u016f.<\/p>\n<p>Pokud chcete podrobn\u011bj\u0161\u00ed str\u00e1nku s definic\u00ed, viz <a href=\"https:\/\/test.viox.com\/cs\/mcb-full-form-in-electrical\/\">MCB \u2013 pln\u00fd tvar v elektrotechnice<\/a>.<\/p>\n<h3>MCCB<\/h3>\n<p><code>MCCB<\/code> znamen\u00e1 <strong>Jisti\u010d s lisovan\u00fdm pouzdrem<\/strong>.<\/p>\n<p>MCCB pln\u00ed stejnou z\u00e1kladn\u00ed ochrannou roli jako MCB, ale obecn\u011b se pou\u017e\u00edv\u00e1 tam, kde jsou vy\u017eadov\u00e1ny vy\u0161\u0161\u00ed \u00farovn\u011b proudu, v\u011bt\u0161\u00ed \u00farovn\u011b poruch nebo nastaviteln\u011bj\u0161\u00ed nastaven\u00ed ochrany.<\/p>\n<p>Typick\u00e9 d\u016fvody pro pou\u017eit\u00ed MCCB m\u00edsto MCB zahrnuj\u00ed:<\/p>\n<ul>\n<li>v\u011bt\u0161\u00ed nap\u00e1jec\u00ed obvody<\/li>\n<li>pr\u016fmyslov\u00e9 panely<\/li>\n<li>motorov\u00e9 nebo distribu\u010dn\u00ed aplikace s vy\u0161\u0161\u00ed poruchovou energi\u00ed<\/li>\n<li>pot\u0159eba nastaviteln\u00fdch nastaven\u00ed vypnut\u00ed v n\u011bkter\u00fdch proveden\u00edch<\/li>\n<\/ul>\n<p>Pro specializovan\u00fd \u010dl\u00e1nek s definic\u00ed viz <a href=\"https:\/\/test.viox.com\/cs\/mccb-full-form-molded-case-circuit-breaker\/\">Cel\u00fd n\u00e1zev MCCB Lisovan\u00fd jisti\u010d<\/a>.<\/p>\n<h3>RCB<\/h3>\n<p><code>RCB<\/code> obvykle se odkazuje na <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>, ale tento term\u00edn je m\u00e9n\u011b p\u0159esn\u00fd ne\u017e <code>RCCB<\/code> nebo <code>RCBO<\/code>.<\/p>\n<p>V praxi, <code>RCB<\/code> se \u010dasto pou\u017e\u00edv\u00e1 voln\u011b v konverzac\u00edch, star\u0161\u00edch dokumentech nebo sm\u00ed\u0161en\u00fdch kataloz\u00edch. Proto to m\u016f\u017ee zp\u016fsobit zmatek. N\u011bkte\u0159\u00ed lid\u00e9 jej pou\u017e\u00edvaj\u00ed jako obecn\u00fd \u0161t\u00edtek pro proudov\u00e9 ochrann\u00e9 prvky, zat\u00edmco jin\u00ed pou\u017e\u00edvaj\u00ed konkr\u00e9tn\u011bj\u0161\u00ed n\u00e1zvy, jako nap\u0159. <code>RCCB<\/code> nebo <code>RCBO<\/code>.<\/p>\n<p>Tak\u017ee pokud je ot\u00e1zka technick\u00e1, je lep\u0161\u00ed se u toho nezastavit <code>RCB<\/code>. Potvr\u010fte, zda je dan\u00e9 za\u0159\u00edzen\u00ed:<\/p>\n<ul>\n<li>an <code>RCCB<\/code><\/li>\n<li>an <code>RCBO<\/code><\/li>\n<li>nebo \u0161ir\u0161\u00ed <code>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/code> odkaz na kategorii<\/li>\n<\/ul>\n<h3>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/h3>\n<p><code>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/code> znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>.<\/p>\n<p>Toto je obvykle \u0161ir\u0161\u00ed kategori\u00e1ln\u00ed term\u00edn. Popisuje za\u0159\u00edzen\u00ed, kter\u00e1 monitoruj\u00ed nerovnov\u00e1hu mezi f\u00e1zov\u00fdmi a nulov\u00fdmi proudy a vyp\u00ednaj\u00ed, kdy\u017e zbytkov\u00fd proud p\u0159ekro\u010d\u00ed prahovou hodnotu za\u0159\u00edzen\u00ed.<\/p>\n<p>To znamen\u00e1 <code>RCCB<\/code> a <code>RCBO<\/code> mohou oba spadat do \u0161ir\u0161\u00ed diskuze o ochran\u011b proti zbytkov\u00e9mu proudu, ale nejsou to identick\u00e1 za\u0159\u00edzen\u00ed.<\/p>\n<h3>RCCB<\/h3>\n<p><code>RCCB<\/code> znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d<\/strong>.<\/p>\n<p>Jeho \u00fakolem je detekovat zbytkov\u00fd proud nebo zemn\u00ed svod a odpojit obvod. Nicm\u00e9n\u011b, RCCB <strong>sama o sob\u011b neposkytuje ochranu proti p\u0159et\u00ed\u017een\u00ed a zkratu<\/strong>.<\/p>\n<p>To je jeden z nejd\u016fle\u017eit\u011bj\u0161\u00edch rozd\u00edl\u016f na t\u00e9to str\u00e1nce.<\/p>\n<h3>RCBO<\/h3>\n<p><code>RCBO<\/code> znamen\u00e1 <strong>Proudov\u00fd chr\u00e1ni\u010d s nadproudovou ochranou<\/strong>.<\/p>\n<p>RCBO kombinuje:<\/p>\n<ul>\n<li>proudov\u00e1 ochrana<\/li>\n<li>ochranu proti p\u0159et\u00ed\u017een\u00ed<\/li>\n<li>ochranu proti zkratu<\/li>\n<\/ul>\n<p>v jednom t\u011ble za\u0159\u00edzen\u00ed.<\/p>\n<p>D\u00edky tomu je obzvl\u00e1\u0161t\u011b u\u017eite\u010dn\u00fd tam, kde n\u00e1vrh\u00e1\u0159i cht\u011bj\u00ed kombinovanou ochranu na \u00farovni obvodu bez p\u00e1rov\u00e1n\u00ed samostatn\u00e9ho RCCB a MCB pro stejn\u00fd koncov\u00fd obvod.<\/p>\n<p>Pro v\u00edce informac\u00ed zam\u011b\u0159en\u00fdch na RCBO m\u00e1 VIOX tak\u00e9 <a href=\"https:\/\/test.viox.com\/cs\/how-to-select-the-right-rcbo\/\">Jak vybrat spr\u00e1vn\u00fd proudov\u00fd chr\u00e1ni\u010d (RCBO)<\/a> a <a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">Srovn\u00e1n\u00ed RCBO vs RCCB MCB Prostor N\u00e1klady Selektivita<\/a>.<\/p>\n<h2>MCB vs MCCB<\/h2>\n<p>Rozd\u00edl mezi <code>MCB<\/code> a <code>MCCB<\/code> nen\u00ed v tom, \u017ee jeden chr\u00e1n\u00ed a druh\u00fd ne. Oba se pou\u017e\u00edvaj\u00ed pro nadproudovou ochranu. Skute\u010dn\u00fd rozd\u00edl je <strong>rozsah pou\u017eit\u00ed a schopnosti<\/strong>.<\/p>\n<h3>MCB se obvykle l\u00e9pe hod\u00ed pro:<\/h3>\n<ul>\n<li>koncov\u00e9 obvody<\/li>\n<li>ochranu odbo\u010dek<\/li>\n<li>aplikace s men\u0161\u00edm proudem<\/li>\n<li>reziden\u010dn\u00ed a lehk\u00e9 komer\u010dn\u00ed rozvad\u011b\u010de<\/li>\n<\/ul>\n<h3>MCCB se obvykle l\u00e9pe hod\u00ed pro:<\/h3>\n<ul>\n<li>nap\u00e1je\u010de<\/li>\n<li>v\u011bt\u0161\u00ed distribu\u010dn\u00ed rozvad\u011b\u010de<\/li>\n<li>aplikace s vy\u0161\u0161\u00edm proudem<\/li>\n<li>instalace, kter\u00e9 mohou vy\u017eadovat \u0161ir\u0161\u00ed flexibilitu nastaven\u00ed<\/li>\n<\/ul>\n<h3>Tabulka MCB vs MCCB<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">Faktor<\/th>\n<th style=\"padding: 8px;\">MCB<\/th>\n<th style=\"padding: 8px;\">MCCB<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">Typick\u00e1 role<\/td>\n<td style=\"padding: 8px;\">Ochrana koncov\u00e9ho obvodu<\/td>\n<td style=\"padding: 8px;\">Ochrana nap\u00e1je\u010de a v\u011bt\u0161\u00edho obvodu<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Tendence proudov\u00e9ho rozsahu<\/td>\n<td style=\"padding: 8px;\">Spodn\u00ed<\/td>\n<td style=\"padding: 8px;\">Vy\u0161\u0161\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Nastavitelnost nastaven\u00ed<\/td>\n<td style=\"padding: 8px;\">Obvykle omezen\u00e1<\/td>\n<td style=\"padding: 8px;\">\u010casto \u0161ir\u0161\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">B\u011b\u017en\u00e9 prost\u0159ed\u00ed<\/td>\n<td style=\"padding: 8px;\">Obytn\u00e9 a lehk\u00e9 komer\u010dn\u00ed prostory<\/td>\n<td style=\"padding: 8px;\">Komer\u010dn\u00ed a pr\u016fmyslov\u00e9<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Fyzick\u00e1 velikost<\/td>\n<td style=\"padding: 8px;\">Kompaktn\u011bj\u0161\u00ed<\/td>\n<td style=\"padding: 8px;\">V\u011bt\u0161\u00ed a odoln\u011bj\u0161\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Pro hlub\u0161\u00ed \u010dl\u00e1nek zam\u011b\u0159en\u00fd pouze na tuto dvojici viz <a href=\"https:\/\/test.viox.com\/cs\/mccb-vs-mcb\/\">MCCB vs MCB<\/a>.<\/p>\n<h2>RCB vs RCD vs RCCB<\/h2>\n<p>Tato skupina vytv\u00e1\u0159\u00ed nejv\u011bt\u0161\u00ed zmatek, proto\u017ee n\u00e1zvy zn\u011bj\u00ed podobn\u011b, ale ne v\u017edy se pou\u017e\u00edvaj\u00ed na stejn\u00e9 \u00farovni specifi\u010dnosti.<\/p>\n<h3>Nejjednodu\u0161\u0161\u00ed zp\u016fsob, jak jim porozum\u011bt<\/h3>\n<ul>\n<li><code>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/code> je obvykle <strong>\u0161irok\u00fd kategori\u00e1ln\u00ed term\u00edn<\/strong><\/li>\n<li><code>RCCB<\/code> je <strong>specifick\u00fd typ za\u0159\u00edzen\u00ed<\/strong><\/li>\n<li><code>RCB<\/code> je \u010dasto <strong>voln\u00e9 nebo m\u00e9n\u011b p\u0159esn\u00e9 ozna\u010den\u00ed<\/strong><\/li>\n<\/ul>\n<p>To znamen\u00e1, \u017ee kdy\u017e se n\u011bkdo zept\u00e1 na <code>RCD vs RCCB<\/code>, odpov\u011b\u010f \u010dasto nen\u00ed p\u0159\u00edm\u00e9 srovn\u00e1n\u00ed \u201clep\u0161\u00ed nebo hor\u0161\u00ed\u201d. Je to sp\u00ed\u0161e ot\u00e1zka <strong>kategorie vs specifick\u00fd n\u00e1zev za\u0159\u00edzen\u00ed<\/strong>.<\/p>\n<h3>Praktick\u00e1 interpretace<\/h3>\n<p>Pokud specifikace, sch\u00e9ma rozvad\u011b\u010de nebo katalog produkt\u016f \u0159\u00edk\u00e1 <code>proudov\u00fd chr\u00e1ni\u010d (RCD)<\/code>, m\u011bli byste zkontrolovat:<\/p>\n<ul>\n<li>zda to znamen\u00e1 obecnou funkci ochrany proti zbytkov\u00e9mu proudu<\/li>\n<li>zda je zam\u00fd\u0161len\u00e9 za\u0159\u00edzen\u00ed skute\u010dn\u011b <code>RCCB<\/code><\/li>\n<li>zda projekt skute\u010dn\u011b pot\u0159ebuje <code>RCBO<\/code> m\u00edsto toho<\/li>\n<\/ul>\n<p>Zde \u0161patn\u00e1 terminologie zp\u016fsobuje chyby v n\u00e1kupu.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Electrician-inspecting-a-distribution-board-with-MCB-RCCB-and-RCBO-devices-installed.webp\" alt=\"Electrician inspecting a distribution board with MCB, RCCB, and RCBO devices installed\" \/><figcaption><em>Elektrik\u00e1\u0159 bezpe\u010dn\u011b kontroluje distribu\u010dn\u00ed rozvad\u011b\u010d s kombinac\u00ed komponent MCB, RCCB a RCBO.<\/em><\/figcaption><\/figure>\n<h2>Pro\u010d je RCBO odli\u0161n\u00e9<\/h2>\n<p>RCBO je d\u016fle\u017eit\u00e9, proto\u017ee p\u0159eklenuje dv\u011b v\u00fd\u0161e uveden\u00e9 rodiny ochran.<\/p>\n<p>. <code>MCB<\/code> chr\u00e1n\u00ed proti nadproudu.<br \/>\n. <code>RCCB<\/code> chr\u00e1n\u00ed proti zbytkov\u00e9mu proudu.<br \/>\n. <code>RCBO<\/code> kombinuje oboj\u00ed.<\/p>\n<h3>RCBO vs RCCB<\/h3>\n<p>Pokud porovn\u00e1te <code>RCBO<\/code> a <code>RCCB<\/code>, kl\u00ed\u010dov\u00fd rozd\u00edl je jednoduch\u00fd:<\/p>\n<ul>\n<li><code>RCCB<\/code> vy\u017eaduje samostatnou nadproudovou ochranu jinde v n\u00e1vrhu syst\u00e9mu<\/li>\n<li><code>RCBO<\/code> ji\u017e zahrnuje nadproudovou ochranu<\/li>\n<\/ul>\n<p>To m\u016f\u017ee ovlivnit:<\/p>\n<ul>\n<li>prostor panelu<\/li>\n<li>strategii selektivity obvod\u016f<\/li>\n<li>strukturu n\u00e1klad\u016f<\/li>\n<li>izolaci poruch na \u00farovni obvodu<\/li>\n<\/ul>\n<p>Pro hlub\u0161\u00ed verzi tohoto srovn\u00e1n\u00ed pou\u017eijte <a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">Srovn\u00e1n\u00ed RCBO vs RCCB MCB Prostor N\u00e1klady Selektivita<\/a>.<\/p>\n<h3>RCBO vs MCB<\/h3>\n<p>Pokud porovn\u00e1te <code>RCBO<\/code> a <code>MCB<\/code>, rozd\u00edl je tak\u00e9 p\u0159\u00edmo\u010dar\u00fd:<\/p>\n<ul>\n<li><code>MCB<\/code> = pouze p\u0159et\u00ed\u017een\u00ed a zkrat<\/li>\n<li><code>RCBO<\/code> = p\u0159et\u00ed\u017een\u00ed, zkrat a zbytkov\u00fd proud<\/li>\n<\/ul>\n<p>To automaticky neznamen\u00e1, \u017ee RCBO je v\u017edy spr\u00e1vn\u00e1 odpov\u011b\u010f. Znamen\u00e1 to, \u017ee funkce ochrany je \u0161ir\u0161\u00ed a aplikace by m\u011bla rozhodnout o volb\u011b.<\/p>\n<h2>Jak vybrat spr\u00e1vn\u00e9 za\u0159\u00edzen\u00ed<\/h2>\n<p>Pokud \u010dten\u00e1\u0159 ji\u017e neporovn\u00e1v\u00e1 pouze n\u00e1zvy, dal\u0161\u00ed ot\u00e1zkou je obvykle v\u00fdb\u011br.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\"><img decoding=\"async\" style=\"max-width: 100%; height: auto; display: block; margin: 0 auto;\" src=\"https:\/\/img.viox.com\/Annotated-panel-layout-showing-typical-applications-of-MCB-MCCB-RCCB-and-RCBO-in-one-system.webp\" alt=\"Annotated panel layout showing typical applications of MCB, MCCB, RCCB, and RCBO in one system\" \/><figcaption><em>Anotovan\u00e1 mapa n\u00edzkonap\u011b\u0165ov\u00e9ho rozvad\u011b\u010de demonstruj\u00edc\u00ed typick\u00e9 re\u00e1ln\u00e9 aplika\u010dn\u00ed sekce pro ka\u017ed\u00fd typ za\u0159\u00edzen\u00ed.<\/em><\/figcaption><\/figure>\n<h3>Tabulka v\u00fdb\u011bru<\/h3>\n<table style=\"border-collapse: collapse; width: 100%; text-align: left;\" border=\"1\">\n<thead>\n<tr>\n<th style=\"padding: 8px;\">Situace<\/th>\n<th style=\"padding: 8px;\">Obvykle za\u010dn\u011bte zv\u00e1\u017een\u00edm<\/th>\n<th style=\"padding: 8px;\">Pro\u010d<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 8px;\">Standardn\u00ed nadproudov\u00e1 ochrana koncov\u00e9ho obvodu<\/td>\n<td style=\"padding: 8px;\">MCB<\/td>\n<td style=\"padding: 8px;\">Kompaktn\u00ed a vhodn\u00fd pro mnoho odbo\u010dn\u00fdch obvod\u016f<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Vy\u0161\u0161\u00ed proudov\u00fd p\u0159\u00edvod nebo pr\u016fmyslov\u00e9 rozvody<\/td>\n<td style=\"padding: 8px;\">MCCB<\/td>\n<td style=\"padding: 8px;\">L\u00e9pe se hod\u00ed pro aplikace s vy\u0161\u0161\u00ed kapacitou<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Ochrana proti \u00faniku se samostatn\u00fdm nadproudov\u00fdm za\u0159\u00edzen\u00edm<\/td>\n<td style=\"padding: 8px;\">RCCB<\/td>\n<td style=\"padding: 8px;\">Role ochrany proti zbytkov\u00e9mu proudu<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Kombinovan\u00e1 ochrana proti \u00faniku a nadproudu na jednom obvodu<\/td>\n<td style=\"padding: 8px;\">RCBO<\/td>\n<td style=\"padding: 8px;\">P\u0159in\u00e1\u0161\u00ed v\u00edce ochrann\u00fdch funkc\u00ed do jednoho za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 8px;\">Terminologie zbytkov\u00e9ho proudu v \u0161irok\u00e9m smyslu<\/td>\n<td style=\"padding: 8px;\">proudov\u00fd chr\u00e1ni\u010d (RCD)<\/td>\n<td style=\"padding: 8px;\">Kategorie term\u00edn, ne v\u017edy kone\u010dn\u00e1 volba za\u0159\u00edzen\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3>Ot\u00e1zky, kter\u00e9 si polo\u017eit p\u0159ed v\u00fdb\u011brem<\/h3>\n<ul>\n<li>Je hlavn\u00ed pot\u0159ebou nadproudov\u00e1 ochrana, ochrana proti zbytkov\u00e9mu proudu nebo oboj\u00ed?<\/li>\n<li>Jedn\u00e1 se o koncov\u00fd obvod nebo v\u011bt\u0161\u00ed nap\u00e1jec\u00ed obvod?<\/li>\n<li>Jak\u00e1 je o\u010dek\u00e1van\u00e1 \u00farove\u0148 poruchy?<\/li>\n<li>Je prostor panelu omezen\u00fd?<\/li>\n<li>Vy\u017eaduje n\u00e1vrh izolaci na \u00farovni obvodu nam\u00edsto seskupov\u00e1n\u00ed mnoha obvod\u016f pod jedno za\u0159\u00edzen\u00ed pro zbytkov\u00fd proud?<\/li>\n<li>Co vy\u017eaduj\u00ed m\u00edstn\u00ed pravidla, projektov\u00e9 specifikace a pokyny v\u00fdrobce?<\/li>\n<\/ul>\n<h2>Nej\u010dast\u011bj\u0161\u00ed chyby, kter\u00fdch se vyvarujte<\/h2>\n<p>Toto jsou chyby, kter\u00e9 zp\u016fsobuj\u00ed nejv\u011bt\u0161\u00ed zmatek v re\u00e1ln\u00fdch projektech:<\/p>\n<h3>1. Pova\u017eov\u00e1n\u00ed RCD, RCCB a RCB za pln\u011b zam\u011bniteln\u00e9<\/h3>\n<p>Jsou to \u00fazce souvisej\u00edc\u00ed term\u00edny, ale ne v\u017edy p\u0159esn\u00e9 n\u00e1hrady. Jazyk kategori\u00ed a pojmenov\u00e1n\u00ed za\u0159\u00edzen\u00ed by m\u011bly b\u00fdt pe\u010dliv\u011b zkontrolov\u00e1ny.<\/p>\n<h3>2. P\u0159edpoklad, \u017ee RCCB poskytuje nadproudovou ochranu<\/h3>\n<p>Neposkytuje. RCCB se zam\u011b\u0159uje na ochranu proti zbytkov\u00e9mu proudu a mus\u00ed b\u00fdt pou\u017e\u00edv\u00e1n ve spr\u00e1vn\u00e9 architektu\u0159e ochrany.<\/p>\n<h3>3. V\u00fdb\u011br MCB, kdy\u017e je pot\u0159eba kombinovan\u00e1 ochrana<\/h3>\n<p>Pokud obvod pot\u0159ebuje ochranu proti zbytkov\u00e9mu proudu i nadproudu v jednom za\u0159\u00edzen\u00ed, samotn\u00fd MCB nesta\u010d\u00ed.<\/p>\n<h3>4. Pou\u017e\u00edv\u00e1n\u00ed RCBO jako obecn\u00e9ho v\u00fdchoz\u00edho nastaven\u00ed bez kontroly vhodnosti aplikace<\/h3>\n<p>RCBO je v\u00fdkonn\u00fd, ale v\u00fdb\u011br st\u00e1le z\u00e1vis\u00ed na n\u00e1vrhu obvodu, jmenovit\u00e9m proudu, citlivosti na zbytkov\u00fd proud, vyp\u00ednac\u00ed schopnosti a koordinaci.<\/p>\n<h3>5. Ignorov\u00e1n\u00ed rozd\u00edlu mezi proudov\u00fdm\/aplika\u010dn\u00edm rozsahem MCB a MCCB<\/h3>\n<p>Tato za\u0159\u00edzen\u00ed se p\u0159ekr\u00fdvaj\u00ed v konceptu, ale ne v\u017edy ve stejn\u00e9m aplika\u010dn\u00edm okn\u011b.<\/p>\n<h2>Souvisej\u00edc\u00ed<\/h2>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/cs\/mcb-full-form-in-electrical\/\">MCB \u2013 pln\u00fd tvar v elektrotechnice<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/mccb-full-form-molded-case-circuit-breaker\/\">Cel\u00fd n\u00e1zev MCCB Lisovan\u00fd jisti\u010d<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/rccb-full-form-understanding-residual-current-circuit-breakers\/\">RCCB Pln\u00e1 forma Porozum\u011bn\u00ed jisti\u010d\u016fm zbytkov\u00e9ho proudu<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/mccb-vs-mcb\/\">MCCB vs MCB<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-rccb-mcb-comparison-space-cost-selectivity\/\">Srovn\u00e1n\u00ed RCBO vs RCCB MCB Prostor N\u00e1klady Selektivita<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/rcbo-vs-afdd-difference-guide\/\">Pr\u016fvodce rozd\u00edly RCBO vs AFDD<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/how-to-select-the-right-rcbo\/\">Jak vybrat spr\u00e1vn\u00fd proudov\u00fd chr\u00e1ni\u010d (RCBO)<\/a><\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/how-to-select-an-mccb-for-a-panel\/\">Jak vybrat MCCB pro panel<\/a><\/li>\n<\/ul>\n<h2>\u010cASTO KLADEN\u00c9 DOTAZY<\/h2>\n<h3>Jak\u00fd je hlavn\u00ed rozd\u00edl mezi MCB a MCCB?<\/h3>\n<p>Oba chr\u00e1n\u00ed proti p\u0159et\u00ed\u017een\u00ed a zkratu, ale MCCB se obecn\u011b pou\u017e\u00edvaj\u00ed pro v\u011bt\u0161\u00ed aplikace s vy\u0161\u0161\u00ed kapacitou, zat\u00edmco MCB se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed pro koncov\u00e9 obvody a leh\u010d\u00ed distribuci.<\/p>\n<h3>Jak\u00fd je rozd\u00edl mezi RCD a RCCB?<\/h3>\n<p>RCD je obvykle \u0161ir\u0161\u00ed kategori\u00ed, zat\u00edmco RCCB se vztahuje ke konkr\u00e9tn\u011bj\u0161\u00edmu proudov\u00e9mu chr\u00e1ni\u010di.<\/p>\n<h3>Je RCB tot\u00e9\u017e co RCCB?<\/h3>\n<p>Ne v\u017edy. RCB se \u010dasto pou\u017e\u00edv\u00e1 jako voln\u00fd nebo zjednodu\u0161en\u00fd term\u00edn, zat\u00edmco RCCB je p\u0159esn\u011bj\u0161\u00ed n\u00e1zev za\u0159\u00edzen\u00ed.<\/p>\n<h3>Jak\u00fd je rozd\u00edl mezi RCCB a RCBO?<\/h3>\n<p>Proudov\u00fd chr\u00e1ni\u010d (RCCB) poskytuje pouze ochranu proti rezidu\u00e1ln\u00edmu proudu, zat\u00edmco jisti\u010d s proudov\u00fdm chr\u00e1ni\u010dem (RCBO) kombinuje ochranu proti rezidu\u00e1ln\u00edmu proudu s ochranou proti p\u0159et\u00ed\u017een\u00ed a zkratu.<\/p>\n<h3>Je RCBO lep\u0161\u00ed ne\u017e MCB?<\/h3>\n<p>Ne v ka\u017ed\u00e9 aplikaci. RCBO poskytuje \u0161ir\u0161\u00ed ochranu ne\u017e MCB, ale spr\u00e1vn\u00e1 volba z\u00e1vis\u00ed na c\u00edli ochrany, n\u00e1vrhu obvodu a po\u017eadavc\u00edch instalace.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Comparison photo of MCB, MCCB, RCD, RCCB, and RCBO electrical protection devices. If you are trying to understand the difference between MCB, MCCB, RCB, RCD, RCCB, and RCBO, the short answer is this: MCB and MCCB mainly protect against overload and short circuit RCD, RCCB, and RCB are mainly used for residual-current or earth-leakage protection [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":18344,"comment_status":"closed","ping_status":"open","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-18343","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\/18343","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=18343"}],"version-history":[{"count":2,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/18343\/revisions"}],"predecessor-version":[{"id":21685,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/18343\/revisions\/21685"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/18344"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=18343"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=18343"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=18343"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}