Airtac DMSH Electronic Sensor DMSH-P020
The AirTAC Airtac DMSH Electronic Sensor DMSH-P020 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
- VersionStandard
- RequiresMagnet-equipped cylinder
About the Airtac DMSH Electronic Sensor DMSH-P020
A compact solid-state sensor from the DMS line, the DMSH-P020 detects the piston magnet of an AirTAC cylinder. Here P denotes a PNP 3-wire output that sources current to the PLC input, the H profile body locates in the cylinder's sensor groove, and 020 decodes to a 2 m flying lead. It draws its supply from 5-30 V DC, and the general type is protected to IP64.
The PNP wiring suits European-style input cards that expect a sourcing signal, and the three-wire arrangement gives the controller a cleaner edge than a two-wire switch placed in series with the load. The short 2 m lead suits compact machines where the junction point sits close by. As with every switch in this class, it senses nothing until it is fitted to a magnet-equipped cylinder (-S option) whose groove matches the H profile - confirm the pairing with us.
Airtac DMSH Electronic Sensor DMSH-P020 Technical Specifications
| Model | Airtac DMSH Electronic Sensor DMSH-P020 |
|---|---|
| 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 | Standard version |
| 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
| 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. |
| (blank) | Standard version. |
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 Is Used
Bottling line gate monitoring
A gate cylinder with the magnet option blocks the filler until it is fully open; the PNP output feeds a sourcing input card in the line PLC mounted right beside the machine.
Maintenance-friendly press station
With only 2 m of lead to a nearby terminal box, a technician replaces the switch in minutes during scheduled press maintenance - no long cable retracing required.
Modular palletising cell
Each clamp cylinder in the cell reports 'gripped' via its PNP signal, letting the robot controller interlock the next pick until every part is held securely.
Is the Airtac DMSH Electronic Sensor DMSH-P020 the Right Switch?
If your input module sinks rather than sources, take the NPN variant instead of this PNP model. A 2 m flying lead is the economical route on small machines and can be shortened as needed; M8 or M12 connector versions make swapping a damaged switch faster on production lines that cannot wait for rewiring. Harsh washdown environments justify the -RW build with its IP68 rating. In every case the profile letter is a fit code for the cylinder groove, not a performance grade - tell us your cylinder series and we will verify the match.
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 FAQ
It is a DMS electronic (solid-state) switch with a PNP 3-wire output, supplied from 5-30 V DC, protected to IP64 in the general version, and wired with a 2 m flying lead. Load figures and similar ratings: confirm from the datasheet.
Yes. The piston must contain the built-in magnet - AirTAC's -S option - otherwise the switch never changes state. The H profile also has to seat correctly in that cylinder's sensor groove, so check the fit against your cylinder series before ordering.
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Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
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.