{"id":17030,"date":"2025-03-20T14:00:00","date_gmt":"2025-03-20T13:00:00","guid":{"rendered":"https:\/\/rdcomponents.com\/site\/?p=17030"},"modified":"2026-06-03T11:04:48","modified_gmt":"2026-06-03T09:04:48","slug":"166-alta-portata-e-riarmo-elettrico","status":"publish","type":"post","link":"https:\/\/rdcomponents.com\/site\/2025\/03\/20\/166-alta-portata-e-riarmo-elettrico\/","title":{"rendered":"#166 Alta portata e riarmo elettrico"},"content":{"rendered":"\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\"><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">I dispositivi di sicurezza termica possono essere di diversi tipi. Dai semplici ma estremamente efficaci\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/termofusibili\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>termofusibili<\/strong><\/a><strong>\u00a0<\/strong>(<a href=\"https:\/\/rdcomponents.com\/site\/2021\/11\/04\/10-come-funzionano-i-termofusibili\/\" target=\"_blank\" rel=\"noreferrer noopener\">Articolo 1<\/a><a href=\"https:\/\/74lch.r.ag.d.sendibm3.com\/mk\/cl\/f\/sh\/OycZvHuFo1qWJdERDNuPAr7k\/1a2V18iieZ8g\" target=\"_blank\" rel=\"noreferrer noopener\">0<\/a>\u00a0e\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/2022\/01\/13\/18-termofusibile-cosa-puo-succedere-se-th-e-troppo-vicino-a-tf\/\" target=\"_blank\" rel=\"noreferrer noopener\">18<\/a>), ai\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/termostati-bimetallici\/#tk32\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>termostati bimetallici a riarmo manuale<\/strong><\/a>\u00a0(<a href=\"https:\/\/rdcomponents.com\/site\/2022\/04\/21\/32-termostati-a-riarmo-manuale\/\" target=\"_blank\" rel=\"noreferrer noopener\">Articolo 32<\/a>) fino ai pi\u00f9 complessi\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/termostati-bulbo-caldo\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>termostati a bulbo<\/strong><\/a>\u00a0sempre <a href=\"https:\/\/rdcomponents.com\/site\/2023\/10\/12\/99-le-assicurazioni-della-sicurezza\/\" target=\"_blank\" rel=\"noreferrer noopener\">con\u00a0<strong>riarmo manuale<\/strong><\/a>. Oppure agli ambiziosi\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/termostati-bimetallici\/#tk32os\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>TK24OS<\/strong><\/a><strong>\u00a0<\/strong>(<a href=\"https:\/\/rdcomponents.com\/site\/2023\/05\/25\/83-un-termofusibile-a-425c\/\" target=\"_blank\" rel=\"noreferrer noopener\">Articolo 83<\/a>), che hanno un reset (<a href=\"https:\/\/rdcomponents.com\/site\/2022\/10\/20\/54-differenziale-e-ripristino\/\" target=\"_blank\" rel=\"noreferrer noopener\">Articolo 54<\/a>\u00a0e\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/2022\/10\/27\/55-ripristino-e-temperatura-ambiente\/\" target=\"_blank\" rel=\"noreferrer noopener\">55<\/a>) cos\u00ec lungo da essere considerati termostati mono intervento (<strong>one shot<\/strong>). Ma esistono anche\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/protettori-termici\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>protettori termici<\/strong><\/a>\u00a0che possono agire come dispositivi di sicurezza grazie alla possibilit\u00e0 di averli nell\u2019esecuzione con\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/riarmo-elettrico\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>riarmo elettrico<\/strong><\/a>\u00a0(<a href=\"https:\/\/rdcomponents.com\/site\/2022\/04\/07\/30-protettori-termici-a-riarmo-elettrico\/\" target=\"_blank\" rel=\"noreferrer noopener\">Articolo 30<\/a>). Non ultimi, nella gamma di\u00a0<strong>R&amp;D Components<\/strong>\u00a0esistono anche\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/termostati-bimetallici\/#arr03\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>termostati bimetallici con riarmo elettrico<\/strong><\/a>\u00a0(<a href=\"https:\/\/rdcomponents.com\/site\/2024\/10\/03\/144-termostato-bimetallico-con-ptc\/\" target=\"_blank\" rel=\"noreferrer noopener\">Articolo 144<\/a>), un prodotto molto raro che lavora a\u00a0<strong>6A<\/strong>,\u00a0<strong>230V\u00a0<\/strong>per\u00a0<strong>3000 cicli<\/strong>. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Ma se tali prestazioni non bastassero a soddisfare le esigenze di un particolare progetto?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Se state lavorando a un progetto che richiede una sicurezza elettrica ma anche una portata particolarmente elevata allora la soluzione pu\u00f2 arrivare da\u00a0<strong>TOMIC<\/strong>, il nostro fidato partner polacco. Oltre a produrre il sopracitato\u00a0<strong>ARR03<\/strong>, ha anche sviluppato un termostato bimetallico con disco da \u00be\u201d che trova la sua principale applicazione sul mercato americano. Pu\u00f2 lavorare a\u00a0<strong>16A\u00a0<\/strong>nella versione base e a\u00a0<strong>25A \u2013 240V<\/strong>\u00a0nella soluzione con portata maggiore del modello\u00a0<strong>ASR44G<\/strong>. Come dicevamo, in questo dispositivo \u00e8 inserito un resistore che ha il compito di mantenere aperti i contatti una volta raggiunta la temperatura d\u2019intervento. Questo \u00e8 il concetto del riarmo elettrico. Come sappiamo, l&#8217;unico modo per ripristinare il termostato \u00e8 quello di rimuovere l&#8217;alimentazione dal circuito scollegando la spina dalla presa. e lasciare il tempo sufficiente per consentire al bimetallo di raffreddarsi prima che il termostato si ripristini e i contatti tornino in una posizione normalmente chiusa.<\/p>\n\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"390\" height=\"319\" src=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2025\/03\/asr44.png\" alt=\"alta portata\" class=\"wp-image-17031\" style=\"width:500px\" srcset=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2025\/03\/asr44.png 390w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2025\/03\/asr44-300x245.png 300w, https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2025\/03\/asr44-122x100.png 122w\" sizes=\"auto, (max-width: 390px) 100vw, 390px\" \/><\/figure>\n<\/div>\n\n\n<div style=\"height:30px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Questa caratteristica di progettazione aggiunge ulteriore sicurezza rispetto a un dispositivo di ripristino automatico. Funziona in modo molto simile a un ripristino manuale, ma senza il pulsante e senza il problema dell&#8217;accesso remoto per ripristinare manualmente il dispositivo.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Sia il modello\u00a0<a href=\"https:\/\/rdcomponents.com\/site\/termostati-bimetallici\/#asr44\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>ASR44<\/strong><\/a>che la versione\u00a0<strong>ASR44G<\/strong>, sono omologati\u00a0<strong>UL\u00a0<\/strong>e testati secondo lo standard\u00a0<strong>UL 873<\/strong>. Inoltre possono lavorare entrambi a\u00a0<strong>115 Vac<\/strong>,\u00a0<strong>24 Vac\/CC<\/strong>,\u00a0<strong>48 Vac\/CC<\/strong>. La staffa di fissaggio, fissa, ha un interasse di 41,3 mm ed \u00e8 prodotta sia nella versione a contatto che a scalino. Ma esiste anche un\u2019esecuzione con interasse variabile, da un minimo di 33,2 mm a un massimo di 48,7 mm.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\" style=\"font-size:16px\">Molto vasto anche il settore di applicazione che va dalle caldaie, ai generatori di vapore e ai riscaldatori di grandi serbatoi e aria condizionata, riscaldamento, asciugatori, asciugamani. In sostanza, ovunque l\u2019industria richieda un controllo di temperatura, preciso, sicuro e capace di lavorare a portate elevate.<\/p>\n\n\n\n<div style=\"height:100px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n<\/div><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>I dispositivi di sicurezza termica possono essere di diversi tipi. Dai semplici ma estremamente efficaci\u00a0termofusibili\u00a0(Articolo 10\u00a0e\u00a018), ai\u00a0termostati bimetallici a riarmo manuale\u00a0(Articolo 32) fino ai pi\u00f9 complessi\u00a0termostati a bulbo\u00a0sempre con\u00a0riarmo manuale. Oppure agli ambiziosi\u00a0TK24OS\u00a0(Articolo 83), che hanno un reset (Articolo 54\u00a0e\u00a055) cos\u00ec lungo da essere considerati&#8230;<\/p>\n","protected":false},"author":2,"featured_media":11995,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[239,236],"tags":[1253,1255,116],"class_list":["post-17030","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-funzionamento-tecnico","category-prodotti","tag-alta-portata","tag-asr44","tag-termostati"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>#166 Alta portata e riarmo elettrico -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/rdcomponents.com\/site\/2025\/03\/20\/166-alta-portata-e-riarmo-elettrico\/\" \/>\n<meta property=\"og:locale\" content=\"it_IT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"#166 Alta portata e riarmo elettrico -\" \/>\n<meta property=\"og:description\" content=\"I dispositivi di sicurezza termica possono essere di diversi tipi. 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Oppure agli ambiziosi\u00a0TK24OS\u00a0(Articolo 83), che hanno un reset (Articolo 54\u00a0e\u00a055) cos\u00ec lungo da essere considerati...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/rdcomponents.com\/site\/2025\/03\/20\/166-alta-portata-e-riarmo-elettrico\/\" \/>\n<meta property=\"og:site_name\" content=\"R&amp;d Components Srl\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-20T13:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-03T09:04:48+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/rdcomponents.com\/site\/wp-content\/uploads\/2021\/09\/RD-Social-senza-contorno-e1717075823611.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"826\" \/>\n\t<meta property=\"og:image:height\" content=\"463\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Roberto Ferranti\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta 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