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The Vietnam Electricity and New Energy Exhibition 2026 ran from 15 to 17 July. NOXT hosted booth 379, where the conversation centred on a problem that Southeast Asian operators know well: high humidity that turns into water inside outdoor electrical cabinets.

Why tropical climates make the problem sharper

In a tropical climate the cabinet never fully dries out. Daytime heat pushes moisture-laden air out through the seals, night-time cooling pulls fresh humid air back in, and condensation forms on busbars, terminals and relay contacts. The cycle repeats daily, so corrosion and tracking faults build up faster than in temperate regions.

What NOXT showed at booth 379

The stand presented cabinet dehumidifiers sized for compact and high-volume enclosures, AC and DC PTC cabinet heaters, thermostat-controlled fan heaters, filter fans for IP54 ventilation, and the thermostat, hygrostat and digital controller range that switches it all.

Visitors from utility and renewables companies asked for two things in particular: units that tolerate a heavy dust load, and control settings that keep energy use down when ambient humidity swings hard between the rainy and dry seasons.

Renewable energy across the region

Solar and energy storage visitors were a large share of booth traffic. Their cabinets sit outdoors for years, and rising humidity around PV combiner boxes and battery racks makes sealing alone insufficient. Several teams asked for a combined package: dehumidifier plus heater with one controller managing both.

Requests logged at booth 379 were followed up with sizing sheets and quotations after the show.

For cabinets in tropical or coastal conditions, send the enclosure size, internal load and site humidity range. We will return a condensation control specification for the site.

ELEKTRO 2026 ran from 8 to 10 June in Moscow, and NOXT hosted booth 4C060. Russian grid operators, panel builders and industrial contractors spent three days working through one question: how to keep electrical cabinets stable through a continental winter and a humid summer.

Heating and dehumidifying in one cabinet

Cold-climate cabinets face two opposite problems in the same enclosure. Winter drives internal temperatures below the dew point, so heaters carry most of the load. Summer humidity returns, and the same cabinet collects condensation on cold metal. The stand laid out both halves: AC and DC PTC cabinet heaters, combiner-type heating plates, thermostat-controlled fan heaters, plus semiconductor and high-power cabinet dehumidifiers.

Control gear tied the display together. Mechanical thermostats, electronic hygrostats and digital thermo-hygrostats let one cabinet switch both functions, which drew attention from visitors replacing separate controllers with a single unit.

What Russian visitors asked

Temperature range came up first. Visitors wanted to confirm operating limits for outdoor cabinets in regions where winter ambient drops far below what a standard heater curve assumes, and asked how the thermostat set point should be chosen for that climate.

Dust and sealing came second. Industrial sites in the region run high particulate loads, so filter fans and sealing strips were reviewed alongside dehumidifiers. Several panel builders asked how to retrofit heating into cabinets already installed on site, without drilling new holes in an IP-rated enclosure.

Local supply came third. Visitors asked about documentation language, spare part availability and lead time to Moscow, which shaped the commercial follow-up after the show.

Follow-up from Moscow

Enquiries logged at 4C060 were followed with sizing sheets, datasheets and quotations. Cabinets with both heating and dehumidification demand received a combined specification rather than two separate product lists.

For cold-climate or high-humidity cabinets, send the enclosure size, ambient range and target conditions. We will return a heating and dehumidification specification for the site.

SNEC 2026, the 19th International Solar Photovoltaic and Smart Energy Conference and Exhibition, ran from 3 to 5 June in Shanghai. NOXT hosted booth 8.1H-F113, where three days of talks centred on moisture control inside solar and storage enclosures.

Cabinet climate control for PV and storage

The stand carried the enclosure climate control range: semiconductor, split-type, smart grid and high-power cabinet dehumidifiers, AC and DC PTC cabinet heaters, combiner-type heating plates, IP54 filter fans, and the thermostat, hygrostat and digital controller line.

DC-powered units drew steady interest. Solar sites often supply control power straight from the panel or battery string, so equipment that runs on DC24V suits the installation without an extra converter.

What PV and storage teams asked

Combiner box and inverter cabinet owners described the same pattern: sealed enclosures that collect water after cool nights and lose insulation resistance over the following months. Their questions focused on sizing for small enclosures, since a combiner box holds far less air than an industrial control panel.

Battery container teams raised a harder problem. Large volumes, high internal load and a strict temperature window leave little room for error, and many asked how a dehumidifier interacts with the container HVAC rather than competing with it.

Follow-up from Shanghai

Requests logged at 8.1H-F113 were followed with sizing sheets and quotations after the show. Teams that supplied enclosure volume, ambient range and target humidity on the stand received a matched specification rather than a generic product list.

For solar, inverter or battery enclosures, send the cabinet volume, internal load and site conditions. We will return a climate control specification for the project.

EP Shanghai 2025 took place from 18 to 20 November at the Shanghai New International Expo Centre. NOXT exhibited at booth N4L02 in Hall N4, in the EPA-B zone, with the enclosure climate control range laid out for three days of technical discussion.

Products on display

The booth carried cabinet dehumidifiers for semiconductor, smart grid and high-power applications, AC and DC PTC cabinet heaters, comb-type heating plates, thermostat-controlled fan heaters, filter fans for IP54 cooling, and the full controller line: mechanical thermostats, electronic hygrostats and digital thermo-hygrostats.

Enclosure lighting, door-sensor LED strips, mounting brackets and waterproof sealing strips filled out the accessory wall, which gave visitors a way to solve the smaller mechanical questions on the same visit.

Who stopped by

Traffic came from three directions. Substation and distribution teams carried photos of corroded terminals and wanted to know which dehumidifier fits a given cabinet. Renewable energy visitors, working on PV combiner boxes and inverter cabinets, asked about DC-powered units that can run from the panel supply. Industrial panel builders were mostly interested in thermostats and heaters for cold-weather sites.

Technical conversations that carried over

Several discussions went past a product list. Integrators wanted to compare heater control by thermostat against continuous heating for energy cost. Others asked how filter fans interact with dehumidifiers when both are fitted to one enclosure. Those exchanges shaped the sizing notes we sent out after the show.

If you are specifying climate control for a substation, PV or industrial cabinet, send the cabinet volume, internal heat load and ambient range. We will reply with a matched specification.

EP Shanghai 2024 ran from 5 to 7 December at the Shanghai New International Expo Centre. NOXT took booth 4J68 in Hall N4, inside the energy storage zone, and spent three days talking about one problem with visitors: water inside electrical enclosures.

What drew traffic to the booth

The stand showed the full cabinet climate control line: semiconductor and high-power cabinet dehumidifiers, PTC and fan cabinet heaters, mechanical thermostats, electronic hygrostats and digital thermo-hygrostats, plus filter fans and enclosure lighting.

Most conversations started with a site problem. Energy storage integrators described condensation in battery cabinets after night-time temperature swings. Switchgear builders asked how to stop corrosion on busbars in coastal substations. A smaller group wanted to know how to cut the power bill from heaters that run all winter.

Three questions came up repeatedly. What capacity does a cabinet need, how is the set point chosen for a thermo-hygrostat, and how do the units mount without drilling new holes in an IP-rated enclosure.

Condensation control for energy storage

The energy storage zone gave the booth a constant stream of integrators working on racks and containerised systems. Their cabinets cycle between warm battery operation and cold ambient air, which is the exact condition that pulls moisture onto cold metal. The compact dehumidifier line drew the most attention there, with the DC units favoured for retrofit work.

Several visitors brought drawings and asked for sizing help on the spot. Those quotes were prepared after the show with cabinet volume, internal load and target humidity as the inputs.

Follow-up from the show

Every enquiry logged at 4J68 has been answered, and the sizing sheets requested on site were sent within the following week. For engineers who could not attend, the same technical material is available directly.

Send your cabinet dimensions, internal load and target humidity to our team, and we will return a climate control specification for your enclosure.

The 135th Canton Fair ran from 15 to 19 April 2024 in Guangzhou. NOXT hosted booth 16.3K10 in Area C, where the stand met buyers from Europe, the Middle East, Southeast Asia and South America across five days.

Products at booth 16.3K10

The stand presented the enclosure climate control range: semiconductor, split-type, smart grid and high-power cabinet dehumidifiers, AC and DC PTC cabinet heaters, comb-type heating plates, filter fans for IP54 cooling, and the full thermostat and hygrostat controller line.

Accessories filled the second display: door-sensor LED lighting, mounting brackets and waterproof sealing strips. Buyers who came for one product often left with a full cabinet list.

What overseas buyers asked

Export buyers bring a different set of questions to a trade fair. Three topics dominated the booth. Certification came first, with CE and RoHS documents requested on the spot for European and Middle Eastern projects. Sourcing terms came second, covering OEM and ODM options, minimum order quantities and private-label packing. Lead time came third, with buyers asking how fast a first container could ship.

A smaller group wanted technical support rather than products. Contractors with firm projects asked for cabinet sizing help, supplying enclosure volume, ambient temperature and target humidity on the stand.

Follow-up from Guangzhou

Every enquiry from 16.3K10 was logged with the buyer’s market and application, and quotations followed after the fair. Certification packs and sizing sheets requested at the booth were sent to buyers in the weeks after the show.

For export projects, send your cabinet specification and target market. We will return a product selection with the certification documents your market requires.