The five checks that separate an industrial Ethernet switch from a commercial one are operating temperature, enclosure and IP rating, power redundancy, surge protection on the Ethernet ports, and the certification paperwork behind them. If the switch lives in a sealed outdoor cabinet, on a factory floor or in an unconditioned substation, all five matter and only an industrial switch passes. If it sits in an air-conditioned rack room and never sees a temperature swing, a commercial switch is the cheaper and entirely correct answer. This guide runs the five checks in order, gives you the numbers to write into the specification, and shows which Winsure models meet each one.
The five checks before you buy
Run them in this order. The first check eliminates most of the wrong answers, and the last two are where cheap switches quietly fail a tender.
Check 1 — Operating temperature: the number that decides most projects
This is a wide temperature Ethernet switch requirement, and it is the single most common reason a project comes back to us after a failed first attempt. The ranges in the Winsure switch range are:
· Managed industrial: −40 °C to 75 °C. The fully managed and basic managed DIN-rail models, including the PoE models.
· Unmanaged industrial: −20 °C to 65 °C. The fanless DIN-rail models without PoE.
· Commercial: −10 °C to 65 °C. Desktop and rack-room models, including the high-port-count PoE chassis.
The number that matters is not the average temperature of the country. It is the daily swing inside the cabinet. A sealed cabinet in Malaysia, the Gulf or northern Chile can reach 65–70 °C inside at midday and fall close to ambient overnight. A −10 ~ 65 °C part is already at the top of its envelope at noon and then takes a full thermal cycle every single day, which is hardest on the parts that fail first: electrolytic capacitors, solder joints and connector plating.
So write the design minimum and maximum ambient into the specification, not the room temperature, and not the country. Then check whether the cabinet is shaded or in direct sun — an unmanaged industrial unit at −20 ~ 65 °C is fine in a shaded, low-heat cabinet, but not behind a panel that faces the afternoon sun.
Check 2 — Enclosure rating and where it mounts
Two separate questions get asked as one. First the enclosure, then the mounting.
Enclosure. Industrial models use an IP40 aluminium alloy case. Commercial models use an IP30 metal case. Neither is waterproof, and it is worth being precise about what the digits mean, because “IP40” gets sold as if it meant weatherproof:
| Rating | Solids | Water |
|---|---|---|
| IP30 | Protected against solid objects larger than 2.5 mm — tools and thick wires | Not protected |
| IP40 | Protected against solid objects larger than 1 mm — thin wires | Not protected |
In practice both families live inside an enclosure. The IP rating protects the switch from dust ingress and from finger or tool contact while you are working in the cabinet. It is not a licence to hang the switch on a fence post.
Mounting: DIN-rail, desktop, or rack. This is the practical half of the DIN-rail switch vs rack mount question. The industrial range mounts on a 35 mm DIN-rail, and the managed industrial models also list desktop placement. The commercial range is a desktop or shelf unit. The real decision is not which rail standard you prefer — it is where the switch is going to live:
· Inside an equipment cabinet, a combiner box or a pole-mounted enclosure, DIN-rail is the only practical answer: you clip the device onto a rail instead of adding rack rails to an enclosure that has none, and you can swap a unit in minutes without dismantling anything.
· Inside a rack room, a desktop or shelf unit is fine and the rack is usually already populated by other equipment.
· If your project specifically calls for 19-inch rack mounting, put it in the tender documents and tell us the enclosure. Mounting arrangements vary by project and we will confirm in writing what suits yours.
Also check the dimensions against the space you actually have. The managed industrial models in this range run from 129 × 94 × 37 mm up to 162 × 139 × 64 mm, and a 24-port commercial PoE chassis is 310 × 210 × 45 mm — that is a different order of footprint.
Check 3 — Power: redundancy and a wide DC input
Industrial cabinets do not offer a clean 5 V wall supply. Expect a DC bus with transients on it, and expect one feed to be less reliable than the other.
· Managed industrial models take a wide DC input — DC 12–55 V on the fully managed models, and DC 48 V on the basic managed models — with dual power-supply redundancy, reverse-polarity protection and built-in overcurrent protection (4.0 A).
· Unmanaged industrial models take DC 12–52 V on a single input.
· Commercial models use a built-in AC supply.
Redundancy is the check people skip and later regret. On a plant where the network carries both CCTV and control traffic, a single feed failure should not take the network down with it — and a dual-supply input is the cheapest redundancy you will ever buy.
Check 4 — Surge protection on the Ethernet ports
A 120 m camera run, or a copper link between two cabinets, behaves like an antenna for induced lightning surge. That is why the industrial range protects the ports, not just the power input:
· 4 kV surge protection on the Ethernet ports, on the industrial range.
· Power-port surge rating of 5,000 A on an 8/20 µs waveform.
· Immunity to IEC(EN) 61000-4-2 (ESD), -4-3 (radiated RF), -4-4 (EFT), -4-5 (surge), -4-6 (conducted RF) and -4-8 (magnetic field) at Level 3, with Level 4 available on request for exposed sites. Common-mode conduction is rated 30 V continuous, 300 V for 1 s.
· Emissions to FCC Part 15 Subpart B Class A and EN 55022 Class A.
· Mechanical to IEC 60068-2-27 (shock), IEC 60068-2-32 (free fall) and IEC 60068-2-6 (vibration).
On a commercial switch the Ethernet-port surge rating is normally not specified at all. If your copper leaves the cabinet, that is the difference between a protected port and a truck roll.
Check 5 — Certifications, and how to read the paperwork
This is the check where a buyer is most likely to be shown a logo instead of a document. Here is what the Winsure range actually holds, and what each document does and does not prove.
| Document | What is on file | What it proves |
|---|---|---|
| CE | EMC and LVD test reports, e.g. PRSZ25031309ER (CE-EMC) and PRSZ25031309SC / PRSZ25031309SR (CE-LVD) | That the sample was tested to the harmonised standards; CE itself is the manufacturer’s declaration of conformity, not a certificate issued by a third party |
| FCC | VoC and SDoC report, e.g. PRSZ25031310EC / PRSZ25031310ER | Compliance with the FCC emissions requirements for the tested configuration |
| RoHS | RoHS report, e.g. PRSZ19041001C | Restricted-substance compliance of the product |
| UL | UL 62368-1, 3rd Edition (certificate UL-US-2419065-0) and the Canadian equivalent CSA C22.2 No. 62368-1:19 (certificate UL-CA-2415452-0); the certificate on file covers model wsCom3028-4SFP4+-24G/ACU | Third-party safety certification to the named standard — for the specific models listed on the certificate’s addendum, so always ask which models your order falls under |
| TÜV SÜD | Attestation of Compliance N5A 125189 0001 for electrical safety of equipment below 50 V AC / 75 V DC | A voluntary third-party attestation of the electrical safety standards for the sample submitted. It is not the CE marking and does not by itself authorise it |
| ISO | ISO 9001, ISO 14001 and ISO 45001 | That the factory’s quality, environmental and occupational-health management systems are certified — a different claim from the safety of one switch |
The habit worth building: for every certificate you are shown, ask for the certificate number, the standard number, the models covered and the issue date. A certificate with a model list is evidence. A logo in a footer is marketing.
Industrial vs commercial Ethernet switch: the full comparison
Here is the whole comparison on one page — the table to keep next to the tender documents.
| Check | Commercial switch | Industrial switch |
|---|---|---|
| Operating temperature | −10 °C to 65 °C | −40 °C to 75 °C (managed); −20 °C to 65 °C (unmanaged DIN-rail) |
| Thermal design | Fan-assisted where needed | Natural convection, fanless |
| Enclosure | IP30 metal case | IP40 aluminium alloy |
| Mounting | Desktop or shelf | 35 mm DIN-rail; desktop also listed on managed models |
| Surge protection, Ethernet ports | Not normally specified | 4 kV on every port |
| Surge protection, power port | Not normally specified | 5,000 A (8/20 µs waveform) |
| Input power | Built-in AC supply | DC 12–55 V, or DC 48 V on the basic managed models |
| Power redundancy | Single supply | Dual-supply redundancy, reverse polarity, 4.0 A overcurrent protection |
| EMC immunity | Not normally published | IEC(EN) 61000-4-2/-3/-4/-5/-6/-8 at Level 3, Level 4 optional |
| Emissions | Varies by model | FCC Part 15 Subpart B Class A, EN 55022 Class A |
| Mechanical | Not normally published | IEC 60068-2-27 / -32 / -6 |
| MTBF | Rarely published | 300,000 hours |
| Warranty | 1 year typical | 3–5 years |
| Certifications | CE, FCC, RoHS | CE, FCC, RoHS, plus UL 62368-1 on the covered models |
| Cost | Lower | Higher |
Figure 1 — The same job, two different operating envelopes: what each environment demands, and the five checks side by side.
When a commercial switch is enough — and when it is not
This is the part that actually saves money. Buying industrial everywhere is safe but expensive; buying commercial everywhere is cheap until the first cabinet bakes.
Where a commercial switch is the right, cheaper answer
· An air-conditioned rack room, control room or office that holds a stable 20–25 °C all year. The temperature check simply does not bite here.
· Short patch runs inside the same room. If no copper leaves the building, the surge check does not bite either.
· A clean AC supply from a UPS. No DC bus, no transients, no need for a wide DC window.
· Ordinary enclosure expectations. The unit sits on a shelf or in a cabinet that is already protected, so IP30 is sufficient.
· High PoE port counts at low ambient. If you need 24 PoE ports and the room is air-conditioned, a commercial chassis is the cheapest way to get there.
Typical fits: the plant control room, an office extension, an aggregation point next to the server rack, or a project where every switch is inside a conditioned building.
Where industrial is mandatory
· Sealed outdoor cabinets: combiner boxes, inverter cabinets, pole-mounted and pad-mounted enclosures.
· Factory floor and workshop areas with dust, vibration, or washdown.
· Unconditioned substations and kiosks, in hot or cold climates.
· Any copper run that leaves a cabinet. The moment the cable goes outdoors, the surge rating stops being optional.
· Any site where a truck roll costs more than the switch. On dispersed sites, the maintenance trip is the real cost, and the MTBF and the surge rating are what reduce the number of trips.
The mixed case that catches people out
Most failed specifications we see are not commercial-versus-industrial. They are a project that needs PoE and heat tolerance in the same box, and picks a high-port-count PoE chassis that happens to be commercial grade.
In the Winsure range the two families split like this:
· The managed industrial models are both wide-temperature and PoE-capable — −40 ~ 75 °C with PoE+ 802.3af/at, up to 8 RJ45 ports and up to 4 fiber ports. These are the models for a sealed cabinet that also powers cameras.
· The three high-port-count PoE chassis — the 24-port 400 W, the 16-port 200 W and the 8-port 120 W — are commercial grade, −10 ~ 65 °C (or −20 ~ 65 °C on the 8-port). They belong inside the climate-controlled substation, control room or a shaded, ventilated panel.
The Winsure industrial range, model by model
Winsure builds industrial and commercial Ethernet switches, optical transceivers and fiber accessories in its own factory in Shenzhen, where it has run OEM and ODM production for overseas partners since 2016. Twenty switch models and fourteen transceiver models are held in stock, and CE, FCC and RoHS certificates ship with each batch. The company holds ISO 9001, ISO 14001 and ISO 45001.
The industrial-grade switch range splits into managed industrial switches and unmanaged industrial switch series.
Managed industrial — wide temperature and PoE, for the cabinet that does both
| Model | Ports | Where it fits |
|---|---|---|
| wsCom1005LG-2GSFP-4G/DC-INT | 2 fiber + 4 × 1000M RJ45, PoE+ DC 48 V, 60 W | Smallest managed industrial PoE unit — 129 × 94 × 37 mm. Dual redundant DC inputs. For a tight cabinet feeding a handful of cameras |
| wsCom3010LG-2GSFP-8G/DC-INT | 2 fiber + 8 × 1000M RJ45, PoE+ DC 48 V, 120 W | Basic managed, 8 PoE ports, 159 × 110 × 47 mm. The workhorse for a cabinet with several cameras and a gateway |
| wsCom3010G-2GSFP-8G/DC-INT | 2 fiber + 8 × 1000M RJ45, PoE+ DC 12–55 V | Fully managed, 8 PoE ports, 159 × 110 × 47 mm. Choose this when you need the full management feature set and a wide DC window |
| wsCom3028G-4GSFP-8G/DC-INT | 4 fiber + 8 × 1000M RJ45, PoE+ DC 12–55 V | Fully managed with four fiber ports, so it can carry east and west ring uplinks and still have fiber left for a branch. 162 × 139 × 64 mm |
All four are −40 ~ 75 °C, IP40 aluminium, fanless, 35 mm DIN-rail, 4 kV on the Ethernet ports, 5,000 A on the power port, dual-supply DC input, 300,000 h MTBF and a 3–5 year warranty.
Unmanaged industrial — the cheapest correct answer at the edge
| Model | Ports | Where it fits |
|---|---|---|
| wsCom1005-5G/DC-INT | 5 × 1000M RJ45 | Small sensor, tracker or camera cluster with nothing to configure. 116 × 80 × 30 mm |
| wsCom3010-8G/DC-INT | 8 × 1000M RJ45 | Same function, more ports. 143 × 75 × 30 mm |
| wsCom105-5TX/DC-INT | 5 × 100M RJ45 | 100 Mbps is plenty for Modbus and metering traffic. 116 × 80 × 30 mm |
| wsCom309-8TX/DC-INT | 8 × 100M RJ45 | The 8-port 100 Mbps unit for a dense sensor cabinet. 143 × 75 × 30 mm |
All four are −20 ~ 65 °C, aluminium, fanless, 35 mm DIN-rail and DC 12–52 V. They carry no PoE, which is why they belong where every device has its own supply.
Commercial — for the room that has air conditioning
These are the commercial switches in the range. All three are −10 ~ 65 °C except the 8-port unit at −20 ~ 65 °C, all use a metal case, and all take a built-in AC supply.
| Model | Ports | Where it fits |
|---|---|---|
| WS3028P-2GSFP-24G/AC-INT | 24 × 1000M PoE + 2 × SFP 400 W total, 30 W per port | The highest port count and PoE budget in the range, with a built-in AC supply. Substation building or control room, 310 × 210 × 45 mm |
| WS309P-1TXSFP-16TX2G/AC-INT | 16 × 100M PoE + 2 × 1000M + 1 fiber 200 W total | Camera-heavy panel inside a conditioned room, with a fiber uplink back to the ring. 270 × 181 × 44 mm |
| WS309P-1TXSFP-8TX-2G/AC-INT | 8 × 100M PoE + 2 × 1000M + 1 fiber 120 W total | The compact option, 190 × 135 × 36 mm. Eight PoE ports in a ventilated panel |
Pair any of these with industrial fiber optic media converters for the long runs, and fiber optic patch cords from the same order.
What to send us for a written quote
1.Where the switch will physically sit — indoor rack room, factory floor, sealed outdoor cabinet, or pole-mounted enclosure.
2.The design minimum and maximum ambient temperature, including whether the cabinet is shaded or in direct sun.
3.Port count and speed, plus how many spare ports you want.
4.The PoE device list with the wattage of each device, if you need PoE.
5.Uplink distance and the fiber connector type you already use, or whether this is a new run.
6.Whether the input is a DC bus or AC, and whether you need dual-supply redundancy.
7.Any copper run that leaves the enclosure, and its length.
8.Certifications required (CE, FCC, RoHS, UL) and any project-specific standard.
9.Quantity, target delivery date, and whether you need OEM or ODM branding.
Send it to info@cnwinsure.com or WhatsApp +86 134 2874 4818. An engineer replies with a written quote within 24 hours, and OEM or ODM production is available with your logo, your label and your carton.
Frequently asked questions
1.What is the main difference between an industrial and a commercial Ethernet switch?
The operating envelope, not the build quality. A commercial switch is rated −10 ~ 65 °C, uses an IP30 metal case that sits on a desktop or shelf, and takes a built-in AC supply. An industrial switch is rated −40 ~ 75 °C on the managed models and −20 ~ 65 °C on the unmanaged DIN-rail models, uses an IP40 aluminium alloy case on a 35 mm DIN-rail, is fanless, protects every Ethernet port to 4 kV, and runs on a wide DC input with dual-supply redundancy. The right question is not which one is better, but where the switch physically sits.
2.Can I use a commercial Ethernet switch in a sealed outdoor cabinet?
Not reliably. A sealed outdoor cabinet can reach 65–70 °C inside at midday and fall close to ambient overnight. A commercial switch rated −10 ~ 65 °C is at the top of its range at noon and takes a full thermal cycle every day, and its Ethernet ports normally carry no surge rating — even though the long outdoor copper runs are exactly what attracts induced surge. Use the commercial switch indoors and put an industrial model in the cabinet.
3.Is an IP40 switch waterproof?
No. IP40 means protection against solid objects larger than 1 mm and no protection against water at all. IP30 means protection against solid objects larger than 2.5 mm, also with no water protection. Both are indoor-enclosure ratings: the switch is meant to be mounted inside a sealed cabinet or an electrical enclosure, and the IP rating protects it from dust ingress and from tool or finger contact, not from rain.
4.What does 4 kV surge protection on Ethernet ports actually mean?
It means every copper Ethernet port is protected against a 4 kV surge, with IEC/EN 61000-4-5 Level 3 as the industrial baseline and Level 4 available on request for exposed sites. On the industrial range the power port is separately rated for 5,000 A on an 8/20 µs waveform. This matters because a 120 m camera run or an inter-cabinet copper link behaves like an antenna for induced lightning surge.
5.What certifications should I ask for before buying an industrial switch?
Ask for the certificate number, the standard number, the models covered and the issue date — not for a logo. For the Winsure industrial range: CE with EMC and LVD test reports, FCC with a VoC and an SDoC report, RoHS, and UL 62368-1 3rd Edition together with the Canadian equivalent CSA C22.2 No. 62368-1:19 on the models listed on the certificate. ISO 9001, ISO 14001 and ISO 45001 certify the factory’s management systems, which is a different claim from the safety of an individual switch.
6.Do I need a managed industrial switch, or is unmanaged enough?
If there is nothing to configure at that point in the network, unmanaged is enough and cheaper. Unmanaged industrial switches belong at sensor, tracker and small-cabinet level. Managed switches belong where you need VLAN separation between CCTV and control traffic, QoS, port mirroring and remote diagnostics — and where the switch is part of a ring that has to survive a single fiber cut.
Tell us where the switch sits and we will tell you which family it needs. Send the enclosure type, the ambient temperature range, the port count and the PoE load for one cabinet, and we will come back with a written quote within 24 hours — including the correct fiber modules and power supply, so nothing arrives missing.
Browse the industrial-grade switch range or learn more about Winsure.