{"id":18833,"date":"2026-10-10T17:06:45","date_gmt":"2026-10-10T09:06:45","guid":{"rendered":"https:\/\/www.wehopower.com\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/"},"modified":"2026-10-10T17:06:45","modified_gmt":"2026-10-10T09:06:45","slug":"printing-press-power-supply-qualify-a-low-profile-24v-control-branch","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/","title":{"rendered":"Printing Press Power Supply: Qualify a Low-Profile 24V Control Branch"},"content":{"rendered":"<div class=\"quick-answer\"><strong>Quick answer:<\/strong> Select a printing press power supply from the documented auxiliary circuit, not the press&#8217;s motor rating. Confirm the actual control-device voltage, current profile, cable behavior and protected installation first. The WEHO LRS-35-24 is a documented 24 V \/ 1.5 A candidate for a suitable small control branch; its shallow enclosed chassis is screw-mounted, not a DIN-rail product or a complete press power system.<\/div>\n<p>Printing equipment may contain motor drives, heaters, curing units and several low-voltage branches. Adding their wattages together does not identify which circuit a compact supply should serve. Begin with the approved electrical drawing and device instructions, then choose the exact voltage variant and mechanical arrangement. A product photograph alone cannot establish the load requirements of a particular press.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/01-application-a-7.png?quality=85&strip=all\" alt=\"Printing Press Power Supply: Qualify a Low-Profile 24V Control Branch  title=\" width=\"1536\" height=\"1024\" printing press power supply: qualify low-profile 24v control branch title =\"\"><figcaption>Source-referenced sheetfed-press example: the LRS-35-24 is chassis-fixed against the vertical backplate of a separate dry electrical service bay, with the paper and printing mechanisms outside the partition. The depicted 24 V auxiliary branch is conditional, not a verified complete circuit or a machine-compatibility claim.<\/figcaption><\/figure>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">\u09b8\u09c2\u099a\u09bf\u09aa\u09a4\u09cd\u09b0<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">\u099f\u0997\u09b2 \u0995\u09b0\u09c1\u09a8<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Identify_the_control_branch_before_selecting_its_supply\" >Identify the control branch before selecting its supply<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Keep_the_exact_model_and_source_label_with_the_order\" >Keep the exact model and source label with the order<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Use_the_low-profile_chassis_without_inventing_its_mount\" >Use the low-profile chassis without inventing its mount<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Check_the_five_real_terminal_connections\" >Check the five real terminal connections<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Make_the_engineering_handover_traceable\" >Make the engineering handover traceable<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Frequently_asked_questions\" >Frequently asked questions<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Does_every_printing_press_use_a_24_V_control_supply\" >Does every printing press use a 24 V control supply?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Can_this_candidate_power_the_whole_press\" >Can this candidate power the whole press?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#Can_the_LRS-35-24_be_shown_on_a_DIN_rail\" >Can the LRS-35-24 be shown on a DIN rail?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.wehopower.com\/bn\/news\/printing-press-power-supply-qualify-a-low-profile-24v-control-branch\/#What_should_a_buyer_request_besides_a_model_name\" >What should a buyer request besides a model name?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Identify_the_control_branch_before_selecting_its_supply\"><\/span>Identify the control branch before selecting its supply<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Record the nominal voltage, permitted device-input range and polarity for every load assigned to the branch. A controller input, an interface module and an actuator may have different requirements even when they occupy the same cabinet. Do not infer voltage from equipment size or assume every printing device accepts 24 V.<\/p>\n<p>List steady current, startup events and simultaneous operating states. Leave press motors, drying, heating and print-head power on their documented power paths rather than quietly adding them to this small auxiliary example. If the actual branch needs another voltage or more current, select a separately qualified model instead of stretching this candidate&#8217;s identity.<\/p>\n<table>\n<thead>\n<tr>\n<th>Decision<\/th>\n<th>Evidence needed<\/th>\n<th>Why it matters<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Voltage assignment<\/td>\n<td>Actual device instructions and electrical drawing<\/td>\n<td>A familiar enclosure does not establish a compatible voltage.<\/td>\n<\/tr>\n<tr>\n<td>Operating demand<\/td>\n<td>Steady, startup and simultaneous load information<\/td>\n<td>A single nominal current does not describe every event.<\/td>\n<\/tr>\n<tr>\n<td>Device-terminal voltage<\/td>\n<td>Cable arrangement and representative measurements<\/td>\n<td>Supply-terminal voltage can differ from voltage at the load.<\/td>\n<\/tr>\n<tr>\n<td>Mechanical installation<\/td>\n<td>Exact drawing, fixing holes and cabinet layout<\/td>\n<td>A shallow chassis still needs real fastening and ventilation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Keep_the_exact_model_and_source_label_with_the_order\"><\/span>Keep the exact model and source label with the order<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The official <a href=\"https:\/\/www.wehopower.com\/bn\/product\/lrs-series-35w-ac-to-dc-single-output-switching-power-supply\/\">WEHO LRS-35 product page<\/a> and inspected specification identify the LRS-35-24 row as 24 V \/ 1.5 A. The original photograph carries that full model and its original direct-current graphic; the artwork and label are retained, not rewritten to fit an illustration. Keep the exact ordered variant, original photograph and approved drawing revision in the procurement file.<\/p>\n<p>The photographed nameplate marks AC input as 100\u2013240 VAC, 0.74 A, 50\/60 Hz. Treat that nominal marking separately from wider input ranges or other figures appearing in different family documents. The public table and current approved sheet contain revision differences, so this article does not combine them into extended-input, temperature, certification or efficiency promises. Obtain the instructions applicable to the supplied revision.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/03-product-detail-7.png?quality=85&strip=all\" alt=\"Printing Press Power Supply: Qualify a Low-Profile 24V Control Branch  title=\" width=\"1536\" height=\"1024\" printing press power supply: qualify low-profile 24v control branch title =\"\"><figcaption>Authentic near-frontal LRS-35-24 photograph. The original physical WEHO artwork, direct-current symbol, 24 V \/ 1.5 A output, input marking, five terminal positions and transparent guard remain unchanged.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Use_the_low-profile_chassis_without_inventing_its_mount\"><\/span>Use the low-profile chassis without inventing its mount<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The mechanical dimensions are 82 mm across the front terminal face, 99 mm front-to-rear and 30 mm high. These axes are important: a 30 mm profile does not make the supply a narrow upright DIN unit. Plan the fixing surface and service access around the complete enclosure, its terminal guard and the actual cable bends.<\/p>\n<p>The approved drawing documents two M3 bottom fixing points with screw penetration no greater than 3.0 mm, and two M3 side fixing points with penetration no greater than 5 mm. Use the applicable documented arrangement and the equipment builder&#8217;s mechanical design. Do not invent an adapter, add feet, hang the case from a rail or let it rest unsecured on a wiring duct. The illustrations do not expose the hidden fixing threads or prove that a depicted orientation is thermally approved for every operating condition. Installation must not obstruct the original mesh ventilation or make adjustment and terminal access impractical.<\/p>\n<p>A dry, protected electrical compartment separates this component from ink, cleaning liquid and moving printing mechanisms. A photograph of an open service bay illustrates the internal arrangement; it does not authorize exposed operation, establish an ingress rating or prove the complete machine&#8217;s electrical safety.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/02-application-b-7.png?quality=85&strip=all\" alt=\"Printing Press Power Supply: Qualify a Low-Profile 24V Control Branch  title=\" width=\"1536\" height=\"1024\" printing press power supply: qualify low-profile 24v control branch title =\"\"><figcaption>A different pad-printing underframe arrangement places the LRS-35-24 in the protected lower control compartment beneath the printing mechanism. Its bottom chassis plane is fixed against the machine backplate, not an integral DIN mount; the five real clamp connections lead into the cable ducts. The 24 V branch remains an illustrative conditional choice, not proof of a printer&#8217;s required load or a verified complete circuit.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Check_the_five_real_terminal_connections\"><\/span>Check the five real terminal connections<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The original left-to-right legends are L, N, protective earth, \u2212V and +V, with five screw-clamp positions under the transparent guard. Conductors enter the real clamp mouths below the screw heads, not the screwdriver slot, plastic shield, trim aperture or ventilation mesh. Keep the photographed order and the supplied instructions; a plausible-looking wire is not sufficient evidence of a correct connection.<\/p>\n<p>During qualification, compare the voltage at the supply with the voltage at the intended device under relevant operating states. Include cable length, connection quality and simultaneous events in the investigation. Do not claim a measured result, universal reserve percentage or completed commissioning from an application illustration.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Make_the_engineering_handover_traceable\"><\/span>Make the engineering handover traceable<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Provide the exact model and revision, required voltage and polarity, load information, cable arrangement, fixing design and protected compartment drawing. Resolve any discrepancy between the sample marking and requested variant before ordering. The objective is a controlled auxiliary branch, not a compact product fitted wherever there is an empty space.<\/p>\n<figure><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/10\/04-engineering-context-11.png?quality=85&strip=all\" alt=\"Printing Press Power Supply: Qualify a Low-Profile 24V Control Branch  title=\" width=\"1536\" height=\"1024\" printing press power supply: qualify low-profile 24v control branch title =\"\"><figcaption>Printing-control handover checklist: branch requirements, exact ordered identity, low-profile M3 mounting and system verification remain separate decisions. This concept graphic is not a wiring diagram or a validated press architecture.<\/figcaption><\/figure>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_asked_questions\"><\/span>Frequently asked questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Does_every_printing_press_use_a_24_V_control_supply\"><\/span>Does every printing press use a 24 V control supply?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No. Confirm the actual device requirements and approved branch drawing before choosing a voltage variant.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_this_candidate_power_the_whole_press\"><\/span>Can this candidate power the whole press?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No such claim is made. The documented 24 V \/ 1.5 A output is an auxiliary-supply example, not the motor, heating or complete equipment requirement.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_the_LRS-35-24_be_shown_on_a_DIN_rail\"><\/span>Can the LRS-35-24 be shown on a DIN rail?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Not as a native rail-mounted product. This exact source package documents chassis fixing holes, not an integral DIN attachment.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_should_a_buyer_request_besides_a_model_name\"><\/span>What should a buyer request besides a model name?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The exact revision, original sample identification, installation instructions, branch requirements and drawing-controlled fixing arrangement.<\/p>","protected":false},"excerpt":{"rendered":"<p>Confirm the actual control rail, current profile and protected chassis fixing before ordering the exact LRS-35-24.<\/p>","protected":false},"author":2,"featured_media":18829,"parent":0,"menu_order":15,"comment_status":"","ping_status":"","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,284],"class_list":["post-18833","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-product-articles","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/news\/18833","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/comments?post=18833"}],"version-history":[{"count":0,"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/news\/18833\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/media\/18829"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/media?parent=18833"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/bn\/wp-json\/wp\/v2\/news_category?post=18833"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}