{"id":2245,"date":"2026-08-05T15:00:00","date_gmt":"2026-08-05T15:00:00","guid":{"rendered":"https:\/\/onpowbutton.com\/news\/110v-vs-220v-push-button-led-circuits\/"},"modified":"2026-08-05T15:00:00","modified_gmt":"2026-08-05T15:00:00","slug":"110v-vs-220v-push-button-led-circuits","status":"publish","type":"post","link":"https:\/\/onpowbutton.com\/ar\/news\/110v-vs-220v-push-button-led-circuits\/","title":{"rendered":"110V vs 220V Push Button LED Circuits: Specify the Lamp Supply"},"content":{"rendered":"<div class=\"b2b-article\">\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>A 110V push button switch with illumination must be specified from the AC lamp supply first, not from the contact rating on the datasheet.<\/strong> The visible 110V or 220V LED option identifies the documented mains lamp circuit for that SKU. Match that variant to the panel&#8217;s actual control or indication supply, confirm the terminal diagram for the exact part number, and keep the lamp circuit separate from the switching contacts. For 12V or 24V DC lamp topics, use the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/news\/12v-vs-24v-illuminated-push-button-switches\/\">12V vs 24V illuminated push button guide<\/a> instead of treating this page as a low-voltage reference.<\/p>\n<figure style=\"margin:26px 0;text-align:center\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61.webp\" alt=\"ONPOW61 metal illuminated push button for specifying a 110V or 220V AC lamp circuit\"><\/figure>\n<nav class=\"b2b-toc\" style=\"background:#f5f8fa;padding:16px 20px;border-radius:8px;margin:0 0 24px\">\n<h2 id=\"contents\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Contents<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-1-what-changes-between-a-110v-and-220v-push-button-led-circuit\">Part 1. What changes between a 110V and 220V push button LED circuit?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-2-which-circuit-is-the-lamp-circuit-and-which-circuit-switches-the-load\">Part 2. Which circuit is the lamp circuit and which circuit switches the load?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-3-how-should-an-led-be-wired-for-power-status-or-actuation-on-ac-mains\">Part 3. How should an LED be wired for power, status, or actuation on AC mains?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-4-when-do-external-resistance-ac-marking-and-neutral-reference-change-the-design\">Part 4. When do external resistance, AC marking, and neutral reference change the design?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-5-which-ac-lamp-supply-mistakes-should-stop-a-panel-build\">Part 5. Which AC lamp-supply mistakes should stop a panel build?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-6-which-onpow-illuminated-families-fit-a-documented-110v-or-220v-specification\">Part 6. Which ONPOW illuminated families fit a documented 110V or 220V specification?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-7-what-should-buyers-place-in-a-mains-voltage-illuminated-push-button-rfq\">Part 7. What should buyers place in a mains-voltage illuminated push-button RFQ?<\/a><\/li>\n<\/ul>\n<\/nav>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-1-what-changes-between-a-110v-and-220v-push-button-led-circuit\">Part 1. What changes between a 110V and 220V push button LED circuit?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">At <strong>110V or 220V<\/strong>, the procurement decision is which <strong>AC lamp-supply variant<\/strong> the manufacturer documents for the SKU \u2014 not whether the contact rating happens to mention a similar number. Illuminated operators pair a switching mechanism with a lamp assembly rated for a stated mains lamp circuit; the schematic must show both circuits before terminals are assigned.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">At mains-related lamp voltages, the selected LED option is usually tied to a specific internal lamp assembly and any required current-limiting arrangement documented for that model. ONPOW&#8217;s <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/gq-product\/\">GQ product page<\/a> lists LED voltage options including 110V and 220V and notes that 110\u2013220V versions use external resistance. That note applies to the GQ family and does not prove the construction of an unlisted SKU.<\/p>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Field<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">110V LED option<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">220V LED option<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Procurement effect<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Lamp supply to document<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">110V AC as specified on the drawing<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">220V AC as specified on the drawing<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Match the order code to the actual lamp circuit<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Contact circuit<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Separate specification<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Separate specification<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">State load voltage, current, and load type independently<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Current limiting<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Per selected model documentation<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Per selected model documentation<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Do not assume the lamp assembly is interchangeable across voltages<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Safe shortcut<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">None<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">None<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">A terminal count is not a wiring diagram<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">Regional panel standards often use nominal values such as 120V or 230V on drawings. Those names do not replace the manufacturer LED voltage option on the order code. Record the documented supply, then confirm whether the project requires the 110V or 220V lamp variant shown for the selected series.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-2-which-circuit-is-the-lamp-circuit-and-which-circuit-switches-the-load\">Part 2. Which circuit is the lamp circuit and which circuit switches the load?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">On most industrial illuminated operators, the <strong>switching contacts<\/strong> and the <strong>lamp terminals<\/strong> answer different questions. Contacts start or stop a command path; the lamp path shows power present, machine state, or operator feedback \u2014 verify both on the wiring diagram for the exact part number.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">\u0627\u0644 <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/www.nkkswitches.com\/pdf\/illuminatedpushbuttons.pdf\" target=\"_blank\" rel=\"noopener\">NKK illuminated pushbutton guide<\/a> explains why higher lamp voltages may need documented current limiting. Use that as background context, then apply only the terminal markings and datasheet for the ONPOW SKU on your BOM.<\/p>\n<blockquote><p><strong>Important:<\/strong> Never infer a lamp-terminal connection from the contact rating or from a keyword such as &#8220;110V push button switch.&#8221; The <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/65935\" target=\"_blank\" rel=\"noopener\">IEC 60947-5-1 publication<\/a> covers control-circuit devices, but it does not replace the model-specific wiring diagram.<\/p><\/blockquote>\n<p style=\"margin:0 0 16px;line-height:1.7\">Ui and Ith fields on a series page describe contact-related data for that family. They are not an instruction to feed the LED from the same terminals that switch the load. If a drawing shows a 110V indication supply and a separate control circuit, both must appear on the BOM and wiring review.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-3-how-should-an-led-be-wired-for-power-status-or-actuation-on-ac-mains\">Part 3. How should an LED be wired for power, status, or actuation on AC mains?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">For a power-present indication, the LED circuit is connected across the appropriate AC control or indication supply so the actuator is lit whenever that supply is available. For state indication, the lamp circuit is driven from a proven auxiliary contact, relay output, or logic interface that represents the desired state rather than merely a button press.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Press-feedback wiring energizes the lamp only while the intended command path is active. That still requires the correct 110V or 220V lamp option, any external resistance noted on the page, and the panel&#8217;s isolation or suppression rules.<\/p>\n<figure style=\"margin:26px 0;text-align:center\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/GQ30-Series.webp\" alt=\"ONPOW GQ30 metal push button for 110V or 220V AC lamp supply documentation on industrial panels\"><\/figure>\n<table style=\"width:100%;border-collapse:collapse\">\n<thead>\n<tr>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Desired indication<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Circuit decision<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">What the drawing must show<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Power available<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Lamp across the documented AC supply<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">110V or 220V LED option and lamp terminals<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Command active<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Lamp driven by a verified state signal<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Source of the state signal and reference conductor<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Press feedback<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Lamp energized through the intended contact logic<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Whether the action is momentary or latching<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Remote or PLC-driven state<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Lamp driven by approved interface hardware<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">AC\/DC requirement, limiting parts, and failure behavior<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">When the schematic is still open, use the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/news\/push-button-switch-wiring-and-installation-guide\/\">push button switch wiring and installation guide<\/a> to read terminal labels before energizing either circuit.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-4-when-do-external-resistance-ac-marking-and-neutral-reference-change-the-design\">Part 4. When do external resistance, AC marking, and neutral reference change the design?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">At 110V and 220V lamp ratings, current limiting is part of the product documentation rather than an optional field guess. ONPOW&#8217;s GQ page states that 110\u2013220V versions use external resistance. Treat that as a GQ-family note and verify the exact BOM for the selected configuration.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">AC lamp circuits also require a clear reference on the drawing. Some panels use a documented line-to-neutral indication supply; others use line-to-line control transformers. The acceptable reference depends on the machine standard and the selected model. Do not assume a lamp marked for AC operation can be placed on any two conductors that measure the correct voltage under load.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">If a datasheet marks LED terminals with polarity, maintain the stated connection even when the supply is AC. ONPOW&#8217;s GQ page describes an AC\/DC LED lamp with no anode\/cathode terminal difference for certain GQ configurations; that published note should be used only for the relevant GQ configuration, not as a universal rule across every illuminated switch.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/www.eaton.com\/us\/en-us\/products\/controls-drives-automation-sensors\/pushbuttons-and-signal-towers\/how-to-select-a-pushbutton.html\" target=\"_blank\" rel=\"noopener\">Eaton&#8217;s pushbutton selection overview<\/a> reinforces that pilot devices are chosen from circuit function and mounting data. Use that framing when reviewing whether the lamp circuit belongs on a dedicated indication supply rather than on an improvised tap from the power circuit.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-5-which-ac-lamp-supply-mistakes-should-stop-a-panel-build\">Part 5. Which AC lamp-supply mistakes should stop a panel build?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">A 110V lamp option connected directly to a 220V supply is a stop condition unless the selected model documentation explicitly supports the arrangement. A 220V option on a 110V supply is also not a specification shortcut: visible output and behavior cannot be accepted from assumption.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Avoid these recurring errors on AC panels:<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">ordering by contact voltage while omitting LED voltage;<\/li>\n<li style=\"margin:0 0 8px\">using a mains lamp variant where the drawing actually specifies 12V or 24V DC;<\/li>\n<li style=\"margin:0 0 8px\">omitting or guessing external resistance when the datasheet requires it;<\/li>\n<li style=\"margin:0 0 8px\">tying a status lamp to a contact that does not represent the machine state;<\/li>\n<li style=\"margin:0 0 8px\">treating Ui 250V or Ith 5A as proof that the lamp may share the load terminals; and<\/li>\n<li style=\"margin:0 0 8px\">assuming every illuminated device is polarity-free or internally limited.<\/li>\n<\/ul>\n<p style=\"margin:0 0 16px;line-height:1.7\">When the panel uses low-voltage DC indication instead, stop and route the specification to the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/news\/12v-vs-24v-illuminated-push-button-switches\/\">12V vs 24V illuminated push button guide<\/a>. Mixing AC mains and DC lamp guidance on one BOM line creates repeatable commissioning failures.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-6-which-onpow-illuminated-families-fit-a-documented-110v-or-220v-specification\">Part 6. Which ONPOW illuminated families fit a documented 110V or 220V specification?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">For a project whose AC lamp circuit is already documented, the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/gq-product\/\">ONPOW GQ product family<\/a> is a relevant starting point because the page publishes LED options through 110V and 220V and notes external resistance for that range. Narrow the choice by cutout, operation, terminal type, protection need, LED color, and the exact lamp-circuit note.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">\u0627\u0644 <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/onpow61-serise-product\/\">\u0633\u0644\u0633\u0644\u0629 ONPOW61<\/a> lists 16 mm, 19 mm and 22 mm installation diameters, 1NO1NC or 2NO2NC contact structures, and AC\/DC 6V\/12V\/24V\/110V\/220V LED options. Its published Ui 250V and Ith 5A are series facts for contact-related review, not an instruction to use a contact circuit as the LED supply.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Use the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/metal-push-button-switch\/\">metal push button switch category<\/a> only to browse related diameters and styles before returning to the exact series page for lamp-voltage evidence.<\/p>\n<figure style=\"margin:26px 0;text-align:center\"><img decoding=\"async\" style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW62.webp\" alt=\"ONPOW62 metal illuminated push button for documented 110V or 220V AC lamp supply selection\"><\/figure>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-7-what-should-buyers-place-in-a-mains-voltage-illuminated-push-button-rfq\">Part 7. What should buyers place in a mains-voltage illuminated push-button RFQ?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">An RFQ becomes comparable when it separates the lamp circuit from the switching duty. Send the exact panel cutout, part number if known, momentary or latching action, contact arrangement, contact load and load type, AC lamp supply (110V or 220V as documented), LED color, desired indication behavior, terminal preference, protection target, quantity, and destination-market documentation request.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Fit Boundary:<\/strong> Use this guide when the drawing documents an AC lamp supply (110V or 220V context) and the desired indication behavior. It does not replace field verification on unknown terminals, undocumented supply values, or unfinished lamp logic. For 12V\/24V DC lamp work, use the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/news\/12v-vs-24v-illuminated-push-button-switches\/\">12V vs 24V illuminated push button guide<\/a>. Send completed inputs through <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/contact-us\/\">contact ONPOW with panel specifications<\/a> or browse <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/category\/blog\/\">ONPOW blog guides<\/a> for related panel topics.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"faqs\">\u0627\u0644\u0623\u0633\u0626\u0644\u0629 \u0627\u0644\u0634\u0627\u0626\u0639\u0629<\/h2>\n<h3 style=\"margin:28px 0 12px\">What is the difference between a 110V and 220V illuminated push button?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">A 110V or 220V label usually identifies the specified AC lamp supply option for that SKU. Select it from the actual LED circuit on the drawing and confirm the exact model&#8217;s terminal and resistance information.<\/p>\n<h3 style=\"margin:28px 0 12px\">Can I connect a 110V LED option to a 220V lamp supply?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Not directly by assumption. Stop and use the manufacturer documentation for the selected lamp circuit; a voltage mismatch can require a documented current-limiting solution or the correct voltage variant.<\/p>\n<h3 style=\"margin:28px 0 12px\">Are the LED terminals separate from the switch contacts?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">They often are, but terminal arrangement is model-specific. Use the exact wiring diagram rather than counting pins or relying on another series.<\/p>\n<h3 style=\"margin:28px 0 12px\">Does a 110V push button switch mean the contacts switch 110V loads directly?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">No. The keyword often reflects search language for illuminated operators on AC panels. Contact duty, utilization category, and any required interface hardware must be documented separately from the lamp supply.<\/p>\n<h3 style=\"margin:28px 0 12px\">Why do some illuminated switches need external resistance at 110V or 220V?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Higher lamp voltages typically require current limiting defined by the manufacturer. ONPOW&#8217;s GQ page notes external resistance for 110\u2013220V options. Confirm the selected SKU rather than adding or omitting parts from appearance alone.<\/p>\n<h3 style=\"margin:28px 0 12px\">Should I order 110V or 220V for a 120V or 230V panel?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Record the documented supply and nominal standard first, then match the manufacturer LED voltage option listed for the selected series. Do not treat nominal regional names as proof that any nearby lamp variant is acceptable.<\/p>\n<h3 style=\"margin:28px 0 12px\">What must an RFQ state for a mains-voltage illuminated push button?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">State the contact duty and lamp circuit separately, plus cutout, action, contacts, AC lamp voltage and color, desired indication behavior, terminals, protection need, quantity, and documentation requirement.<\/p>\n<h3 style=\"margin:28px 0 12px\">Where should low-voltage 12V or 24V LED options be documented instead?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Use the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/ar\/news\/12v-vs-24v-illuminated-push-button-switches\/\">12V vs 24V illuminated push button guide<\/a> for DC control-circuit lamp supplies. That article covers internal resistance and polarity topics for low-voltage options rather than mains lamp specification.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"references\">References<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/65935\" target=\"_blank\" rel=\"noopener\">IEC 60947-5-1 control circuit devices and switching elements<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/www.nkkswitches.com\/pdf\/illuminatedpushbuttons.pdf\" target=\"_blank\" rel=\"noopener\">NKK illuminated pushbutton technical guide<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/www.eaton.com\/us\/en-us\/products\/controls-drives-automation-sensors\/pushbuttons-and-signal-towers\/how-to-select-a-pushbutton.html\" target=\"_blank\" rel=\"noopener\">Eaton pushbutton selection overview<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/electronics.stackexchange.com\/questions\/444783\/how-to-correctly-power-the-led-of-a-push-button\" target=\"_blank\" rel=\"noopener\">Electronics Stack Exchange discussion of a pushbutton LED voltage variant<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/forum.allaboutcircuits.com\/threads\/correct-voltage-for-led-illuminated-push-button.176558\/\" target=\"_blank\" rel=\"noopener\">All About Circuits forum thread on illuminated push button supply voltage<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A 110V push button switch with illumination must be specified from the AC lamp supply first, not from the contact rating on the datasheet. The visible 110V or 220V LED option identifies the documented mains lamp circuit for that SKU. Match that variant to the panel&#8217;s actual control or indication supply, confirm the terminal diagram [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":2179,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[1,98],"tags":[],"class_list":["post-2245","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","category-news"],"uagb_featured_image_src":{"full":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61.webp",500,500,false],"thumbnail":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61-150x150.webp",150,150,true],"medium":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61-300x300.webp",300,300,true],"medium_large":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61.webp",500,500,false],"large":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61.webp",500,500,false],"1536x1536":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61.webp",500,500,false],"2048x2048":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61.webp",500,500,false],"trp-custom-language-flag":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/ONPOW61-12x12.webp",12,12,true]},"uagb_author_info":{"display_name":"Relife","author_link":"https:\/\/onpowbutton.com\/ar\/author\/relife\/"},"uagb_comment_info":0,"uagb_excerpt":"A 110V push button switch with illumination must be specified from the AC lamp supply first, not from the contact rating on the datasheet. The visible 110V or 220V LED option identifies the documented mains lamp circuit for that SKU. Match that variant to the panel&#8217;s actual control or indication supply, confirm the terminal diagram&hellip;","_links":{"self":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts\/2245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/comments?post=2245"}],"version-history":[{"count":1,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts\/2245\/revisions"}],"predecessor-version":[{"id":2249,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/posts\/2245\/revisions\/2249"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/media\/2179"}],"wp:attachment":[{"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/media?parent=2245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/categories?post=2245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onpowbutton.com\/ar\/wp-json\/wp\/v2\/tags?post=2245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}