{"id":14320,"date":"2025-12-12T09:47:43","date_gmt":"2025-12-12T08:47:43","guid":{"rendered":"https:\/\/ventsystems.de\/produkt\/vs-ka-i\/"},"modified":"2026-10-24T18:30:12","modified_gmt":"2026-10-24T17:30:12","slug":"vs-ka-i","status":"publish","type":"product","link":"https:\/\/ventsystems.de\/en\/produkt\/vs-ka-i\/","title":{"rendered":"VS-KA-i smart chain drive"},"content":{"rendered":"<p><strong>In brief:<\/strong> The smart VS-KA-i chain actuator has a synchronisation function and a Modbus interface (24 V, A\/B). It delivers 250 to 1,500 N with a stroke of 100 to 1,400 mm and is suitable for top-hung sashes, fa\u00e7ade and roof windows, including with several actuators on one sash.<\/p>\n<h3>VS-KA-i smart chain drive at a glance<\/h3>\n<p>VS-KA-i smart chain drive: the ideal solution for standard applications in ventilation and facade systems. They combine a compact design with reliable performance and are perfectly suited for <a href=\"https:\/\/ventsystems.de\/en\/automated-roof-ventilation-in-building-construction\/\">Up- and down-hung windows as well as roof windows<\/a>. The actuators feature a synchronisation function, can be integrated into 24 V A\/B Modbus communication interfaces and impress with quiet, low-maintenance and durable operation. The entire VS-KA-i series offers flexible solutions for almost every requirement: push and pull forces from 250 N to 1,500 N and variable chain lengths from 100 mm to 1,400 mm (infinitely adjustable depending on the model) can be freely selected in the selection bar. For use in smoke ventilation systems, the actuator, the window and an approved smoke control panel must be matched to one another and verified for each project \u2013 we will be happy to advise you.<\/p>\n<p class=\"vs-lexikon-links\"><strong>Technical terms explained:<\/strong> <a href=\"\/en\/dictionary\/thrust\/\">Thrust<\/a> \u00b7 <a href=\"\/en\/dictionary\/stroke-length\/\">Stroke length<\/a> \u00b7 <a href=\"\/en\/dictionary\/ip-rating\/\">Protection class (IP)<\/a> \u00b7 <a href=\"\/en\/dictionary\/tandem-operation\/\">Tandem\/synchronous operation<\/a> \u00b7 <a href=\"\/en\/dictionary\/safety-stay\/\">safety stay<\/a> \u2013 more in the <a href=\"\/en\/dictionary\/\">Window actuator glossary<\/a>.<\/p>\n<p><strong>Replacement for chain drives with long stroke:<\/strong> The VS-KA-i is suitable as an alternative to drives such as the <a href=\"\/en\/geze-powerchain-alternative\/\">GEZE Powerchain<\/a>, the <a href=\"\/en\/geze-slimchain-alternative\/\">GEZE Slimchain<\/a> with stroke over 450 mm or the <a href=\"\/en\/aumueller-ks2-ks4-alternative\/\">Aum\u00fcller KS4<\/a>. All manufacturers: <a href=\"\/en\/replacing-window-drives\/\">Replacing window drives<\/a>.<\/p>\n<h2>Frequently asked questions<\/h2>\n<h3>What is the difference between the VS-KA-i and the VS-KA?<\/h3>\n<p>The VS-KA-i additionally has a synchronisation function and a Modbus interface (24 V, A\/B). This allows several actuators on one sash to run in sync, and the actuator can be integrated into control and bus systems.<\/p>\n<h3>What thrust and stroke does the VS-KA-i have?<\/h3>\n<p>The series delivers 250 to 1,500 N of push and pull force. You select the stroke length in the shop between 300 and 1,400 mm.<\/p>\n<h3>Is the VS-KA-i suitable for smoke ventilation systems?<\/h3>\n<p>For smoke ventilation, the actuator, window and an approved smoke control panel must be matched and verified for the specific project. We do not supply smoke control panels, but we are happy to advise you on sizing the actuator.<\/p>","protected":false},"excerpt":{"rendered":"<p>VS-KA-i smart chain drive with synchronization function and bus integration.<\/p>","protected":false},"featured_media":15841,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[101],"product_cat":[1134,1123],"product_tag":[],"class_list":["post-14320","product","type-product","status-publish","has-post-thumbnail","product_brand-vent-systems","product_cat-kettenantriebe","product_cat-sonderantriebe","pa_hublaenge-64","pa_hublaenge-65","pa_hublaenge-66","pa_hublaenge-55","pa_hublaenge-57","pa_hublaenge-59","pa_hublaenge-62","pa_hublaenge-68","pa_hublaenge-63","pa_hublaenge-69","pa_schubkraft-124","pa_schubkraft-122","pa_schubkraft-1194","pa_schubkraft-1210","pa_schubkraft-123","pa_schubkraft-121","first","instock","taxable","shipping-taxable","purchasable","product-type-variable","has-product-safety-information"],"acf":[],"_links":{"self":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product\/14320","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/comments?post=14320"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/media\/15841"}],"wp:attachment":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/media?parent=14320"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product_brand?post=14320"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product_cat?post=14320"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product_tag?post=14320"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}