{"id":17206,"date":"2026-10-29T09:18:49","date_gmt":"2026-10-29T08:18:49","guid":{"rendered":"https:\/\/ventsystems.de\/lexikon\/einschaltdauer\/"},"modified":"2026-10-29T09:18:49","modified_gmt":"2026-10-29T08:18:49","slug":"einschaltdauer","status":"publish","type":"page","link":"https:\/\/ventsystems.de\/en\/lexikon\/einschaltdauer\/","title":{"rendered":"Duty cycle (ED)"},"content":{"rendered":"<p class=\"wp-block-paragraph\">The <strong>Duty cycle (ED)<\/strong> states how long an electric motor may run within a certain period without overheating. For window actuators it is often given as a percentage in the data sheet, for example <strong>ED 30 %<\/strong>.<\/p>\n\n\n<h2 class=\"wp-block-heading\">What does ED 30 % mean?<\/h2>\n\n\n<p class=\"wp-block-paragraph\">Based on a period of 10 minutes, the actuator may run for about 3 minutes and must then pause for about 7 minutes. For occasionally opening and closing a window this is almost always sufficient in practice.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Why is there a limit?<\/h2>\n\n\n<ul class=\"wp-block-list\"><li>The motor heats up during operation<\/li><li>many actuators have overheating protection and switch off<\/li><li>controls often limit the running time too \u2013 the VS-C24-7A radio control, for example, allows a maximum of 5 minutes of continuous motor running<\/li><\/ul>\n\n\n<h2 class=\"wp-block-heading\">Frequently asked questions<\/h2>\n\n\n<h3 class=\"wp-block-heading\">Is the duty cycle a problem for ventilation?<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Rarely. A window is opened and closed a few times a day, each time for only seconds to a few minutes. It only becomes critical if a control moves the actuator back and forth constantly.<\/p>\n\n\n<h3 class=\"wp-block-heading\">What happens if it is exceeded?<\/h3>\n\n\n<p class=\"wp-block-paragraph\">Depending on the actuator, a thermal protection switches off until the motor has cooled down. Permanent overload shortens the service life.<\/p>\n\n\n<h2 class=\"wp-block-heading\">Read more<\/h2>\n\n\n<ul class=\"wp-block-list\"><li><a href=\"\/en\/dictionary\/end-position-cut-off\/\">Glossary: Limit switch-off<\/a><\/li><li><a href=\"\/en\/dictionary\/ventilation-control\/\">Glossary: Ventilation control<\/a><\/li><li><a href=\"\/en\/vs-c24-7a-wiring\/\">Instructions: Connecting the VS-C24-7A<\/a><\/li><\/ul>\n\n\n<p class=\"wp-block-paragraph\">Not sure which actuator fits? Call us at <a href=\"tel:+494050694631\">040 50694631<\/a> (Mon\u2013Fri 8 am\u20135 pm) or use the <a href=\"\/en\/drive-finder\/\">actuator finder<\/a>.<\/p>\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/en\/dictionary\/\">\u2190 Back to the glossary<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>How long a window actuator may run continuously before it needs to cool down.<\/p>","protected":false},"author":9,"featured_media":0,"parent":16230,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-17206","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/17206","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/comments?post=17206"}],"version-history":[{"count":0,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/17206\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/pages\/16230"}],"wp:attachment":[{"href":"https:\/\/ventsystems.de\/en\/wp-json\/wp\/v2\/media?parent=17206"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}