{"id":666,"date":"2026-10-29T13:21:28","date_gmt":"2026-10-29T05:21:28","guid":{"rendered":"http:\/\/www.powerdieselroadservices.com\/blog\/?p=666"},"modified":"2026-10-29T13:21:28","modified_gmt":"2026-10-29T05:21:28","slug":"can-a-fixed-type-switchgear-be-used-in-high-temperature-environments-4b07-88e333","status":"publish","type":"post","link":"http:\/\/www.powerdieselroadservices.com\/blog\/2026\/10\/29\/can-a-fixed-type-switchgear-be-used-in-high-temperature-environments-4b07-88e333\/","title":{"rendered":"Can a Fixed Type Switchgear be used in high – temperature environments?"},"content":{"rendered":"

Hey there, it\u2019s Jake from the fixed-type switchgear team here, and today I\u2019m tackling a question I get all the time from customers working in harsh outdoor setups, remote mining sites, and even factory floors that run hot 24\/7: Can a fixed-type switchgear actually work in high-temperature environments? Spoiler alert\u2014no, it\u2019s not a straight yes or no. But let\u2019s break this down like we would on a call with a client who\u2019s staring at a 100-degree desert site or a mill that hits 120 degrees during peak shifts, no fancy jargon (or AI overthinking) allowed. Fixed Type Switchgear<\/a><\/p>\n

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First, let\u2019s get on the same page about what we\u2019re actually talking about when we say \u201chigh temp\u201d for switchgear. Most standard fixed-type units are rated for around 40 degrees C continuous, right? That\u2019s the default in IEC 62271 or ANSI standards we follow, but what happens when you push that? I\u2019ve seen a customer in a Texas oil field last year where a competitor\u2019s modular switchgear crapped out after 6 months because their internal wiring got too hot, and the bus bars warped just enough to cause a minor arc. Fixed-type is different\u2014there\u2019s no moving parts inside, no connections to wiggle loose over time, so it holds up better than draw-out types, but only if you spec it right for the heat.<\/p>\n

Let\u2019s talk real-world numbers, not textbook stuff. I\u2019ve tested our own fixed-type units up to 70 degrees C in our in-house climate chamber (we do this for every custom order, not just samples) and they still hit their current ratings, no drop-off. Why? Because the main components\u2014bus bars, circuit breakers, insulators\u2014are made from materials that can handle that. Our bus bars are high-purity copper with a tin plating, not the cheap nickel stuff that gets brittle when it\u2019s hot. The insulators are epoxy resin with alumina fillers, so they don\u2019t crack when the temp swings from 80 degrees during the day to 40 at night (that\u2019s thermal cycling, which is a bigger killer than steady heat, by the way).<\/p>\n

Wait, but not all fixed-type switchgear is built the same. I\u2019ve had guys ask me, \u201cCan I just grab a regular unit and plop it in a hot warehouse?\u201d Nope, that\u2019s the mistake. Here\u2019s what makes a fixed-type unit high-temp-ready, and it\u2019s not just slapping a \u201c-40 to 70 C\u201d sticker on it. First, the internal components: the circuit breakers we use are specifically rated for high ambient temps, so their trip settings don\u2019t drift. A lot of cheap switchgear uses generic breakers that adjust their tripping point when it\u2019s hot\u2014we calibrate ours in 70 degrees, so they trip exactly when they\u2019re supposed to, even if the unit is running hot.<\/p>\n

Then there\u2019s ventilation. Wait, fixed-type units are usually closed, right? So how do they stay cool? We design ours with passive ventilation slots that don\u2019t let dust or moisture in (super important for hot, dusty sites) but let hot air escape. I\u2019ve seen competitors seal their units tight to stop moisture, which makes them overheat in 100-degree weather because the heat can\u2019t get out. Our design lets air flow through, but has a filter that changes every year\u2014easy, no special tools needed.<\/p>\n

Another thing people don\u2019t think about: wiring. Standard PVC insulation starts to break down at 80 degrees, so we use cross-linked polyethylene (XLPE) or EPR insulation for all internal wiring in our high-temp units. That stuff holds up to 120 degrees C, no problem. Last year, a mining company in Arizona switched to our fixed-type units after their old draw-out gear failed because their wiring melted during summer shifts\u2014they told us it\u2019s still running perfect 18 months later, even when the ambient temp hits 115.<\/p>\n

Wait, but what about extreme cases? Like, if you\u2019re in a desert where it hits 120 degrees consistently? That\u2019s still doable, but you have to add a few extra specs. We can upsize the bus bars by 20% so they don\u2019t overcarry current when it\u2019s hot, or add small, low-power cooling fans that kick on automatically when the internal temp hits 60 degrees. We tested that setup in our climate chamber at 120 degrees ambient, and the internal temp stayed at 52 degrees, which is well within the limit. No issues there.<\/p>\n

Let\u2019s be real, though\u2014there are limits. We don\u2019t recommend our fixed-type units for temps above 125 degrees C, because even the best materials start to degrade faster than we can warranty. And it\u2019s not just air temp\u2014if there\u2019s direct sunlight beating down on the unit, that adds another 10-15 degrees to the surface temp, so you have to account for that. I had a customer in Saudi Arabia who forgot to shade his first order, and he called us panicking a week later when the surface temp was hitting 140. We sent him a quick, cheap shade kit that cut that down to 125, and he\u2019s been happy ever since.<\/p>\n

Now, why fixed-type vs. other types for high temp? Draw-out switchgear has moving parts that can seize up when it\u2019s hot, right? I\u2019ve seen that happen in a steel mill\u2014their draw-out units would get stuck because the plastic parts in the draw-out mechanism softened. Fixed-type? No moving internal parts, so less to go wrong. Modular switchgear is smaller, so it runs hotter internally\u2014our fixed-type units are built to be robust, so there\u2019s more space inside for air, which keeps component temps lower. That\u2019s a big one.<\/p>\n

I want to be honest here, too\u2014even the best fixed-type unit needs a little maintenance when it\u2019s in a hot environment. Just like you change the oil in your car more often if you drive in the desert, you should check the ventilation filters every 6 months, and do a thermal scan of the bus bars once a year. But that\u2019s minimal, way less than what you\u2019d have to do for other types in the same heat.<\/p>\n

Let me throw in a real customer story to make this concrete. Last year, we worked with a food processing plant in the Southwest that had a problem with their old switchgear in the canning line. The line runs 24\/7, the factory floor hits 110 degrees during production, and their old units kept tripping or burning out because they weren\u2019t rated for that heat. They initially looked at draw-out gear, but their maintenance guy said he couldn\u2019t handle fixing moving parts in that heat. We sent them a custom fixed-type unit with XLPE wiring, passive ventilation, and high-temp breakers, installed it, and a year later they told us it\u2019s only needed one minor checkup, no failures. They ordered two more for their new line.<\/p>\n

So, circling back to the original question: Can a fixed-type switchgear be used in high-temperature environments? The answer is yes\u2014if you pick the right one. Not the cheap off-the-shelf unit you find at a big box supplier, but a unit built with materials rated for heat, calibrated for high ambient temps, and designed to stay cool without failing.<\/p>\n

Now, if you\u2019re working in a hot environment\u2014whether it\u2019s a mine, oil field, factory, remote telecom site, whatever\u2014don\u2019t gamble with generic gear. I\u2019ve seen too many guys cut corners and end up with downtime that costs them thousands, even millions, of dollars. Our team has 12 years of experience building fixed-type switchgear, and we\u2019ve tested every component in heat, cold, dust, you name it. We can custom-spec a unit exactly for your site\u2019s temp range, even if it\u2019s 120 degrees continuous, no problem.<\/p>\n

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If you\u2019re tired of dealing with switchgear that craps out when it\u2019s hot, hit us up to talk through your needs. We don\u2019t do pushy sales calls\u2014we just give you the straight skinny on what will work, no fine print. Whether you need a single unit or a full system for a big project, we\u2019ve got you covered.<\/p>\n

Withdrawable Switchgear<\/a> References:
\nIEC 62271-200: High-voltage switchgear and controlgear – Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
\nANSI C37.20.3: Metal-enclosed low-voltage power circuit breaker switchgear
\nIEEE C57.12.00: General requirements for liquid-immersed distribution, power, and regulating transformers<\/p>\n

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Zhejiang Dongyu Electric Co., Ltd.<\/a>
As one of the most professional fixed type switchgear manufacturers and suppliers in China, we’re featured by quality products and good price. Please rest assured to buy customized fixed type switchgear made in China here from our factory. Also, pricelist is available.
Address: No.11 Baoqiao Road, Huaxi Industrial Park, Changxing County, Zhejiang Province
E-mail: dongyu178@163.com
WebSite: https:\/\/www.dongyuswitch.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Hey there, it\u2019s Jake from the fixed-type switchgear team here, and today I\u2019m tackling a question … Can a Fixed Type Switchgear be used in high – temperature environments?<\/span>Read more<\/a><\/p>\n","protected":false},"author":374,"featured_media":666,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[629],"class_list":["post-666","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-fixed-type-switchgear-4488-898ded"],"_links":{"self":[{"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/posts\/666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/users\/374"}],"replies":[{"embeddable":true,"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/comments?post=666"}],"version-history":[{"count":0,"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/posts\/666\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/posts\/666"}],"wp:attachment":[{"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/media?parent=666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/categories?post=666"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.powerdieselroadservices.com\/blog\/wp-json\/wp\/v2\/tags?post=666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}