
The AirTAC Airtac DMSH Electronic Sensor DMSH-N050-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 5 m flying lead. It only works on a cylinder that carries a piston magnet.
The DMSH-N050-W belongs to AirTAC's DMS electronic range: a solid-state NPN 3-wire switch that detects the piston magnet of a magnet-fitted cylinder. It draws from a 5-30 V DC supply over a 5 m flying lead, and the standard construction is sealed to IP64.
One point worth knowing: -W on its own is not a documented option code in our data. We treat it as a factory special and will verify its exact meaning against the datasheet, keeping the IP64 figure meanwhile. The H profile remains a groove-fit code - confirm it suits your cylinder series.
| Model | Airtac DMSH Electronic Sensor DMSH-N050-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 | 5 m flying lead |
| Supply voltage | 5-30 V DC |
|---|---|
| Protection rating | IP64 |
| Version | W - factory special code, confirm from datasheet |
| Profile letter | H (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.
| DMS | Electronic cylinder switch — electronic (solid-state). |
|---|---|
| H | 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. |
| 050 | 5 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.
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 | DMSH · 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) |
A conveyor line's stopper cylinder carries the switch in its groove; when the blade rises, the NPN output tells the sorter that the next parcel can be released.
On a multi-station rotary carousel, each clamp cylinder's switch feeds a station-ready signal to the controller so tooling only starts on a locked part.
During changeover on a welding fixture, technicians reposition the switch along the groove to set a new clamp-detection point, then route its 5 m lead to the panel.
Start from your supply: 5-240 V AC/DC points to the reed CMS family, 5-30 V DC to this solid-state DMS. The NPN 3-wire output connects to a sinking PLC input card and avoids reed bounce on high-rate cycles. A 5 m flying lead gives routing freedom and can be shortened on site; a connector build is the better answer where the sensor gets unplugged during maintenance. Sealing is IP64 as standard, with the -RW build available for IP68 duties. The profile letter is a groove-fit code, and no signal appears unless the cylinder carries the magnet option.
Quick checklist
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.
Base data: electronic solid-state sensing, NPN 3-wire output, 5-30 V DC supply, 5 m flying lead and IP64 sealing. Because -W is a factory special we will verify from the datasheet whether it adds anything; until confirmed we quote the standard IP64 construction.
The H in DMSH-N050-W selects the mounting style that seats in a particular cylinder sensor groove - it is a fit code, not a grade. A mismatched switch will not clip in correctly, and even a correctly fitted one reads nothing unless the cylinder has the factory magnet option.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models are processed and dispatched in 3-5 business days.
Most inquiries answered within 7-8 hours.
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.