{"id":1351,"date":"2025-04-26T16:16:23","date_gmt":"2025-04-26T14:16:23","guid":{"rendered":"https:\/\/www.ab-smarthouse.com\/?post_type=product&#038;p=1351"},"modified":"2026-05-22T10:40:35","modified_gmt":"2026-05-22T08:40:35","slug":"openknx-led-dimmer-constant-current-unterputz-8-fach","status":"publish","type":"product","link":"https:\/\/www.ab-smarthouse.com\/en\/product\/openknx-led-dimmer-constant-current-unterputz-8-fach\/","title":{"rendered":"LED dimmer, constant current, flush-mounted, 8-way"},"content":{"rendered":"<p>Kit including accessories for a KNX-compatible 8-channel constant current LED dimmer for flush mounting.<\/p>\n<p>There are 8 channels, each with a maximum current of 2 A at a maximum voltage of 65 V DC. The constant current is set per channel via a sense resistor between 0 and 2,000 mA.<\/p>\n<p>The resistance per channel can be set for a desired current (<em>I mA<\/em>) using the formula <em>R m\u03a9 = 200,000 : I mA<\/em> be calculated. Important: The resistor must be rated for at least 400 mW and have an SMD size of 1206 or 1210.<\/p>\n<p>Suitable resistors for common currents can be ordered directly here. 1206 resistors with a 1 \u03a9 tolerance and a maximum of 500 mW are supplied. If ordered &quot;soldered,&quot; these SMD resistors will, of course, also be pre-soldered.<\/p>\n<p>Switching a power supply relay via an external switching actuator (such as\u00a0<a href=\"https:\/\/www.ab-smarthouse.com\/en\/product\/openknx-schaltaktor-8-fach-6-te\/\">Switching Actuator, 8-way, 6 TE<\/a>\u00a0or <a href=\"https:\/\/www.ab-smarthouse.com\/en\/product\/openknx-schaltaktor-6-fach-6-te-strommessung\/\">Switch actuator, 6-way, 6 HP, current measurement<\/a>) is possible. The input voltage can be measured to delay the dimming of the LEDs until the power supply is activated and sufficient voltage is present (= no flickering).<\/p>\n<p>In addition, four binary inputs and a relay (max. 10 A at 230 V AC) can be connected directly via an additional board.<\/p>\n<p>The optional housing (approx. 92\u00d764.5\u00d719 mm, fits through a 68 mm diameter hole) is printed as standard in an environmentally friendly &quot;PLA+&quot; material consisting largely of biological components (e.g., cornstarch). This material is dimensionally stable up to an ambient temperature of approximately 55 \u00b0C, which is generally sufficient. For consistently high currents on the channels or high ambient temperatures, printing in ABS plastic is also possible.<\/p>\n<p dir=\"auto\">If you have any questions or feedback about the project, please <a href=\"mailto:info@ab-smarthouse.com?subject=%5BOpenKNX%5D%20LED%20Dimmer\">make contact<\/a>!<\/p>\n<p dir=\"auto\"><strong>Please note:<\/strong><br \/>\nTo install the firmware of all KNX-compatible projects offered here in the shop, <a href=\"https:\/\/www.ab-smarthouse.com\/en\/product\/openknx-progger\/\">this programmer<\/a> needed.<\/p>\n<p dir=\"auto\"><strong dir=\"auto\">Delivery as a kit:<br \/>\n<\/strong>All KNX-compatible projects offered in the shop are supplied as kits and without software. Users are free to install their own software or software available from the OpenKNX &quot;Open Source&quot; directories. <a href=\"https:\/\/github.com\/OpenKNX\/\" target=\"_blank\" rel=\"noopener\">GitHub<\/a> In the latter case, this can be done with the <a href=\"https:\/\/github.com\/OpenKNX\/OpenKNX\/wiki\/Verwendung-der-OpenKNX-Toolbox\">OpenKNX Toolbox<\/a> easiest.<\/p>","protected":false},"excerpt":{"rendered":"<p>Compatible with OpenKNX.<\/p>","protected":false},"featured_media":1353,"template":"","meta":{"inline_featured_image":false,"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"off","neve_meta_content_width":100,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":""},"product_brand":[],"product_cat":[19],"product_tag":[],"class_list":["post-1351","product","type-product","status-publish","has-post-thumbnail","product_cat-unkategorisiert","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/product\/1351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/media\/1353"}],"wp:attachment":[{"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/media?parent=1351"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/product_brand?post=1351"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/product_cat?post=1351"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.ab-smarthouse.com\/en\/wp-json\/wp\/v2\/product_tag?post=1351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}