The ABB SV\/S30.640.3.1 is a 640 mA power supply for KNX lines. Because it delivers full capacity, it feeds main lines and busy segments. As a guide, one 640 mA power supply powers up to roughly 64 bus devices. Therefore, consultants often specify it by default on larger projects.<\/p>\n
First, it converts mains power to the safe SELV voltage that KNX needs. In addition, it includes an integrated choke, so you do not need a separate one. It also protects the line against short circuits and overloads. As a result, the bus keeps running, even when a fault appears downstream.<\/p>\n
For commercial floors, hotel corridors and villa main lines, this supply is the safe choice. However, when a line is small, the 320 mA model is enough and costs less. Because both units share the same design, you can mix them freely across a building. Meanwhile, the compact DIN-rail housing keeps the panel tidy.<\/p>\n
The unit mounts on a standard DIN-rail. Next, you connect mains power and the KNX bus. Front LEDs then show the line status at a glance. Finally, you commission the line in ETS<\/a>. It works alongside the wider ABB i-bus KNX range<\/a>.<\/p>\n Good planning starts with the device count. So, count the sensors, actuators and displays on the line first. Then, add a margin for future additions. Next, compare that total against the 64-device guide. If the number is high, choose the 640 mA power supply for headroom. If it is low, the 320 mA unit will do. In short, size the supply to the line, not the other way round.<\/p>\n Infinitex supplies ABB KNX products in the UAE, and we offer project pricing with ETS support.<\/p>","protected":false},"excerpt":{"rendered":" \u0645\u0632\u0648\u0651\u062f \u0637\u0627\u0642\u0629 KNX \u0645\u0646 ABB \u0628\u0633\u0639\u0629 \u0643\u0627\u0645\u0644\u0629 640 \u0645\u0644\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0644\u0644\u062e\u0637\u0648\u0637 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0648\u0627\u0644\u0623\u0642\u0633\u0627\u0645 \u0627\u0644\u0645\u0632\u062f\u062d\u0645\u0629 \u2014 \u0627\u0644\u062e\u064a\u0627\u0631 \u0627\u0644\u0627\u0641\u062a\u0631\u0627\u0636\u064a \u0644\u0644\u0627\u0633\u062a\u0634\u0627\u0631\u064a\u064a\u0646 \u062d\u064a\u0646 \u064a\u0643\u0648\u0646 \u0639\u062f\u062f \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0643\u0628\u064a\u0631\u0627\u064b \u0623\u0648 \u0645\u062a\u0632\u0627\u064a\u062f\u0627\u064b.<\/p>","protected":false},"featured_media":4987,"comment_status":"open","ping_status":"closed","template":"","meta":{"_yoast_wpseo_title":"ABB Power Supply 640mA | SV\/S30.640.3.1 | Infinitex UAE","_yoast_wpseo_metadesc":"ABB 640 mA power supply for KNX (SV\/S30.640.3.1): regulated SELV output with integrated choke for main lines up to ~64 devices. UAE stock."},"product_brand":[431],"product_cat":[356],"product_tag":[462,463,467],"product_family":[521],"class_list":["post-3257","product","type-product","status-publish","has-post-thumbnail","product_brand-abb","product_cat-knx-power-supplies","product_tag-abb","product_tag-knx-power-supply","product_tag-knx-system-components","pa_brand-abb","first","instock","downloadable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/product\/3257","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/comments?post=3257"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/media\/4987"}],"wp:attachment":[{"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/media?parent=3257"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/product_brand?post=3257"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/product_cat?post=3257"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/product_tag?post=3257"},{"taxonomy":"product_family","embeddable":true,"href":"https:\/\/infinitexco.com\/ar\/wp-json\/wp\/v2\/product_family?post=3257"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Planning the line load<\/h3>\n
Technical specifications at a glance<\/h3>\n
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