{"id":2118,"date":"2026-07-17T05:01:00","date_gmt":"2026-07-17T05:01:00","guid":{"rendered":"https:\/\/onpowbutton.com\/news\/20a-push-button-switch-direct-load-contactor\/"},"modified":"2026-07-17T05:10:00","modified_gmt":"2026-07-17T05:10:00","slug":"20a-push-button-switch-direct-load-contactor","status":"publish","type":"post","link":"https:\/\/onpowbutton.com\/fr\/news\/20a-push-button-switch-direct-load-contactor\/","title":{"rendered":"20A Push Button Switches: When to Switch a Load Directly and When to Use a Contactor"},"content":{"rendered":"<div class=\"b2b-article\">\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>A 20A push button switch should not be selected for direct load switching from the \u201c20A\u201d label alone.<\/strong> The label must be tied to the exact model, the meaning of the published current field, and the actual load duty. When the necessary operational-duty evidence is not available, use the button as a control input to a properly selected contactor rather than treating it as the power switch.<\/p>\n<nav class=\"b2b-toc\" style=\"background:#f5f8fa;padding:16px 20px;border-radius:8px;margin:0 0 24px\">\n<h2 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-does-20a-mean-on-a-push-button-switch\">Part 1. What does 20A mean on a push button switch?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-2-why-is-ith-not-a-switched-load-rating\">Part 2. Why is Ith not a switched-load rating?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-3-when-can-direct-switching-be-evaluated\">Part 3. When can direct switching be evaluated?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-4-when-is-a-contactor-the-better-circuit-choice\">Part 4. When is a contactor the better circuit choice?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-5-which-load-details-change-the-answer\">Part 5. Which load details change the answer?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-6-where-does-gq30-l-11-s-fit-the-documented-evidence\">Part 6. Where does GQ30-L-11\/S fit the documented evidence?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"#part-7-what-should-the-rfq-include\">Part 7. What should the RFQ include?<\/a><\/li>\n<\/ul>\n<\/nav>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-1-what-does-20a-mean-on-a-push-button-switch\">Part 1. What does 20A mean on a push button switch?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">\u201c20A\u201d is not a complete sentence in an electrical specification. It can refer to a named current field under a stated standard, temperature, enclosure condition, or duty. A sourcing decision needs the full field name, the model number, and the application conditions before it can determine whether a device is intended to make and break the proposed load.<\/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\" alt=\"ONPOW panel push button for control-circuit selection\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1.webp\" \/><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">For the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/fr\/30mmstainless-steelscrew-terminal-product\/\">ONPOW GQ30-L-11\/S page<\/a>, the listed fields include Ui 250V and Ith 20A. Ui is an insulation-voltage field; Ith is a conventional thermal-current field. Neither label alone states a validated load type, operational utilization category, switching frequency, inrush capability, or a direct motor-control recommendation.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">The search phrase can therefore hide different buyer needs. One buyer may need a maintained local isolating action, another a momentary command for a contactor coil, and another a resistive load switch. The right answer begins with the load and circuit, not with a current headline.<\/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\">Specification field<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">What it tells you<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">What it does not establish<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ui<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Insulation-voltage context<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Direct switching duty<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Ith<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Conventional thermal-current test context<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">A validated make\/break rating for every load<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Contact arrangement<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Available circuit paths<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Motor or inductive duty without other data<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">IP field<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Stated ingress boundary<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Electrical load suitability<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">For the wider panel-control context, see the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/fr\/news\/22mm-push-button-switch-guide\/\">22mm push button switch guide<\/a>. Hole size and housing style remain separate from the electrical-duty decision.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-2-why-is-ith-not-a-switched-load-rating\">Part 2. Why is Ith not a switched-load rating?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Le <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/low-voltage-power-distribution-controls-systems\/low-voltage-switchgear\/eaton-consulting-application-guide-for-low-voltage-switchgear-according-to-iec-standards-en-gb.pdf\" target=\"_blank\" rel=\"noopener\">Eaton IEC application guide<\/a> defines conventional free-air thermal current, Ith, as the maximum test current used for temperature-rise tests of unenclosed equipment in free air. It further distinguishes this test concept from rated operational current.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">In practice, the distinction changes the selection process. Carrying a defined current under temperature-rise test conditions does not, by itself, demonstrate how contacts perform while repeatedly closing and opening an inductive load, managing inrush, or interrupting an arc. Enclosure temperature, switching frequency, conductor choice, protective devices, and the load\u2019s electrical behavior also affect the selection.<\/p>\n<blockquote>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Important:<\/strong> Do not write \u201cdirectly switches 20A\u201d where the available product evidence only lists <code>Ith 20A<\/code>. The <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/low-voltage-power-distribution-controls-systems\/low-voltage-switchgear\/eaton-consulting-application-guide-for-low-voltage-switchgear-according-to-iec-standards-en-gb.pdf\" target=\"_blank\" rel=\"noopener\">Eaton application guide<\/a> is the source for the thermal-current distinction.<\/p>\n<\/blockquote>\n<p style=\"margin:0 0 16px;line-height:1.7\">A thermal-current field can still be important for thermal design and comparison. It simply cannot replace a documented operational switching category and its application conditions. That is why comparable contactors show separate conventional thermal and application-duty information in their documentation.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-3-when-can-direct-switching-be-evaluated\">Part 3. When can direct switching be evaluated?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Direct switching can be evaluated only after the buyer identifies the load and obtains model-specific operational switching evidence that covers the use case. \u201cLoad is under 20A\u201d is not enough information. The selected product documentation must relate to the actual voltage, current, load type, operating frequency, circuit protection, and environmental conditions.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Start with the questions below. If any answer is unknown, the safer engineering path is to collect the data or use a contactor architecture that separates local control from power switching.<\/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\">Direct-switching input<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Why it changes the decision<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Evidence to request<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Supply voltage and AC\/DC<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Contact interruption differs by circuit<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Exact operational rating at voltage<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Load type<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Resistive, inductive, capacitive, and motor loads behave differently<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Applicable utilization\/duty category<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Inrush and starting behavior<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Peak current can exceed steady current<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Load or motor data<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Switching frequency<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Contact wear depends on operations<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Electrical endurance under stated duty<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Protection and enclosure<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Fault and temperature conditions matter<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Coordination and derating information<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">This is not a claim that a contactor is always required. It is a decision boundary: direct switching needs evidence for the intended duty, while an incomplete current label is insufficient evidence.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-4-when-is-a-contactor-the-better-circuit-choice\">Part 4. When is a contactor the better circuit choice?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">When a load needs a device selected for its power duty, a push button can command the contactor coil instead of carrying the load path. <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/control.com\/technical-articles\/how-to-wire-motor-starters-and-contactors\/\" target=\"_blank\" rel=\"noopener\">Control.com\u2019s motor-starter article<\/a> explains a common arrangement: an NO Start contact momentarily energizes a coil, an auxiliary contact seals in the command, and an NC Stop contact opens the coil circuit.<\/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\" alt=\"ONPOW industrial push button series for a panel control circuit\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1-AGQ16-Series.webp\" \/><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">This separates responsibilities. The push button is chosen for the operator interface and control circuit.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">The contactor, overload protection, and other protective components are selected for the load and machine requirements. The architecture also gives the designer a clear place to define stop behavior, loss-of-control-power behavior, and additional interlocks.<\/p>\n<blockquote>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>From the field:<\/strong> One engineer described the conventional answer as \u201cadd a contactor with a couple of no\/nc push buttons.\u201d The value of that wording is the buyer concern\u2014operation count and control location\u2014not a substitute for a project design review. \u2014 <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/electronics.stackexchange.com\/questions\/280232\/using-motor-circuit-breaker-buttons-to-start-stop-motor\" target=\"_blank\" rel=\"noopener\">Electronics Stack Exchange discussion<\/a><\/p>\n<\/blockquote>\n<p style=\"margin:0 0 16px;line-height:1.7\">For installation-oriented reading, link the drawing package to the <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/fr\/news\/push-button-switch-wiring-and-installation-guide\/\">push button switch wiring and installation guide<\/a>. The final circuit must still be designed and reviewed for the equipment in question.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-5-which-load-details-change-the-answer\">Part 5. Which load details change the answer?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Inductive loads, motors, solenoids, transformers, and switched power supplies can impose conditions that a simple steady-current number does not describe. Likewise, a resistive heater may have different switching behavior from a motor even when their running currents look similar.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">The decision is affected by:<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">load type and starting\/inrush behavior;<\/li>\n<li style=\"margin:0 0 8px\">circuit voltage and whether it is AC or DC;<\/li>\n<li style=\"margin:0 0 8px\">operating frequency and expected electrical endurance;<\/li>\n<li style=\"margin:0 0 8px\">ambient and enclosure temperature;<\/li>\n<li style=\"margin:0 0 8px\">upstream protection and prospective fault conditions;<\/li>\n<li style=\"margin:0 0 8px\">required stop, restart, and interlock behavior.<\/li>\n<\/ul>\n<p style=\"margin:0 0 16px;line-height:1.7\">Do not turn these questions into a generic compliance claim. They are the input set needed to match the device documentation with the application. A current number without those inputs is not a complete load specification.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Fit Boundary:<\/strong> This guide fits a buyer choosing the control architecture with documented load data. It does not fit a request to certify that a particular button will directly switch an unspecified 20A load, provide a safety function, or meet an unstated regional requirement.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-6-where-does-gq30-l-11-s-fit-the-documented-evidence\">Part 6. Where does GQ30-L-11\/S fit the documented evidence?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Le <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/fr\/30mmstainless-steelscrew-terminal-product\/\">GQ30-L-11\/S 30mm screw-terminal push button<\/a> is a candidate when the buyer needs its physical interface and can match the application to the page\u2019s published model fields. The page lists Ui 250V, Ith 20A, screw terminals, front IP65 with IP67 made to order, and IK09. It also lists stainless steel for the button and body, plus silver-alloy contacts and a PA base.<\/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\" alt=\"ONPOW metal push button for industrial panel selection\" src=\"https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/GQ16.webp\" \/><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">Its listed Ith is useful to record accurately: <strong>GQ30-L-11\/S lists Ith 20A.<\/strong> That sentence must not become \u201cthe model switches a 20A load.\u201d The page does not provide the operational-duty validation needed for that conclusion. It also does not support claims about safety certification, motor duty, or suitability for a particular equipment type.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Choose another documented product or a contactor-based circuit when the project needs a stated utilization category, direct-load evidence, a different panel size, or a safety function. The <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/fr\/news\/metal-vs-plastic-push-button-switches\/\">metal vs plastic push buttons<\/a> article can help with enclosure-material questions, but it cannot resolve the load-duty evidence.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\" id=\"part-7-what-should-the-rfq-include\">Part 7. What should the RFQ include?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">An RFQ should allow a supplier or controls engineer to assess the actual circuit\u2014not guess from \u201c20A.\u201d Supply the fields below together with the requested model or desired panel size.<\/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\">Buyer should provide<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Why it matters<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Common mistake<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Exact load type and voltage<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Identifies relevant duty<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Stating only amperes<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Running current, inrush, and start data<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Tests direct-switching suitability<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Using steady current alone<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">AC\/DC and switching frequency<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Affects contact duty and endurance<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Omitting operation rate<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Circuit diagram or architecture<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Shows button, coil, and load paths<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Assuming a button must carry power<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Required panel interface and front exposure<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Confirms 30mm fit and stated IP need<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Treating IP as a load rating<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Protection and documentation requirements<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Enables a complete review<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Inferring certification from a series name<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">To discuss a documented configuration, <a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/onpowbutton.com\/fr\/contact-us\/\">contact ONPOW with load and control details<\/a>. Include the application information above so the enquiry can be assessed against exact model documentation.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\">FAQ<\/h2>\n<h3 style=\"margin:28px 0 12px\">What does 20A mean on a push button switch?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">It identifies a current field only when read with the exact model documentation. For GQ30-L-11\/S, the page lists Ith 20A.<\/p>\n<h3 style=\"margin:28px 0 12px\">Is Ith the same as a switched-load rating?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">No. Ith is a conventional thermal-current concept for temperature-rise testing; it does not automatically establish make\/break performance for a proposed load.<\/p>\n<h3 style=\"margin:28px 0 12px\">Can a 20A push button switch a motor directly?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Only model-specific operational-duty evidence and the complete circuit conditions can answer that. Do not infer it from Ith.<\/p>\n<h3 style=\"margin:28px 0 12px\">When should a contactor be used instead?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Use a contactor architecture when the load needs a purpose-selected power-switching device or when direct-load evidence for the button is incomplete.<\/p>\n<h3 style=\"margin:28px 0 12px\">Does a higher current number cover inductive loads?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">No. Inductive-duty behavior must be covered by the relevant operational data, including voltage and use conditions.<\/p>\n<h3 style=\"margin:28px 0 12px\">What must be checked for a direct-load design?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">Check load type, voltage, current, inrush, switching frequency, duty category, endurance, protection, temperature, and installation conditions.<\/p>\n<h3 style=\"margin:28px 0 12px\">What should an RFQ say for a 20A push button?<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">State the model or panel interface, complete load and circuit data, environmental conditions, quantity, and documentation requirements.<\/p>\n<h2 style=\"margin:42px 0 14px;scroll-margin-top:96px\">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:\/\/www.eaton.com\/content\/dam\/eaton\/products\/low-voltage-power-distribution-controls-systems\/low-voltage-switchgear\/eaton-consulting-application-guide-for-low-voltage-switchgear-according-to-iec-standards-en-gb.pdf\" target=\"_blank\" rel=\"noopener\">Eaton: Consulting application guide for IEC low-voltage switchgear<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#27649a;text-decoration:underline\" href=\"https:\/\/www.eaton.com\/content\/dam\/eaton\/products\/industrialcontrols-drives-automation-sensors\/d-line-contactors-and-starters\/eaton-d-line-motor-controls-brochure-en-us.pdf\" target=\"_blank\" rel=\"noopener\">Eaton: D-Line motor controls brochure<\/a><\/li>\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:\/\/control.com\/technical-articles\/how-to-wire-motor-starters-and-contactors\/\" target=\"_blank\" rel=\"noopener\">Control.com: How to Wire Motor Starters and Contactors<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>A 20A push button switch should not be selected for direct load switching from the \u201c20A\u201d label alone. The label must be tied to the exact model, the meaning of the published current field, and the actual load duty. When the necessary operational-duty evidence is not available, use the button as a control input to [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":2058,"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-2118","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\/LAS1.webp",500,500,false],"thumbnail":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1-150x150.webp",150,150,true],"medium":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1-300x300.webp",300,300,true],"medium_large":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1.webp",500,500,false],"large":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1.webp",500,500,false],"1536x1536":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1.webp",500,500,false],"2048x2048":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1.webp",500,500,false],"trp-custom-language-flag":["https:\/\/onpowbutton.com\/wp-content\/uploads\/2026\/07\/LAS1-12x12.webp",12,12,true]},"uagb_author_info":{"display_name":"Relife","author_link":"https:\/\/onpowbutton.com\/fr\/author\/relife\/"},"uagb_comment_info":0,"uagb_excerpt":"A 20A push button switch should not be selected for direct load switching from the \u201c20A\u201d label alone. The label must be tied to the exact model, the meaning of the published current field, and the actual load duty. When the necessary operational-duty evidence is not available, use the button as a control input to\u2026","_links":{"self":[{"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/posts\/2118","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/comments?post=2118"}],"version-history":[{"count":1,"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/posts\/2118\/revisions"}],"predecessor-version":[{"id":2120,"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/posts\/2118\/revisions\/2120"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/media\/2058"}],"wp:attachment":[{"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/media?parent=2118"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/categories?post=2118"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onpowbutton.com\/fr\/wp-json\/wp\/v2\/tags?post=2118"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}