{"id":974,"date":"2026-07-30T09:00:00","date_gmt":"2026-07-30T01:00:00","guid":{"rendered":"https:\/\/lemaele.com\/blog\/ip68-waterproof-micro-switch-selection-guide\/"},"modified":"2026-07-24T17:21:48","modified_gmt":"2026-07-24T09:21:48","slug":"ip68-waterproof-micro-switch-selection-guide","status":"publish","type":"post","link":"https:\/\/lemaele.com\/es\/blog\/ip68-waterproof-micro-switch-selection-guide\/","title":{"rendered":"Specifying an IP68 Micro Switch Sealing Envelope"},"content":{"rendered":"<div class=\"b2b-article\">\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>IP68 is a negotiated promise, not a fixed depth.<\/strong> The second digit 8 means continuous immersion under conditions the manufacturer and user agree, which makes your written envelope \u2014 depth, duration, chemistry, temperature \u2014 the real specification. Write it before comparing parts.<\/p>\n<figure style=\"margin:26px 0;text-align:center\" class=\"wp-block-image size-large b2b-article-figure\"><img style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/lemaele.com\/wp-content\/uploads\/2026\/05\/KW12F-series-water-proof-micro-switch.webp\" alt=\"LEMA KW12F series waterproof micro switch photo for IP68 envelope planning\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/figure>\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\">Contenido<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-1-what-does-ip68-promise-beyond-ip67\">Part 1. What does IP68 promise beyond IP67?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-2-how-should-the-immersion-envelope-be-written\">Part 2. How should the immersion envelope be written?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-3-which-entry-points-break-sealed-designs\">Part 3. Which entry points break sealed designs?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-4-how-do-washdown-chemistry-and-temperature-interact\">Part 4. How do washdown chemistry and temperature interact?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-5-which-validation-steps-prove-the-envelope\">Part 5. Which validation steps prove the envelope?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-6-what-belongs-in-the-rfq-and-fit-boundary\">Part 6. What belongs in the RFQ and Fit Boundary?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#part-7-how-can-lema-support-an-ip68-inquiry\">Part 7. How can LEMA support an IP68 inquiry?<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#faqs\">Preguntas frecuentes<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"#references\">Referencias<\/a><\/li>\n<\/ul>\n<\/nav>\n<h2 id=\"part-1-what-does-ip68-promise-beyond-ip67\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Part 1. What does IP68 promise beyond IP67?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">The first digit covers solids and the second covers water, and the jump from 7 to 8 changes the question. IPX7 describes temporary immersion under defined test conditions, while IPX8 hands the conditions to an agreement between maker and user.<\/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\">Class<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Water condition<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Practical reading<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">IPX5 \/ IPX6<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Jets and heavy seas<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Washdown spray without immersion<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">IPX7<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Temporary immersion<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Defined depth and time test<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">IPX8<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Continuous immersion<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Conditions agreed per application<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"margin:0 0 16px;line-height:1.7\">Sealed families in the <a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/es\/micro-switch\/\">LEMA Micro Switch product line<\/a> state their construction approach; the envelope you write decides which applies.<\/p>\n<h2 id=\"part-2-how-should-the-immersion-envelope-be-written\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Part 2. How should the immersion envelope be written?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Envelope writing means numbers: maximum depth, longest continuous immersion, total immersed hours per year, and whether the switch operates while submerged or only survives submersion. Each of those changes the sealing design.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">General sealing principles behind these choices are collected in the <a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/es\/blog\/waterproof-micro-switch-characteristics-principles-and-applications\/\">waterproof switch principles overview<\/a>.<\/p>\n<h2 id=\"part-3-which-entry-points-break-sealed-designs\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Part 3. Which entry points break sealed designs?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Water finds the interfaces, not the housing walls. The three recurring leak paths are the cable exit, the actuator penetration, and the mounting face.<\/p>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">Specify the cable exit as a sealed system, including the jacket material and bend protection.<\/li>\n<li style=\"margin:0 0 8px\">Treat the actuator boot or diaphragm as a wear part with a defined motion budget.<\/li>\n<li style=\"margin:0 0 8px\">Control the mounting face with gasket compression, not sealant hope.<\/li>\n<li style=\"margin:0 0 8px\">Check connector class separately; an IP68 body with an IP54 connector is an IP54 assembly.<\/li>\n<\/ul>\n<p style=\"margin:0 0 16px;line-height:1.7\">Factory-sealed lead assemblies remove the field-made joint entirely; the <a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/es\/blog\/ip67-micro-switch-with-cable-selection-guide\/\">IP67 cable harness selection<\/a> method extends directly to IP68 leads.<\/p>\n<h2 id=\"part-4-how-do-washdown-chemistry-and-temperature-interact\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Part 4. How do washdown chemistry and temperature interact?<\/h2>\n<figure style=\"margin:26px 0;text-align:center\" class=\"wp-block-image size-large b2b-article-figure\"><img style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/lemaele.com\/wp-content\/uploads\/2026\/05\/KW12F-series-water-proof-micro-switch.2.webp\" alt=\"LEMA KW12F series waterproof micro switch sealing detail for review\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">Washdown adds pressure, heat, and chemistry to plain immersion. Detergents and sanitizers attack elastomers slowly, and a hot cycle followed by cold rinse pumps air and moisture across any marginal seal.<\/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\">Exposici\u00f3n<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Seal stress<\/th>\n<th style=\"border:1px solid #d9e1e8;padding:9px 12px;background:#f5f8fa;text-align:left\">Envelope entry<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">High-pressure rinse<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Jet force on boots and gaskets<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Pressure, distance, and nozzle angle<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Cleaning chemistry<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Elastomer swelling or hardening<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Agent list with concentrations<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Thermal cycling<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Breathing across seals<\/td>\n<td style=\"border:1px solid #d9e1e8;padding:9px 12px\">Temperature range and cycle count<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2 id=\"part-5-which-validation-steps-prove-the-envelope\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Part 5. Which validation steps prove the envelope?<\/h2>\n<p style=\"margin:0 0 16px;line-height:1.7\">Validation follows the envelope line by line: immerse to the written depth and duration, wash at the written pressure and chemistry, and cycle the actuator through its full motion while sealed samples are wet.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\">Test production-intent assemblies with their real cable, connector, and bracket. A bare switch passing a beaker test proves little about the installed system.<\/p>\n<h2 id=\"part-6-what-belongs-in-the-rfq-and-fit-boundary\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Part 6. What belongs in the RFQ and Fit Boundary?<\/h2>\n<h3 style=\"margin:28px 0 12px\">RFQ input checklist<\/h3>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\">Immersion depth, duration, and operating-while-submerged status<\/li>\n<li style=\"margin:0 0 8px\">Washdown pressure, chemistry, and frequency<\/li>\n<li style=\"margin:0 0 8px\">Temperature range, cycling, and mounting orientation<\/li>\n<li style=\"margin:0 0 8px\">Cable exit, connector class, and actuator motion budget<\/li>\n<li style=\"margin:0 0 8px\">Volumen y momento de la toma de muestra<\/li>\n<\/ul>\n<h3 style=\"margin:28px 0 12px\">Fit Boundary<\/h3>\n<p style=\"margin:0 0 16px;line-height:1.7\">This guide defines and tests a sealing envelope. It does not certify a depth-duration result, an outdoor life, or a chemical compatibility list for any specific model.<\/p>\n<h2 id=\"part-7-how-can-lema-support-an-ip68-inquiry\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Part 7. How can LEMA support an IP68 inquiry?<\/h2>\n<figure style=\"margin:26px 0;text-align:center\" class=\"wp-block-image size-large b2b-article-figure\"><img style=\"max-width:640px;width:100%;height:auto;display:block;margin:0 auto;border-radius:8px\" src=\"https:\/\/lemaele.com\/wp-content\/uploads\/2026\/05\/KW12F-series-water-proof-micro-switch.3.webp\" alt=\"LEMA KW12F series waterproof micro switch view for a washdown OEM inquiry\" loading=\"lazy\" decoding=\"async\" title=\"\"><\/figure>\n<p style=\"margin:0 0 16px;line-height:1.7\">Bring the written envelope to a sealed family review. The <a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/es\/kw12f-series-waterproof-micro-switch\/\">KW12F series waterproof micro switch<\/a> page is a public LEMA route for that discussion.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><strong>Recomendaci\u00f3n de producto:<\/strong> request a construction review against the envelope document, then sample with the production cable and bracket. Comparing IP labels without an envelope is the common failure path.<\/p>\n<p style=\"margin:0 0 16px;line-height:1.7\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/lemaele.com\/es\/contact-us\/\">Send an OEM switch RFQ<\/a> with the envelope attached.<\/p>\n<h2 id=\"faqs\">Preguntas frecuentes<\/h2>\n<h3>What is the difference between IP67 and IP68?<\/h3>\n<p>IPX7 covers temporary immersion under a defined test; IPX8 covers continuous immersion under conditions agreed between manufacturer and user, so the application envelope defines it.<\/p>\n<h3>Does IP68 mean the switch works underwater?<\/h3>\n<p>Not necessarily. Surviving immersion and operating while submerged are different requirements, and the envelope must state which one applies.<\/p>\n<h3>Where do sealed switches usually leak?<\/h3>\n<p>At interfaces: cable exits, actuator boots, mounting faces, and connectors, rather than through the housing body.<\/p>\n<h3>Do cleaning chemicals affect an IP rating?<\/h3>\n<p>Ingress classes cover water, not chemistry; detergents and sanitizers can degrade elastomers, so the agent list needs its own review.<\/p>\n<h3>Can I combine an IP68 switch with any connector?<\/h3>\n<p>No. The assembly takes the lowest class in the chain, so the connector and cable system must match the target envelope.<\/p>\n<h3>What should an IP68 RFQ define?<\/h3>\n<p>Define depth, duration, washdown pressure and chemistry, temperature cycling, entry points, actuator motion, mounting, volume, and sample timing.<\/p>\n<h2 id=\"references\" style=\"margin:42px 0 14px;scroll-margin-top:96px\">Referencias<\/h2>\n<ul style=\"margin:0 0 18px 1.2em;line-height:1.7\">\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/prod-edam.honeywell.com\/content\/dam\/honeywell-edam\/sps\/siot\/en-us\/products\/switches\/basic-switches\/miniature-basic-switches\/v3-series\/documents\/sps-sst-micro-switch-v3-basic-datasheet.pdf\" target=\"_blank\" rel=\"noopener\">Honeywell V3 basic switch datasheet<\/a><\/li>\n<li style=\"margin:0 0 8px\"><a style=\"color:#f27c00;text-decoration:underline\" href=\"https:\/\/webstore.iec.ch\/en\/publication\/66912\" target=\"_blank\" rel=\"noopener\">Alcance de la publicaci\u00f3n IEC 61058-1<\/a><\/li>\n<\/ul>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>IP68 is a negotiated promise, not a fixed depth. The second digit 8 means continuous immersion under conditions the manufacturer and user agree, which makes your written envelope \u2014 depth, duration, chemistry, temperature \u2014 the real specification. Write it before comparing parts. Contents Part 1. What does IP68 promise beyond IP67? Part 2. How should [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":172,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-974","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/posts\/974","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/comments?post=974"}],"version-history":[{"count":2,"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/posts\/974\/revisions"}],"predecessor-version":[{"id":1045,"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/posts\/974\/revisions\/1045"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/media\/172"}],"wp:attachment":[{"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/media?parent=974"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/categories?post=974"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lemaele.com\/es\/wp-json\/wp\/v2\/tags?post=974"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}