Airtac DMSHS Electronic Sensor DMSHS-NC12
The AirTAC Airtac DMSHS Electronic Sensor DMSHS-NC12 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 nc12 connection code (confirm from datasheet). 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 / connectorNC12 connection code (confirm from datasheet)
- VersionStandard
- 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 DMSHS Electronic Sensor DMSHS-NC12
An AirTAC DMS-family solid-state sensor, the DMSHS-NC12 carries an N in its code, meaning an NPN 3-wire output that sinks current into a PLC input. It reports piston position by reading the magnet of a magnet-equipped AirTAC cylinder. The switch runs on 5-30 V DC, meets IP64, and its wiring position reads C12 - a connection code we do not decode in our data.
In a three-wire design the sensor draws power on its own pair and switches a separate signal line, avoiding the small residual current a 2-wire series switch leaves flowing in the load circuit. The H profile is a fit code for the cylinder's sensor groove, so confirm it against the cylinder before ordering. The C12 wiring position and the trailing S are factory variant positions that will be confirmed from the datasheet.
Airtac DMSHS Electronic Sensor DMSHS-NC12 Technical Specifications
| Model | Airtac DMSHS Electronic Sensor DMSHS-NC12 |
|---|---|
| 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 | NC12 connection code (confirm from datasheet) |
| Supply voltage | 10-28 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 DMSHS Electronic Sensor DMSHS-NC12
| 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. |
| NC12 | NC12 connection code (confirm from datasheet). 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 · 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 DMSHS Electronic Sensor DMSHS-NC12 Is Used
Ventilation damper feedback
Damper-actuator cylinders in a ventilation skid report open and closed limits to the interface panel through the NPN signal, one input per end of stroke.
Cartoning machine clamps
On a cartoning machine, sleeve cylinders clamp each box as it passes; the solid-state output handles rapid indexing where a reed contact could bounce.
Multi-station press fixture
A multi-station stamping fixture verifies each of its clamp cylinders is retracted before the ram descends, using the switch signals as permissive inputs.
Is the Airtac DMSHS Electronic Sensor DMSHS-NC12 the Right Switch?
Decide by circuit first: reed switches (CMS) tolerate 5-240 V AC or DC, while this electronic DMS requires DC and an NPN match on the input side. The C12 position on this model is a connection code; its physical detail will be confirmed from the datasheet. Elsewhere in the DMS range you can pick cut-to-length flying leads or M8/M12 connectors for faster service swaps, plus an IP68 -RW build for wet or oily areas. The H profile must match the cylinder groove, and a piston magnet is required for anything to be detected.
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 DMSHS Electronic Sensor DMSHS-NC12 FAQ
It is an electronic solid-state switch with an NPN 3-wire output, a 5-30 V DC supply and an IP64 enclosure. The C12 wiring code denotes a connection type whose detail is confirmed from the datasheet, and the H profile governs the groove fit on the cylinder.
Yes. As an NPN 3-wire solid-state unit it is polarity-sensitive: the load connects between the black signal wire and positive, and the PLC input must source current. This is the opposite logic to a PNP version and opposite again to a polarity-free reed CMS. Whatever you choose, fit the cylinder with its magnet option first.
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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.