Airtac DMSH Electronic Sensor DMSH-030-W
The AirTAC Airtac DMSH Electronic Sensor DMSH-030-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 2-wire output on 10-28 V DC with a 3 m flying lead. It only works on a cylinder that carries a piston magnet.
- TechnologyElectronic (solid-state)
- Output2-wire
- Supply voltage10-28 V DC
- ProtectionIP64
- Profile (groove fit)H
- Lead / connector3 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-030-W
The DMSH-030-W is AirTAC's 3 m lead version of the H-profile DMS electronic switch, with a 2-wire output for direct series connection and a 10-28 V DC supply drawn through the load circuit. Protection is IP64, the standard figure for this family. Like every model here it reads the magnet built into an AirTAC cylinder piston - without that magnet there is no signal at all.
The W at the end of the code is a special variant we cannot decode from the catalogue: we will state exactly what the factory changed once we pull the datasheet for you. What we can already say is that the contactless solid-state element gives bounce-free switching, which suits cylinders that change state frequently on an automated line. Also make sure profile H seats correctly in your cylinder's groove before ordering.
Airtac DMSH Electronic Sensor DMSH-030-W Technical Specifications
| Model | Airtac DMSH Electronic Sensor DMSH-030-W |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | 2-wire |
| Outputs in this family | 2-wire, NPN 3-wire or PNP 3-wire |
| Lead / connector | 3 m flying lead |
| Supply voltage | 10-28 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-030-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. |
| (blank) | Output: 2-wire. Blank is 2-wire, N is NPN 3-wire, P is PNP 3-wire. |
| 030 | 3 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 · 2-wire · 10-28 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-030-W Is Used
Multi-station rotary index
Around an eight-station rotary indexing dial, several 3 m leads reach a common junction strip, each switch confirming that its clamp cylinder is seated.
Test rig stroke counting
A leak-test rig cycles a breakout cylinder repeatedly; the contactless electronic output keeps counting strokes without the wear a mechanical contact would see.
Door interlock on a machine guard
A sliding machine guard driven by a compact cylinder uses the switch to prove full retraction before the control system releases the tool spindle.
Is the Airtac DMSH Electronic Sensor DMSH-030-W the Right Switch?
Order this when the routing distance needs 3 m but your circuit is a simple two-wire series loop at 10-28 V DC. For PLC inputs that expect an NPN or PNP signal, move to the 3-wire DMS variants; for washdown or flexing cable tracks, a DMS-RW with IP68 is the tougher documented option, and only the datasheet will tell us whether this W variant approaches that. A magnet-equipped cylinder is essential, and the H profile must match the groove on the cylinder body.
Quick checklist
- ✓ Cylinder has a piston magnet
- ✓ Profile letter fits your cylinder groove
- ✓ Output matches the PLC input (2-wire)
- ✓ Supply rail is 10-28 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 10-28 V DC.
- check Wire 2-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-030-W FAQ
Electronic (solid-state) sensing, 2-wire output, 10-28 V DC supply, IP64 protection and a 3 m flying lead. The trailing W is a factory special code not defined in our data, so we confirm its exact content from the datasheet on request rather than guessing.
We do not assume so. RW is the documented waterproof, oil-resistant and flex-resistant version with IP68; the meaning of W alone is not published, so until we check the datasheet this unit keeps the general IP64 rating. Ask us and we will verify.
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Standard models are processed and dispatched in 3-5 business 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.