
The AirTAC Airtac DMSE Electronic Sensor DMSE-P020-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 pnp 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.
The AirTAC DMSE-P020-W is an electronic (solid-state) position switch in a PNP 3-wire configuration. It senses the piston magnet of an AirTAC cylinder fitted with the magnet option and reports the end position to your controller. This version carries a 2 m flying lead, runs on a 5-30 V DC supply, and the general construction is rated IP64. The trailing W in the code is a factory variant we will confirm from the datasheet on request.
Because the output stage is PNP 3-wire, the switch sources current into a positive-logic PLC input and delivers a cleaner, bounce-free signal than a contact-type sensor - there is no mechanical contact to wear or chatter under fast cycling. The E profile letter defines the fit with the cylinder's sensor groove; it is not a performance grade, so check it against your cylinder before ordering.
| Model | Airtac DMSE Electronic Sensor DMSE-P020-W |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | PNP 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.
| 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. |
| P | Output: PNP 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.
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 · PNP 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 PNP signal feeds the PLC input that verifies the pneumatic clamp has fully closed before the machining cycle is allowed to start.
Short 2 m runs from switch to junction box keep the cabinet wiring tidy on a carton diverting station with tight cable channels.
European control panels wired for sourcing inputs take the PNP output directly, with no interposing relay needed.
Pick a PNP 3-wire DMS when your PLC input card expects a sourcing (positive-switching) signal; an NPN card needs the N version instead. A 2 m flying lead suits short, fixed runs where you can cut and terminate the cable yourself. If you want to unplug the switch during maintenance, choose an M8 or M12 connector variant instead of the lead. The switch only works on a cylinder built with the magnet option, and the E profile must seat correctly in that cylinder's groove - confirm both with the datasheet or ask us.
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.
It is an electronic (solid-state) switch with a PNP 3-wire output. Supply voltage is 5-30 V DC. The general type is protected to IP64. Connection is a 2 m flying lead. The W suffix is an undocumented special code - confirm its exact meaning from the datasheet.
Yes. It can only detect a piston that carries a magnet, so the cylinder must be ordered with the magnet option. The E profile letter selects how the body sits in the cylinder's sensor groove - if it does not match, the switch will not seat. Tell us your cylinder series and we will confirm the fit.
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.