Airtac DMSE Electronic Sensor DMSE-N020-W
The AirTAC Airtac DMSE Electronic Sensor DMSE-N020-W is a genuine DMS magnetic position switch. It senses the magnet ring in a pneumatic cylinder's piston and signals when the piston reaches that point, giving a npn 3-wire output on 5-30 V DC with a 2 m flying lead. It only works on a cylinder that carries a piston magnet.
- TechnologyElectronic (solid-state)
- OutputNPN 3-wire
- Supply voltage5-30 V DC
- ProtectionIP64
- Profile (groove fit)E
- Lead / connector2 m flying lead
- VersionW
- RequiresMagnet-equipped cylinder
About the Airtac DMSE Electronic Sensor DMSE-N020-W
The DMSE-N020-W decodes as an AirTAC DMS electronic switch: E profile, NPN 3-wire output, 2 m flying lead, 5-30 V DC supply and IP64 as built. The trailing -W is a special suffix in AirTAC's ordering system whose definition is not in our published data - we treat the protection rating at the general IP64 and check what -W adds in the datasheet on request.
Like every switch here, it only produces a signal once it is clipped into a cylinder built with the magnet option. The NPN transistor output interfaces directly with a sinking PLC input, and the 2 m flying lead can be trimmed to the exact run length your panel needs - no coils of surplus cable left in the cabinet.
Airtac DMSE Electronic Sensor DMSE-N020-W Technical Specifications
| Model | Airtac DMSE Electronic Sensor DMSE-N020-W |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | NPN 3-wire |
| Outputs in this family | 2-wire, NPN 3-wire or PNP 3-wire |
| Lead / connector | 2 m flying lead |
| Supply voltage | 5-30 V DC |
|---|---|
| Protection rating | IP64 |
| Version | W - factory special code, confirm from datasheet |
| Profile letter | E (cylinder-groove fit) |
| Profiles in this family | E, G, H, J |
| Detects | Piston magnet ring inside the cylinder |
2-wire versions run 10-28 V DC; NPN / PNP 3-wire versions run 5-30 V DC. IP64 as standard. Order the RW version where coolant, washdown or constant cable flexing is present. Switching distance, response time, current rating, voltage drop, LED behaviour, contact life, weight and dimensions are not published in our data set — ask us and we will confirm from the factory datasheet.
Model Code: Airtac DMSE Electronic Sensor DMSE-N020-W
| DMS | Electronic cylinder switch — electronic (solid-state). |
|---|---|
| E | Profile letter: the mounting / groove type that fits a particular cylinder body. This family offers E, G, H, J. It is a fit code, not a performance grade. |
| N | Output: NPN 3-wire. Blank is 2-wire, N is NPN 3-wire, P is PNP 3-wire. |
| 020 | 2 m flying lead. 020 / 030 / 050 / 100 are 2 / 3 / 5 / 10 m flying leads; M08 and M12 are M8 / M12 connector versions. |
| W | W - factory special code, confirm from datasheet. |
We do not hold the full profile-to-cylinder-series table, so confirm the profile letter against your cylinder model before ordering — send us the cylinder part number and we will check the fit.
Which Family Do You Need?
- DMSElectronic, 2-wire / NPN / PNP, DC
- EMSMini electronic, 2-wire only, DC
- CMSReed contact, 2-wire, 5-240 V AC/DC
The split is electrical, not quality. Solid-state DMS and EMS are DC-only and suit modern PLC inputs; the reed-based CMS switches a much wider window, so it is the one for AC circuits, relay logic and older panels. The RW (IP68) option exists on DMS and EMS only.
| This switch | DMSE · NPN 3-wire · 5-30 V DC |
|---|---|
| Consider EMS | the mini 2-wire electronic switch for tight installations |
| Consider CMS | the reed alternative for AC circuits and voltages up to 240 V |
| Mounting parts | F-MQ (round body), F-ACT (tie-rod) |
Where the Airtac DMSE Electronic Sensor DMSE-N020-W Is Used
Robot welding cell timing
Stroke confirmation on the weld-gun cylinder so the timer only runs with the gun fully closed.
Stopper gates at a case line
Verifies stopper cylinders on a beverage case conveyor are down before the next pallet of cases releases.
Concrete block machine
Position feedback on mould-press cylinders of a block-making machine, wired to a sinking PLC input.
Is the Airtac DMSE Electronic Sensor DMSE-N020-W the Right Switch?
Start with the output: this model's NPN 3-wire arrangement suits a sinking PLC input and keeps the signal cleaner than a series-wired 2-wire loop. The -W suffix is a factory special we cannot define from our data - keep your protection expectation at IP64 until we define this variant from the datasheet. Lead length is a design choice: 2 m flying lead here, longer leads or M8/M12 connectors elsewhere in the range if your maintenance plan favours plug-in sensors. Whichever you pick, the E profile has to sit in the groove of a magnet-equipped cylinder.
Quick checklist
- ✓ Cylinder has a piston magnet
- ✓ Profile letter fits your cylinder groove
- ✓ Output matches the PLC input (NPN 3-wire)
- ✓ Supply rail is 5-30 V DC
- ✓ Lead length or M8 / M12 connector
- ✓ Coolant or flexing? Use the RW version
Installation & Wiring Notes
- check The cylinder must carry a piston magnet — a plain cylinder cannot be sensed.
- check Slide the switch along the groove to the stop position, then lock it.
- check Keep the supply within 5-30 V DC.
- check Wire npn 3-wire to match the PLC input's polarity.
- check Keep the lead clear of moving parts; use the RW type where it must flex.
- check Rated IP64 — protect it beyond that rating.
Use the F-MQ bracket on round-body cylinders and F-ACT on tie-rod cylinders where there is no groove to seat the switch. Both are ordered separately from the switch. Switching distance and mounting dimensions come from the factory datasheet — ask us for the sheet that matches your cylinder.
Airtac DMSE Electronic Sensor DMSE-N020-W FAQ
An electronic, solid-state position switch with an NPN 3-wire output, 5-30 V DC supply and IP64 protection as built. Wiring is a 2 m flying lead. The -W suffix is a factory special code whose definition is not in our data, so we hold the rating at the general IP64 and check the variant in the datasheet.
We cannot say so. Only the documented -RW option raises DMS protection to IP68 with its waterproof, oil-resistant, flex-resistant lead; the meaning of -W is not published. Tell us your environment when you enquire and we will verify the correct option in the datasheet.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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Most inquiries answered within 7-8 hours.
Related AirTAC Cylinder Sensors
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Send us the quantity, your cylinder model (so we can confirm the profile fit) and the destination. We confirm price, availability and lead time — usually within 7-8 hours.