{"id":16933,"date":"2026-09-22T16:11:33","date_gmt":"2026-09-22T08:11:33","guid":{"rendered":"https:\/\/www.wehopower.com\/?post_type=news&#038;p=16933"},"modified":"2026-09-24T16:22:52","modified_gmt":"2026-09-24T08:22:52","slug":"fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure","status":"publish","type":"news","link":"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/","title":{"rendered":"Fanless vs Fan-Cooled Power Supply: Which Fits Your Enclosure?"},"content":{"rendered":"<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\">\u00cdndice<\/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=\"Alternar \u00edndice de conte\u00fado\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Alternar<\/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\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Introduction\" >Introdu\u00e7\u00e3o<\/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\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#What_Is_a_Fanless_Power_Supply_vs_a_Fan%E2%80%91Cooled_Power_Supply\" >What Is a Fanless Power Supply vs a Fan\u2011Cooled Power Supply?<\/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\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Fanless_vs_Fan%E2%80%91Cooled_Power_Supplies_Key_Differences\" >Fanless vs Fan\u2011Cooled Power Supplies: Key Differences<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Cooling_method\" >M\u00e9todo de resfriamento<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Heat_dissipation_capability\" >Heat dissipation capability<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Power_density\" >Power density<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Noise_level\" >Noise level<\/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\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Dust_moisture_resistance\" >Dust &amp; moisture resistance<\/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\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Maintenance_requirements\" >Maintenance requirements<\/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\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Lifespan_reliability\" >Lifespan &amp; reliability<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Why_Does_the_Enclosure_Matter\" >Why Does the Enclosure Matter?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Fanless_vs_Fan%E2%80%91Cooled_Which_One_Fits_Your_Enclosure\" >Fanless vs Fan\u2011Cooled: Which One Fits Your Enclosure?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Choose_Fanless_Power_Supply_if\" >Choose Fanless Power Supply if:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Choose_Fan%E2%80%91Cooled_Power_Supply_if\" >Choose Fan\u2011Cooled Power Supply if:<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#FAQs\" >Perguntas frequentes<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Is_a_fanless_power_supply_more_reliable_than_a_fan%E2%80%91cooled_model\" >Is a fanless power supply more reliable than a fan\u2011cooled model?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Can_a_fanless_power_supply_be_used_in_a_sealed_enclosure\" >Can a fanless power supply be used in a sealed enclosure?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#How_much_airflow_does_a_fan%E2%80%91cooled_power_supply_require\" >How much airflow does a fan\u2011cooled power supply require?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Which_option_is_better_for_industrial_control_cabinets\" >Which option is better for industrial control cabinets?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Does_a_cooling_fan_shorten_power_supply_lifespan\" >Does a cooling fan shorten power supply lifespan?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#How_does_enclosure_temperature_affect_power_supply_performance\" >How does enclosure temperature affect power supply performance?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.wehopower.com\/pt\/news\/fanless-vs-fan-cooled-power-supply-which-fits-your-enclosure\/#Conclusion\" >Conclus\u00e3o<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Introduction\"><\/span><strong><b>Introdu\u00e7\u00e3o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Honestly, when you&#8217;re picking a power supply for a server rack or equipment chassis, the cooling design is one of the most crucial decisions you&#8217;ll make. Most procurement teams only focus on voltage and power specs, often overlooking the cooling design\u2014which can easily lead to noise issues, dust damage, or premature hardware failures.<\/p>\n<p>In industrial and electronics projects, there are mainly two types of power supplies: fanless power supplies and air-cooled power supplies. The cooling method you choose will affect your device&#8217;s performance, lifespan, and the environments it can operate in. This article will compare fanless and air-cooled power supplies, explain their key differences, and help you pick the hardware that best fits your actual chassis setup.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_a_Fanless_Power_Supply_vs_a_Fan%E2%80%91Cooled_Power_Supply\"><\/span><strong><b>O que \u00e9 um <a href=\"https:\/\/www.wehopower.com\/pt\/products\/\" target=\"_blank\" rel=\"noopener\">Fanless Power Supply<\/a> vs a Fan\u2011Cooled Power Supply?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Fanless power supplies have no built-in fans at all. They rely on metal casings, heat sinks, and mechanical design for passive cooling. When in use, they\u2019re very quiet and have no moving parts.<\/p>\n<p>Power supplies with fans, on the other hand, have internal cooling fans. This active cooling method can push out hot air and pull in cooler ambient air under heavy loads, helping with heat dissipation.<\/p>\n<p>Both are common power supply options for cases, but their design logic and suitable use cases are actually pretty different.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Fanless_vs_Fan%E2%80%91Cooled_Power_Supplies_Key_Differences\"><\/span><strong><b>Fanless vs Fan\u2011Cooled Power Supplies: Key Differences<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<figure id=\"attachment_17763\" aria-describedby=\"caption-attachment-17763\" style=\"width: 1536px\" class=\"wp-caption alignnone\"><a href=\"https:\/\/www.wehopower.com\/pt\/products\/\" target=\"_blank\" rel=\"noopener\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-17763 size-full\" title=\"WEHO AD-155 security power supply installed with fused 12V camera output wiring\" src=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-48.png?quality=85&strip=all\" alt=\"WEHO AD-155 security power supply installed with fused 12V camera output wiring\" width=\"1536\" height=\"1024\" srcset=\"https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-48.png?quality=85&strip=all 1536w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-48-300x200.png?quality=85&strip=all 300w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-48-1024x683.png?quality=85&strip=all 1024w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-48-768x512.png?quality=85&strip=all 768w, https:\/\/i1.wp.com\/www.wehopower.com\/wp-content\/uploads\/2026\/09\/04-installation-48-18x12.png?quality=85&strip=all 18w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/><\/a><figcaption id=\"caption-attachment-17763\" class=\"wp-caption-text\">04 installation 48<\/figcaption><\/figure>\n<p>There&#8217;s one thing many buyers tend to forget: in actual use, the hardware differences between fanless power supplies and fan-cooled ones are pretty significant.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Cooling_method\"><\/span><strong><b>M\u00e9todo de resfriamento<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Fanless power supplies use passive cooling. Heat is transferred through conduction and natural air convection, and there are no moving parts inside.<\/p>\n<p>Power supplies with fans use active cooling. The internal fan spins automatically, increasing airflow and carrying away the heat.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Heat_dissipation_capability\"><\/span><strong><b>Heat dissipation capability<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Devices with fan cooling have stronger heat dissipation. When the power supply runs at full load continuously, the active fan can effectively prevent overheating.<\/p>\n<p>Fanless devices have relatively mild heat dissipation. They work reliably under stable, moderate loads, but are not really suited for continuous high-power operation.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Power_density\"><\/span><strong><b>Power density<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Fan-cooled power supplies can deliver higher power output in the same volume. Thanks to their excellent cooling performance, manufacturers can achieve higher power density in industrial applications.<\/p>\n<p>Passive cooling imposes strict limits on fanless power supplies, so the power of a single unit is usually lower, and the hardware design is more conservative and stable.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Noise_level\"><\/span><strong><b>Noise level<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The biggest advantage of fanless hardware is zero operational noise. Fanless power supplies are perfect for work environments that are sensitive to noise.<\/p>\n<p>Fan-driven power supplies generate low-level noise because of the fan running. Over long periods of operation, this noise becomes more noticeable.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Dust_moisture_resistance\"><\/span><strong><b>Dust &amp; moisture resistance<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>No fans or vents \u2014 fanless power supplies can block dust, moisture, and tiny debris more effectively. They&#8217;re really well sealed.<\/p>\n<p>Power supplies with fans need vents to keep air flowing. Dust and humid air get in with the airflow, slowly causing internal contamination.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Maintenance_requirements\"><\/span><strong><b>Maintenance requirements<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Fanless power supplies don&#8217;t have any vulnerable moving parts; once installed, they hardly need any maintenance. On the other hand, air-cooled power supplies with fans gather dust over time. Operators need to clean the fan parts regularly to prevent reduced cooling and the fan from getting stuck.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Lifespan_reliability\"><\/span><strong><b>Lifespan &amp; reliability<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Free from fan wear and dust corrosion, fanless power supplies have a longer lifespan and more stable long-term performance.<\/p>\n<p>The fan is the main wear-and-tear component of the entire power supply. Running for a long time can cause the fan to age, slightly shortening the overall life of the device.<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"33.3200%\"><strong><b>Evaluation Item<\/b><\/strong><\/td>\n<td width=\"33.3200%\"><strong><b>Fanless Power Supply<\/b><\/strong><\/td>\n<td width=\"33.3200%\"><strong><b>Fan-Cooled Power<\/b><\/strong><br \/>\n<strong><b>Supply<\/b><\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"33.3200%\">Cooling Type<\/td>\n<td width=\"33.3200%\">Passive heat-sink \/ shelldissipation<\/td>\n<td width=\"33.3200%\">Active fan forced-aircooling<\/td>\n<\/tr>\n<tr>\n<td width=\"33.3200%\">Heat dissipationperformance<\/td>\n<td width=\"33.3200%\">Medium-good for<br \/>\nmedium-load<\/td>\n<td width=\"33.3200%\">Strong, fit for long-termfull load<\/td>\n<\/tr>\n<tr>\n<td width=\"33.3200%\">Barulho<\/td>\n<td width=\"33.3200%\">Zero running noise<\/td>\n<td width=\"33.3200%\">Continuous low fannoise<\/td>\n<\/tr>\n<tr>\n<td width=\"33.3200%\">Dust &amp; moistureresistance<\/td>\n<td width=\"33.3200%\">Excellent (no ventilationholes)<\/td>\n<td width=\"33.3200%\">Poor, air holes bring indust &amp; moisture<\/td>\n<\/tr>\n<tr>\n<td width=\"33.3200%\">Manuten\u00e7\u00e3o<\/td>\n<td width=\"33.3200%\">Zero maintenance<\/td>\n<td width=\"33.3200%\">Need regular fancleaning<\/td>\n<\/tr>\n<tr>\n<td width=\"33.3200%\">Service life<\/td>\n<td width=\"33.3200%\">Longer, no wearing fan<br \/>\nparts<\/td>\n<td width=\"33.3200%\">Shorter, fan is mainwearing component<\/td>\n<\/tr>\n<tr>\n<td width=\"33.3200%\">Best-fit enclosure<\/td>\n<td width=\"33.3200%\">Sealed \/ semi-sealed<br \/>\ncabinet<\/td>\n<td width=\"33.3200%\">Ventilated cabinet withair inlet\/outlet<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Why_Does_the_Enclosure_Matter\"><\/span><strong><b>Why Does the Enclosure Matter?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Interestingly, your case itself determines the working space for your power supply\u2014it directly limits what kind of PSU cooling options you can actually use.<\/p>\n<p>Different cases vary a lot in terms of sealing, internal space, and how heat builds up.<\/p>\n<p>A sealed case has almost no airflow with the outside. If you put an air-cooled PSU in such a case, the hot air can\u2019t escape; heat will keep building up and could eventually trigger an automatic shutdown due to overheating.<\/p>\n<p>Cases with pre-installed ventilation holes work really well with fan cooling hardware. They help promote airflow and make the most of active cooling.<\/p>\n<p>When choosing a power supply, you have to start by considering the physical structure of the case.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Fanless_vs_Fan%E2%80%91Cooled_Which_One_Fits_Your_Enclosure\"><\/span><strong><b>Fanless vs Fan\u2011Cooled: Which One Fits Your Enclosure?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Choose_Fanless_Power_Supply_if\"><\/span><strong><b>Choose Fanless Power Supply if:<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Your casing is fully sealed or semi-sealed, with no vents.<\/li>\n<li>Your work environment requires low noise or completely silent operation.<\/li>\n<li>The operating space has a lot of dust, moisture, or fine particles.<\/li>\n<li>You want minimal daily maintenance while ensuring long-term stable use.<\/li>\n<li>The power runs under moderate, stable load conditions.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Choose_Fan%E2%80%91Cooled_Power_Supply_if\"><\/span><strong><b>Choose Fan\u2011Cooled Power Supply if:<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<ul>\n<li>Your case has vents, which can keep good airflow.<\/li>\n<li>The power supply needs to run at full load for a long time and provide high power.<\/li>\n<li>Onboard components generate a lot of heat and need to be cooled quickly.<\/li>\n<li>For your project, a little fan noise is acceptable.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"FAQs\"><\/span><strong><b>Perguntas frequentes<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Is_a_fanless_power_supply_more_reliable_than_a_fan%E2%80%91cooled_model\"><\/span><strong><b>Is a fanless power supply more reliable than a fan\u2011cooled model?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Generally speaking, yes. Fanless power supplies don&#8217;t have fan hardware that can easily break, which helps avoid dust buildup and makes the internal structure more stable. If used for a long time, they also tend to have a lower failure rate.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Can_a_fanless_power_supply_be_used_in_a_sealed_enclosure\"><\/span><strong><b>Can a fanless power supply be used in a sealed enclosure?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Absolutely. This is the best choice for a closed case. Its passive cooling doesn&#8217;t rely on airflow, so the heat inside a closed case won&#8217;t affect its performance.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_much_airflow_does_a_fan%E2%80%91cooled_power_supply_require\"><\/span><strong><b>How much airflow does a fan\u2011cooled power supply require?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>A fan-cooled power supply needs at least some natural airflow. Your case has to have dedicated intake and exhaust vents. A completely sealed case will trap heat, which can trigger the over-temperature protection circuit.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Which_option_is_better_for_industrial_control_cabinets\"><\/span><strong><b>Which option is better for industrial control cabinets?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Most standard enclosed industrial control cabinets usually use fanless power supplies for better stability and dust protection. For open-vent industrial cabinets used in high-load operations, a fan-cooled version can be used.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Does_a_cooling_fan_shorten_power_supply_lifespan\"><\/span><strong><b>Does a cooling fan shorten power supply lifespan?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>It&#8217;s kind of like that. The fan is the only moving part in this device. Running it for a long time, dust buildup, and material aging can all reduce its cooling performance, which indirectly shortens the overall lifespan of the power supply.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"How_does_enclosure_temperature_affect_power_supply_performance\"><\/span><strong><b>How does enclosure temperature affect power supply performance?<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>The higher the temperature inside the case, the lower the power supply efficiency, which adds heat stress and makes it easier to trigger over-temperature protection. Fanless and air-cooled PSUs work best in a cool, dry case environment.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong><b>Conclus\u00e3o<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Whether you choose a fanless power supply or a fan-cooled power supply depends on the type of case, the operating environment, and your load requirements. Fanless power supplies are almost silent, dustproof, maintenance-free, and highly reliable\u2014perfect for closed cabinets, quiet workplaces, or dusty and harsh environments. On the other hand, fan-cooled power supplies offer better cooling and higher power density, making them suitable for ventilated cabinets and long-term heavy-duty industrial use. Knowing the different cooling methods and choosing the right power supply based on your case\u2019s physical characteristics can help prevent overheating, noise issues, and equipment damage, keeping the whole system running smoothly over the long term. <a href=\"https:\/\/www.wehopower.com\/pt\/contact\/\" target=\"_blank\" rel=\"noopener\">Inquiry Now\uff01<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>This article will compare fanless and air-cooled power supplies, explain their key differences, and help you pick the hardware that best fits your actual chassis setup.<\/p>","protected":false},"author":4,"featured_media":18197,"parent":0,"menu_order":68,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_joinchat":[],"footnotes":""},"news_category":[149,148],"class_list":["post-16933","news","type-news","status-publish","format-standard","has-post-thumbnail","hentry","news_category-blog","news_category-industry-news","entry"],"acf":[],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/news\/16933","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/news"}],"about":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/types\/news"}],"author":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/comments?post=16933"}],"version-history":[{"count":8,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/news\/16933\/revisions"}],"predecessor-version":[{"id":18202,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/news\/16933\/revisions\/18202"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/media\/18197"}],"wp:attachment":[{"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/media?parent=16933"}],"wp:term":[{"taxonomy":"news_category","embeddable":true,"href":"https:\/\/www.wehopower.com\/pt\/wp-json\/wp\/v2\/news_category?post=16933"}],"curies":[{"name":"wp ent\u00e3o","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}