{"id":1149,"date":"2026-09-20T00:16:29","date_gmt":"2026-09-20T00:16:29","guid":{"rendered":"https:\/\/ritoks.com\/?p=1149"},"modified":"2026-10-04T06:58:19","modified_gmt":"2026-10-04T06:58:19","slug":"solid-state-relay-selection-guide","status":"publish","type":"post","link":"https:\/\/ritoks.com\/cs\/solid-state-relay-selection-guide\/","title":{"rendered":"Pr\u016fvodce v\u00fdb\u011brem polovodi\u010dov\u00fdch rel\u00e9: z\u00e1t\u011b\u017e, \u0159\u00eddic\u00ed vstup a tepeln\u00e9 proveden\u00ed"},"content":{"rendered":"

V\u00fdb\u011br polovodi\u010dov\u00e9ho rel\u00e9 se odv\u00edj\u00ed od z\u00e1t\u011b\u017ee a provozn\u00edho re\u017eimu, nikoli od jedn\u00e9 hodnoty jmenovit\u00e9ho proudu. Na konkr\u00e9tn\u00ed volbu maj\u00ed vliv v\u00fdstupn\u00ed architektura, nap\u011bt\u00ed z\u00e1t\u011b\u017ee, ust\u00e1len\u00fd a zap\u00ednac\u00ed proud, \u0159\u00eddic\u00ed vstup, sp\u00ednac\u00ed re\u017eim, izolace, okoln\u00ed podm\u00ednky, zp\u016fsob mont\u00e1\u017ee a tepeln\u00e9 parametry.<\/p>\n\n\n\n

Tato p\u0159\u00edru\u010dka popisuje postup p\u0159i v\u00fdb\u011bru dodavatele a vypracov\u00e1n\u00ed popt\u00e1vky. Nezab\u00fdv\u00e1 se v\u00fdpo\u010dtem chladi\u010de, neuv\u00e1d\u00ed univerz\u00e1ln\u00ed koeficient sn\u00ed\u017een\u00ed v\u00fdkonu, neprov\u00e1d\u00ed v\u00fdb\u011br ochrann\u00fdch prvk\u016f ani neposkytuje pokyny k zapojen\u00ed p\u0159i instalaci.<\/p>\n\n\n\n

\"XSSR-DA2403P2
Polovodi\u010dov\u00e9 rel\u00e9 XSSR-P2 pro st\u0159\u00eddav\u00e9 nap\u011bt\u00ed ur\u010den\u00e9 k mont\u00e1\u017ei na desku plo\u0161n\u00fdch spoj\u016f je zde uvedeno jako p\u0159\u00edklad produktu z dan\u00e9 \u0159ady. Ov\u011b\u0159te si vybran\u00fd model podle jeho technick\u00e9ho listu.<\/figcaption><\/figure>\n\n\n\n

P\u0159ehled v\u00fdb\u011bru polovodi\u010dov\u00fdch rel\u00e9<\/h2>\n\n\n\n

Technick\u00e9 pokyny spole\u010dnosti OMRON rozli\u0161uj\u00ed typ z\u00e1t\u011b\u017ee SSR, v\u00fdstupn\u00ed prvek, vstupn\u00ed obvod, sp\u00ednac\u00ed chov\u00e1n\u00ed a odvod tepla. Tyto obecn\u00e9 vztahy slou\u017e\u00ed jako podklad pro n\u00ed\u017ee uveden\u00fd postup v\u00fdb\u011bru; technick\u00e9 parametry produkt\u016f OMRON nejsou \u00fadaji o produktech RITOKS.<\/p>\n\n\n\n

Zad\u00e1n\u00ed v\u00fdb\u011bru<\/th>Co je t\u0159eba definovat nebo ov\u011b\u0159it<\/th><\/tr><\/thead>
Typ n\u00e1kladu<\/td>Rezistivn\u00ed, induk\u010dn\u00ed, motorov\u00e9, sv\u011bteln\u00e9, transform\u00e1torov\u00e9 nebo jin\u00e9 zdokumentovan\u00e9 chov\u00e1n\u00ed z\u00e1t\u011b\u017ee.<\/td><\/tr>\n
V\u00fdstupn\u00ed architektura<\/td>V\u00fdstup st\u0159\u00eddav\u00e9ho nebo stejnosm\u011brn\u00e9ho proudu, v\u00fdstupn\u00ed prvek a po\u010det \u0159\u00edzen\u00fdch f\u00e1z\u00ed.<\/td><\/tr>\n
Zat\u011b\u017eovac\u00ed nap\u011bt\u00ed\/proud<\/td>Provozn\u00ed rozsah, st\u00e1l\u00fd proud, minim\u00e1ln\u00ed z\u00e1t\u011b\u017e a indikace sp\u00ednac\u00edho proudu nebo p\u0159ep\u011bt\u00ed.<\/td><\/tr>\n
\u0158\u00eddic\u00ed vstup<\/td>Po\u017eadavky na \u0159\u00eddic\u00ed nap\u011bt\u00ed\/proud a rozhran\u00ed.<\/td><\/tr>\n
Re\u017eim p\u0159ep\u00edn\u00e1n\u00ed<\/td>Sp\u00edn\u00e1n\u00ed v bod\u011b nulov\u00e9ho pr\u016fchodu nebo n\u00e1hodn\u00e9 sp\u00edn\u00e1n\u00ed, pokud je to zdokumentov\u00e1no a vhodn\u00e9 pro danou aplikaci.<\/td><\/tr>\n
Tepeln\u00e9 dimenzov\u00e1n\u00ed<\/td>Okoln\u00ed teplota, zp\u016fsob mont\u00e1\u017ee, rozestupy, k\u0159ivka sn\u00ed\u017een\u00ed v\u00fdkonu a cesta odvodu tepla.<\/td><\/tr>\n
Ochrana<\/td>Podrobn\u00e1 dokumentace k ochran\u011b proti zkratu, p\u0159ep\u011bt\u00ed a poruch\u00e1m v z\u00e1t\u011b\u017ei.<\/td><\/tr>\n
Dokumentace<\/td>Technick\u00fd list, k\u00f3d modelu, v\u00fdkres, informace o p\u0159ipojen\u00ed a po\u017eadovan\u00e9 certifik\u00e1ty.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\"Postup
Tento pracovn\u00ed postup pou\u017eijte ke shrom\u00e1\u017ed\u011bn\u00ed vstupn\u00edch \u00fadaj\u016f pro v\u00fdb\u011br SSR. Nejedn\u00e1 se o kalkul\u00e1tor pro dimenzov\u00e1n\u00ed; ka\u017ed\u00e9 rozhodnut\u00ed t\u00fdkaj\u00edc\u00ed se proudu a tepeln\u00e9ho zat\u00ed\u017een\u00ed je nutn\u00e9 ov\u011b\u0159it podle p\u0159esn\u00e9ho technick\u00e9ho listu.<\/figcaption><\/figure>\n\n\n\n

1. Za\u010dn\u011bte s zat\u00ed\u017een\u00edm a provozn\u00edm re\u017eimem<\/h2>\n\n\n\n

R\u016fzn\u00e9 z\u00e1t\u011b\u017ee mohou vykazovat odli\u0161n\u00e9 chov\u00e1n\u00ed p\u0159i spou\u0161t\u011bn\u00ed nebo sp\u00edn\u00e1n\u00ed. Zaznamenejte typ z\u00e1t\u011b\u017ee, provozn\u00ed nap\u011bt\u00ed, ust\u00e1len\u00fd proud, p\u0159edpokl\u00e1dan\u00e9 chov\u00e1n\u00ed p\u0159i zapnut\u00ed nebo p\u0159i proudov\u00fdch \u0161pi\u010dk\u00e1ch, sp\u00ednac\u00ed frekvenci a pracovn\u00ed cyklus. Nepou\u017e\u00edvejte na v\u0161echny z\u00e1t\u011b\u017ee stejn\u00fd obecn\u00fd koeficient nebo proudovou rezervu.<\/p>\n\n\n\n

Technick\u00fd list SSR mus\u00ed p\u0159esn\u011b zahrnovat zat\u00ed\u017een\u00ed a provozn\u00ed re\u017eim. Pokud nen\u00ed chov\u00e1n\u00ed zat\u00ed\u017een\u00ed jist\u00e9, po\u017e\u00e1dejte o posouzen\u00ed aplikace, m\u00edsto abyste volili pouze na z\u00e1klad\u011b ust\u00e1len\u00e9ho proudu.<\/p>\n\n\n\n

2. Ov\u011b\u0159te v\u00fdstupn\u00ed architekturu a jmenovit\u00e9 zat\u00ed\u017een\u00ed<\/h2>\n\n\n\n

Nejprve rozli\u0161ujte mezi SSR s v\u00fdstupem st\u0159\u00eddav\u00e9ho proudu a SSR s v\u00fdstupem stejnosm\u011brn\u00e9ho proudu. Pot\u00e9 u konkr\u00e9tn\u00edho modelu ov\u011b\u0159te \u00fadaje o v\u00fdstupn\u00edm prvku, rozsahu nap\u011bt\u00ed z\u00e1t\u011b\u017ee, rozsahu proudu z\u00e1t\u011b\u017ee, minim\u00e1ln\u00ed z\u00e1t\u011b\u017ei a odolnosti proti p\u0159ep\u011bt\u00ed. SSR pro st\u0159\u00eddav\u00fd proud ur\u010den\u00fd k mont\u00e1\u017ei na desku plo\u0161n\u00fdch spoj\u016f nelze pova\u017eovat za ekvivalent SSR pro stejnosm\u011brn\u00fd proud nebo t\u0159\u00edf\u00e1zov\u00e9ho SSR ur\u010den\u00e9ho k mont\u00e1\u017ei do rozvad\u011b\u010de.<\/p>\n\n\n\n

Zve\u0159ejn\u011bn\u00e9 XSSR-P2 \u2013 polovodi\u010dov\u00e9 rel\u00e9 st\u0159\u00eddav\u00e9ho proudu pro mont\u00e1\u017e na desku plo\u0161n\u00fdch spoj\u016f<\/a> je konkr\u00e9tn\u00edm p\u0159\u00edkladem: uv\u00e1d\u00ed modely s v\u00fdstupem st\u0159\u00eddav\u00e9ho proudu, nap\u011bt\u00edm na z\u00e1t\u011b\u017ei 24\u2013240 V st\u0159\u00eddav\u00e9ho proudu a maxim\u00e1ln\u00edm z\u00e1t\u011b\u017eov\u00fdm proudem 2 A nebo 3 A. Tyto hodnoty nep\u0159edstavuj\u00ed obecn\u00e1 pravidla pro v\u00fdb\u011br SSR.<\/p>\n\n\n\n

3. Sladit \u0159\u00eddic\u00ed vstup s po\u017eadavky na izolaci<\/h2>\n\n\n\n

\u0158\u00eddic\u00ed jednotka mus\u00ed dod\u00e1vat vstupn\u00ed nap\u011bt\u00ed a proud po\u017eadovan\u00e9 konkr\u00e9tn\u00edm SSR. Ov\u011b\u0159te rozhran\u00ed, p\u0159\u00edpadn\u011b polaritu vstupu a po\u017eadovan\u00fd doklad o izolaci. Nep\u0159edpokl\u00e1dejte, \u017ee ka\u017ed\u00e9 jmenovit\u00e9 \u0159\u00eddic\u00ed nap\u011bt\u00ed je k dispozici u ka\u017ed\u00e9ho v\u00fdstupn\u00edho modelu.<\/p>\n\n\n\n

XSSR-P2 podporuje mo\u017enosti \u0159\u00edzen\u00ed nap\u011bt\u00edm 5 V, 12 V a 24 V DC s \u0159\u00eddic\u00edm proudem 6\u201330 mA a optoelektronickou izolac\u00ed. Kompletn\u00ed p\u0159ehled model\u016f je i nad\u00e1le k dispozici v p\u0159\u00edslu\u0161n\u00e9 objedn\u00e1vac\u00ed dokumentaci.<\/p>\n\n\n\n

4. Ov\u011b\u0159en\u00ed pr\u016fchodu nulou nebo n\u00e1hodn\u00e9ho sp\u00edn\u00e1n\u00ed<\/h2>\n\n\n\n

U rel\u00e9 SSR s v\u00fdstupem st\u0159\u00eddav\u00e9ho proudu popisuj\u00ed sp\u00edn\u00e1n\u00ed v bod\u011b nulov\u00e9ho p\u0159echodu a n\u00e1hodn\u00e9 sp\u00edn\u00e1n\u00ed odli\u0161n\u00e9 chov\u00e1n\u00ed p\u0159i zap\u00edn\u00e1n\u00ed. Spole\u010dnost OMRON vysv\u011btluje, \u017ee funkce sp\u00edn\u00e1n\u00ed v bod\u011b nulov\u00e9ho p\u0159echodu zap\u00edn\u00e1 rel\u00e9 v bl\u00edzkosti bodu nulov\u00e9ho p\u0159echodu st\u0159\u00eddav\u00e9ho nap\u011bt\u00ed a u vhodn\u00fdch z\u00e1t\u011b\u017e\u00ed m\u016f\u017ee sn\u00ed\u017eit sp\u00ednac\u00ed \u0161um. N\u00e1hodn\u00e9 sp\u00edn\u00e1n\u00ed m\u016f\u017ee b\u00fdt vy\u017eadov\u00e1no pro r\u016fzn\u00e9 metody \u0159\u00edzen\u00ed. \u017d\u00e1dn\u00e1 z t\u011bchto metod nen\u00ed obecn\u011b lep\u0161\u00ed ne\u017e ta druh\u00e1.<\/p>\n\n\n\n

XSSR-P2 uv\u00e1d\u00ed re\u017eimy spou\u0161t\u011bn\u00ed p\u0159i pr\u016fchodu nulou nebo n\u00e1hodn\u00e9ho spou\u0161t\u011bn\u00ed jako z\u00e1visl\u00e9 na modelu. Uve\u010fte konkr\u00e9tn\u00ed pou\u017eit\u00ed a po\u017eadovan\u00fd zp\u016fsob ovl\u00e1d\u00e1n\u00ed a pot\u00e9 up\u0159esn\u011bte p\u0159esnou p\u0159\u00edponu nebo model.<\/p>\n\n\n\n

5. Pova\u017eujte tepeln\u00e9 dimenzov\u00e1n\u00ed za specifick\u00e9 pro dan\u00fd model<\/h2>\n\n\n\n

Polovodi\u010dov\u00e9 v\u00fdstupn\u00ed stupn\u011b p\u0159i pr\u016fchodu z\u00e1t\u011b\u017eov\u00e9ho proudu generuj\u00ed teplo. P\u0159\u00edpustn\u00fd proud z\u00e1vis\u00ed na konkr\u00e9tn\u00edm proveden\u00ed pouzdra, zp\u016fsobu mont\u00e1\u017ee, teplot\u011b okol\u00ed, rozestupech a zdokumentovan\u00e9 trase odvodu tepla. Samotn\u00fd jmenovit\u00fd proud uveden\u00fd na typov\u00e9m \u0161t\u00edtku nep\u0159edstavuje tepeln\u00fd n\u00e1vrh.<\/p>\n\n\n\n

\u0158i\u010fte se p\u0159esn\u011b k\u0159ivkou sn\u00ed\u017een\u00ed v\u00fdkonu a mont\u00e1\u017en\u00edmi pokyny v\u00fdrobce. Tento \u010dl\u00e1nek neobsahuje \u017e\u00e1dn\u00e9 \u00fadaje t\u00fdkaj\u00edc\u00ed se chladi\u010de, tepeln\u00e9ho odporu, sn\u00ed\u017een\u00ed proudu ani mezn\u00ed teploty sk\u0159\u00edn\u011b pro model XSSR-P2 ani pro \u017e\u00e1dn\u00fd jin\u00fd SSR.<\/p>\n\n\n\n

\"Koncep\u010dn\u00ed
Jedn\u00e1 se pouze o schematickou ilustraci. Nejedn\u00e1 se o tepeln\u00fd v\u00fdpo\u010det ani o mont\u00e1\u017en\u00ed pokyny pro konkr\u00e9tn\u00ed model; \u0159i\u010fte se p\u0159esnou dokumentac\u00ed t\u00fdkaj\u00edc\u00ed se sn\u00ed\u017een\u00ed jmenovit\u00e9ho v\u00fdkonu a instalace.<\/figcaption><\/figure>\n\n\n\n

6. Ov\u011b\u0159en\u00ed ochrany a chov\u00e1n\u00ed v p\u0159\u00edpad\u011b selh\u00e1n\u00ed<\/h2>\n\n\n\n

V\u00fdstupn\u00ed prvky SSR mohou b\u00fdt po\u0161kozeny poruchami z\u00e1t\u011b\u017ee, vn\u011bj\u0161\u00edmi p\u0159ep\u011bt\u00edmi, nadm\u011brn\u00fdm zap\u00ednac\u00edm proudem nebo p\u0159eh\u0159\u00e1t\u00edm. Po\u017eadovan\u00e9 pojistky, jisti\u010de, p\u0159ep\u011b\u0165ov\u00e9 ochrany nebo bezpe\u010dnostn\u00ed obvody mus\u00ed b\u00fdt uvedeny v dokumentaci konkr\u00e9tn\u00edho SSR a dan\u00e9 aplikace.<\/p>\n\n\n\n

Souvisej\u00edc\u00ed Polovodi\u010dov\u00e1 pojistka RS95 aR<\/a> jedn\u00e1 se o samostatnou produktovou \u0159adu. Skute\u010dnost, \u017ee je za\u0159azena do stejn\u00e9ho klastru v\u00fdkonov\u00e9 elektroniky, je\u0161t\u011b neznamen\u00e1, \u017ee je kompatibiln\u00ed s XSSR-P2.<\/p>\n\n\n\n

7. Rozli\u0161ujte mezi v\u00fdb\u011brem SSR a styka\u010de<\/h2>\n\n\n\n

SSR vyu\u017e\u00edv\u00e1 polovodi\u010dov\u00e9 sp\u00edn\u00e1n\u00ed a z hlediska \u00fanikov\u00e9ho proudu, tepeln\u00e9ho chov\u00e1n\u00ed a poruch se li\u0161\u00ed od elektromechanick\u00e9ho styka\u010de. Styka\u010d vyu\u017e\u00edv\u00e1 c\u00edvku a mechanick\u00e9 kontakty a vykazuje odli\u0161n\u00e9 parametry pracovn\u00edho cyklu a \u017eivotnosti. Tento Pr\u016fvodce v\u00fdb\u011brem st\u0159\u00edda\u010d\u016f st\u0159\u00eddav\u00e9ho proudu<\/a> by se m\u011blo pou\u017e\u00edt v p\u0159\u00edpad\u011b, \u017ee se uva\u017euje o t\u00e9to architektu\u0159e.<\/p>\n\n\n\n

St\u00e1vaj\u00edc\u00ed Pr\u016fvodce v\u00fdb\u011brem tyristorov\u00fdch modul\u016f SCR<\/a> zahrnuje tak\u00e9 odli\u0161nou formu produktu. Nezahrnujte samostatn\u00fd v\u00fdkonov\u00fd modul a hotov\u00fd SSR do stejn\u00e9ho v\u00fdb\u011brov\u00e9ho objektu.<\/p>\n\n\n\n

Zve\u0159ejn\u011bn\u00fd p\u0159\u00edklad RITOKS XSSR-P2<\/h2>\n\n\n\n
Zve\u0159ejn\u011bn\u00e9 pole<\/th>D\u016fkazy XSSR-P2<\/th>Vyu\u017eit\u00ed v\u00fdb\u011bru<\/th><\/tr><\/thead>
Modely<\/td>XSSR-2402P2 \/ XSSR-2403P2<\/td>Ujist\u011bte se, o jak\u00fd model p\u0159esn\u011b jde.<\/td><\/tr>\n
V\u00fdstup<\/td>AC, obousm\u011brn\u00fd tyristor, norm\u00e1ln\u011b otev\u0159en\u00fd<\/td>Nepou\u017e\u00edvejte u SSR s v\u00fdstupem na stejnosm\u011brn\u00e9 nap\u011bt\u00ed.<\/td><\/tr>\n
Nap\u011bt\u00ed z\u00e1t\u011b\u017ee<\/td>24\u2013240 V st\u0159\u00eddav\u00e9ho proudu<\/td>Dodr\u017eujte uveden\u00fd rozsah st\u0159\u00eddav\u00e9ho proudu.<\/td><\/tr>\n
Maxim\u00e1ln\u00ed zat\u011b\u017eovac\u00ed proud<\/td>2A \/ 3A podle modelu<\/td>Nepou\u017e\u00edvejte bez prov\u011b\u0159en\u00ed teplotn\u00edch a zat\u011b\u017eovac\u00edch parametr\u016f.<\/td><\/tr>\n
Minim\u00e1ln\u00ed zat\u011b\u017eovac\u00ed proud<\/td>0.03A<\/td>Dr\u017ete se p\u0159esn\u011b t\u00e9to rodiny.<\/td><\/tr>\n
Mo\u017enosti ovl\u00e1d\u00e1n\u00ed<\/td>5 \/ 12 \/ 24 V DC; 6\u201330 mA<\/td>Ov\u011b\u0159te p\u0159esnou verzi vstupu.<\/td><\/tr>\n
Re\u017eim spou\u0161t\u011b<\/td>P\u0159i pr\u016fchodu nulou nebo n\u00e1hodn\u011b, v z\u00e1vislosti na modelu<\/td>Ov\u011b\u0159te po\u017eadovanou koncovku modelu.<\/td><\/tr>\n
Mont\u00e1\u017e<\/td>Dvou\u0159ad\u00fd pr\u016fchoz\u00ed spojovac\u00ed prvek pro desky plo\u0161n\u00fdch spoj\u016f<\/td>Toto nen\u00ed p\u0159\u00edklad SSR ur\u010den\u00e9ho k mont\u00e1\u017ei do panelu.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

Prohl\u00e9dn\u011bte si Polovodi\u010dov\u00e1 rel\u00e9<\/a> kategorie pro aktu\u00e1ln\u011b zve\u0159ejn\u011bnou rodinu.<\/p>\n\n\n\n

Informace, kter\u00e9 je t\u0159eba uv\u00e9st v \u017e\u00e1dosti o nab\u00eddku (RFQ) v r\u00e1mci SSR<\/h2>\n\n\n\n