Airtac DMSH Electronic Sensor DMSH-P020-W
The AirTAC Airtac DMSH Electronic Sensor DMSH-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.
- TechnologyElectronic (solid-state)
- OutputPNP 3-wire
- Supply voltage5-30 V DC
- ProtectionIP64
- Profile (groove fit)H
- Lead / connector2 m flying lead
- VersionW
- RequiresMagnet-equipped cylinder
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac DMSH Electronic Sensor DMSH-P020-W
The DMSH-P020-W is an AirTAC DMS-series electronic position switch with a PNP 3-wire output. It clips into the sensor groove of an AirTAC cylinder and signals when the magnet-equipped piston arrives. Wiring is a 2 m flying lead, supply is 5-30 V DC, and the general type carries IP64 protection. The -W suffix on this code is a factory variant we will confirm from the datasheet on request.
Inside there are no moving contacts - the sensing element is solid-state, so it does not bounce and suits fast, repetitive cycling. The H profile letter is a fit code that must match the groove on your cylinder body; check the exact seating before ordering. Without a magnet cylinder the switch has nothing to read.
Airtac DMSH Electronic Sensor DMSH-P020-W Technical Specifications
| Model | Airtac DMSH Electronic Sensor DMSH-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 | 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.
Model Code: Airtac DMSH Electronic Sensor DMSH-P020-W
| 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. |
| 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.
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 | DMSH · 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) |
Where the Airtac DMSH Electronic Sensor DMSH-P020-W Is Used
Packaging arm end-detect
Clip it at the retracted end of a magnet cylinder on a carton-forming arm, wired over 2 m into the machine's local junction box.
Pusher home position
On a conveyor reject pusher, the PNP signal tells the PLC the pusher has fully returned before the next box advances.
Panel builder standard
For control panel builders who standardise on sourcing inputs, a 5-30 V DC electronic switch drops straight into existing 3-wire wiring.
Is the Airtac DMSH Electronic Sensor DMSH-P020-W the Right Switch?
Choose PNP when your PLC input card expects a sourcing signal that switches the positive line - the 3-wire hookup gives a cleaner, more defined level than a 2-wire loop. A 2 m lead suits short runs to a nearby terminal box. If washdown or oil splash is present, ask about the -RW version, which lifts protection to IP68; the -W code here is not that version and must be verified. Confirm the H profile against your cylinder groove and fit a magnet cylinder.
Quick checklist
- ✓ Cylinder has a piston magnet
- ✓ Profile letter fits your cylinder groove
- ✓ Output matches the PLC input (PNP 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 pnp 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 DMSH Electronic Sensor DMSH-P020-W FAQ
It is an AirTAC DMS electronic switch with a PNP 3-wire output. Supply is 5-30 V DC, wiring is a 2 m flying lead, and the general type is rated IP64. The -W suffix is a special code we confirm from the datasheet.
A 3-wire PNP output switches the positive feed into your PLC input, giving a clean on/off level. A 2-wire type wires in series like a mechanical contact and carries a small leakage current. The -W code here is not the IP68 -RW version; verify it with us first.
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Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Related AirTAC Cylinder Sensors
Request a Quote for Airtac DMSH Electronic Sensor DMSH-P020-W
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.