{"id":14310,"date":"2025-12-12T09:47:43","date_gmt":"2025-12-12T08:47:43","guid":{"rendered":"https:\/\/ventsystems.de\/produkt\/vs-cka-300-i\/"},"modified":"2026-10-29T16:48:46","modified_gmt":"2026-10-29T15:48:46","slug":"vs-ka-2500","status":"publish","type":"product","link":"https:\/\/ventsystems.de\/en\/produkt\/vs-ka-2500\/","title":{"rendered":"VS-KA 2500 heavy-duty chain drive"},"content":{"rendered":"

In brief:<\/strong> The VS-KA 2500 is a double chain actuator with 2,500 N push force, 24 V and IP66 protection. It opens very heavy and large window sashes, including outdoors, with strokes of 300, 400, 500 or 1,000 mm. It operates from -20 \u00b0C to +75 \u00b0C at 8 mm\/s.<\/p>\n

VS-KA 2500 powerful chain drive at a glance<\/h3>\n

VS-KA 2500 heavy-duty chain drive: one of the strongest \u2013 if not the strongest \u2013 chain drive in our range, designed specifically to open very heavy and large casement windows.<\/p>\n

As a waterproof double-chain drive (IP66) with a thrust force of 2500 N, the VS-KA 2500 easily copes with large and heavy glazing, where conventional chain drives are pushed to their limits. The two chains provide extra stability and a long service life, even under continuous load.<\/p>\n

The drive operates at 24 V with a running speed of 8 mm\/s and is designed for a temperature range of -20\u00b0C to +75\u00b0C. The stroke length is up to 1200 mm, available from us in lengths of 300, 400, 500, and 1000 mm. Other lengths are available on request.<\/p>\n

Thanks to its IP66 protection rating, the VS-KA 2500 is also suitable for outdoor use and demanding applications. Smoke and heat exhaust systems (SHEVS)<\/a>, wherever high forces, weather protection and a long service life are required.<\/p>\n

Matching accessories<\/h2>\n

For 24 V operation you need a control unit, for example the VS-C24-7A.<\/p>\n

\n\n\n\n\n\n\n\n\n\n
Accessories<\/th>\nUsed for<\/th>\nNet price<\/th>\n<\/tr>\n<\/thead>\n
VS-C24-7A controller<\/a><\/td>\nconverts 230 V into 24 V and drives up to 7 actuators<\/td>\n60,00 \u20ac<\/td>\n<\/tr>\n
radio remote control VS-C24-F-1<\/a><\/td>\nfor the VS-C24-7A control unit<\/td>\n14,00 \u20ac<\/td>\n<\/tr>\n
Rain sensor VS-RS<\/a><\/td>\ncloses the windows when it rains<\/td>\n33,00 \u20ac<\/td>\n<\/tr>\n
Wind-rain light sensor VS-WRLS<\/a><\/td>\nWind, rain and brightness<\/td>\n55,00 \u20ac<\/td>\n<\/tr>\n
On-board charger VS-AD C24<\/a><\/td>\nHousing for the control unit<\/td>\n8,00 \u20ac<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Frequently asked questions<\/h3>\n

Will the VS-KA 2500 fit my window?<\/h4>\n

That depends on the window type, sash weight, desired opening width and the space on the frame profile. Determine the required force with the Window actuator calculator<\/a>. If you are unsure, send us a photo of the window<\/a> \u2013 we will check free of charge whether the VS-KA 2500 fits.<\/p>\n

How strong is the VS-KA 2500?<\/h4>\n

The VS-KA 2500 is a double-chain actuator with 2,500 N push force. It is designed for very heavy and large window sashes where conventional chain actuators reach their limits.<\/p>\n

Which stroke lengths are available for the VS-KA 2500?<\/h4>\n

Available from stock are 300, 400, 500 and 1,000 mm stroke. Technically up to 1,200 mm is possible, other lengths on request.<\/p>\n

Is the VS-KA 2500 suitable for outdoor use?<\/h4>\n

Yes. With protection class IP66 and a temperature range of -20 \u00b0C to +75 \u00b0C, it is also suitable for outdoor use and for demanding SHEV systems.<\/p>\n

What voltage and speed does the VS-KA 2500 operate at?<\/h4>\n

The actuator operates at 24 V with a running speed of 8 mm\/s.<\/p>\n

Technical terms explained:<\/strong> thrust force<\/a> \u00b7 Stroke length<\/a> \u00b7 Protection class (IP)<\/a> \u2013 more in the Window actuator glossary<\/a>.<\/p>\n

Replacement for heavy sashes:<\/strong> The VS-KA 2500 is suitable as an alternative when a powerful chain drive such as the GEZE Powerchain<\/a> has to be replaced on a very heavy sash. All manufacturers: Replacing window drives<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"

VS-KA 2500 heavy-duty chain drive to open heavy sashes, 2500N, 24V<\/p>","protected":false},"featured_media":15850,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[101],"product_cat":[1134,1123],"product_tag":[1132],"class_list":["post-14310","product","type-product","status-publish","has-post-thumbnail","product_brand-vent-systems","product_cat-kettenantriebe","product_cat-sonderantriebe","product_tag-smartantriebe","pa_hublaenge-64","pa_hublaenge-55","pa_hublaenge-57","pa_hublaenge-59","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\/14310","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=14310"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/media\/15850"}],"wp:attachment":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/media?parent=14310"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product_brand?post=14310"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product_cat?post=14310"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/product_tag?post=14310"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}