{"id":1353,"date":"2014-09-17T16:01:25","date_gmt":"2014-09-17T14:01:25","guid":{"rendered":"https:\/\/www.victronenergy.com\/blog\/?p=1353"},"modified":"2016-06-27T15:28:54","modified_gmt":"2016-06-27T13:28:54","slug":"hardware-improvement-in-multicompacts-fast-switch-back","status":"publish","type":"post","link":"https:\/\/www.victronenergy.com\/blog\/2014\/09\/17\/hardware-improvement-in-multicompacts-fast-switch-back\/","title":{"rendered":"MultiCompacts improved: faster switching to grid"},"content":{"rendered":"<p>The hardware in our MultiCompact inverter\/charger range has been improved: it can now switch much faster from inverter mode to mains mode. Combined with our high peak power ratings, this makes it possible to switch to mains mode before shutting down in an inverter overload alarm. This is especially useful in Self-consumption Hub-1 and 2 installations: it allows using an inverter\/charger with a nameplate power below\u00a0the system power.<\/p>\n<p><!--more--><\/p>\n<p>The old hardware will take approximately 8.5 seconds to switch from inverter- to charger-mode, the new hardware can do it within half a second. Some notes:<\/p>\n<ul>\n<li>single phase installations will be even faster than the half a second mentioned;<\/li>\n<li>fast switching is only possible in the 3xx firmware versions. The difference between 3xx on one hand, and 1xx and 2xx on the other hand is approximately another 0.5 second in the worst case scenario: slightly differing frequency, and inverter being 180 degrees out of sync with the grid;<\/li>\n<li>all larger models, 3kVA and upwards, already have fast-switching since a long time;<\/li>\n<li>do not forget the other limit to using an &#8216;undersized&#8217; Multi Compact in an installation: the AC transfer capacity. Max system load may never exceed the transfer switch capacity;<\/li>\n<li>the load-shedding functions in the self-consumption hub-1 and 2 Assistants give options to further undersize a Multi Compact: use an external relay which is controlled via the Auxiliary output;<\/li>\n<li>mentioned switching delays have not been measured exactly;<\/li>\n<li>for parallel and three-phase operation, please check the Disqus comments below.<\/li>\n<\/ul>\n<p>Lots of little details, but all together the conclusion is that this significantly reduces the chance of a Victron switching off in overload condition.<\/p>\n<h3>Availability<\/h3>\n<p>Because of stock and production logistics, it will be a while before all different models are shipping with the new hardware. Below table gives an overview of the current situation, from our main warehouse DSV in the Netherlands.<\/p>\n<p>The column serial shows from which serial number onwards this change has been implemented. And the column Shipping @ DSV shows if the new version is already being shipped from DSV.<\/p>\n<p>If you require a model that is not yet shipping as such from DSV, this is possible at an extra cost of EUR 50,= per unit.<\/p>\n<table class=\"adjusted\">\n<tbody>\n<tr>\n<th>Part nr.<\/th>\n<th>Part name<\/th>\n<th>Serial<\/th>\n<th>Shipping @ DSV<\/th>\n<\/tr>\n<tr>\n<td>CMP128010000<\/td>\n<td>MultiPlus C 12\/800\/35-16 230V Inverter\/Charger combi.<\/td>\n<td>HQ1428<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CMP121220000<\/td>\n<td>MultiPlus C 12\/1200\/50-16 230V Inverter\/Charger combi.<\/td>\n<td>HQ1420<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CMP121620000<\/td>\n<td>MultiPlus C 12\/1600\/70-16 230V Inverter\/Charger combi.<\/td>\n<td>HQ1422<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CMP122020000<\/td>\n<td>MultiPlus C 12\/2000\/80-30 \u2013 230V Inverter\/Charger combi.<\/td>\n<td>HQ1422<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CMP122020100<\/td>\n<td>MultiPlus C 12\/2000\/80-50 \u2013 120V Inverter\/Charger combi.<\/td>\n<td>HQ1423<\/td>\n<td>Not yet<\/td>\n<\/tr>\n<tr>\n<td>CMP248010000<\/td>\n<td>MultiPlus C 24\/800\/16-16 230V Inverter\/Charger combi.<\/td>\n<td>HQ1429<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CMP241220000<\/td>\n<td>MultiPlus C 24\/1200\/25-16 230V Inverter\/Charger combi.<\/td>\n<td>HQ1425<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CMP242020000<\/td>\n<td>MultiPlus C 24\/2000\/50-30 \u2013 230V Inverter\/Charger combi.<\/td>\n<td>HQ1424<\/td>\n<td>Not yet<\/td>\n<\/tr>\n<tr>\n<td>CMP242020100<\/td>\n<td>MultiPlus C 24\/2000\/50-50 \u2013 120V Inverter\/Charger combi.<\/td>\n<td>HQ1434<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CMP241620000<\/td>\n<td>MultiPlus C 24\/1600\/40-16 230V Inverter\/Charger combi.<\/td>\n<td>HQ1421<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CEP121621000<\/td>\n<td>EasySolar 12\/1600\/70-16 MPPT 100\/50 Inv.\/Solar Charg. combi<\/td>\n<td>HQ1420<\/td>\n<td>Yes<\/td>\n<\/tr>\n<tr>\n<td>CEP241621010<\/td>\n<td>EasySolar 24\/1600\/40-16 MPPT 100\/50 Inv.\/Solar-Charg. combi<\/td>\n<td>HQ1422<\/td>\n<td>Yes<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Table last updated 20 november 2014<\/p>\n<p>Matthijs Vader<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The hardware in our MultiCompact inverter\/charger range has been improved: it can now switch much faster from inverter mode to mains mode. Combined with our high peak power ratings, this makes it possible to switch to mains mode before shutting down in an inverter overload alarm. This is especially useful in Self-consumption Hub-1 and 2 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1368,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[125],"tags":[],"class_list":["post-1353","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-products"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>MultiCompacts improved: faster switching to grid - Victron Energy<\/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:\/\/www.victronenergy.com\/blog\/2014\/09\/17\/hardware-improvement-in-multicompacts-fast-switch-back\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"MultiCompacts improved: faster switching to grid - Victron Energy\" \/>\n<meta property=\"og:description\" content=\"The hardware in our MultiCompact inverter\/charger range has been improved: it can now switch much faster from inverter mode to mains mode. Combined with our high peak power ratings, this makes it possible to switch to mains mode before shutting down in an inverter overload alarm. 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Combined with our high peak power ratings, this makes it possible to switch to mains mode before shutting down in an inverter overload alarm. This is especially useful in Self-consumption Hub-1 and 2 [\u2026]","subtitle":null,"related_posts":[{"id":33057,"slug":"introducing-victron-microgrid","title":"Introducing Victron Microgrid","link":"https:\/\/www.victronenergy.com\/blog\/2026\/04\/13\/introducing-victron-microgrid\/","excerpt":"What if you could build large off-grid systems with the same simplicity as small ones - just by adding more independent units, increasing reliability, and scaling total capacity as you grow? Large off-grid systems have traditionally been complex to build and difficult to change; Victron Microgrid takes a different approach. 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It's the world's largest exhibition of Solar Energy, and takes place on May 11th, 12th or 13th at Messe M\u00fcnchen. 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