Airtac DMSH Electronic Sensor DMSH-NC12
The AirTAC Airtac DMSH Electronic Sensor DMSH-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 npn 3-wire output on 5-30 V DC. It only works on a cylinder that carries a piston magnet.
- TechnologyElectronic (solid-state)
- OutputNPN 3-wire
- Supply voltage5-30 V DC
- ProtectionIP64
- Profile (groove fit)H
- Lead / connectorSee 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 DMSH Electronic Sensor DMSH-NC12
The DMSH-NC12 is AirTAC's DMS electronic switch in the H groove profile with an NPN 3-wire output - a sinking signal for PLC input cards. Its C12 connection code is a catalogue variant whose physical termination is not covered by our published data; we will confirm it from the datasheet on request. It operates from 5-30 V DC and the general housing is sealed to IP64.
Solid-state switching means no mechanical contact to bounce or wear out during the fast cycling typical of automated machinery - but it also means DC supply only and correct polarity at hookup. The sensor reports position solely when clipped into the sensor groove of an AirTAC cylinder that carries the built-in magnet option, and that groove must match the H profile.
Airtac DMSH Electronic Sensor DMSH-NC12 Technical Specifications
| Model | Airtac DMSH Electronic Sensor DMSH-NC12 |
|---|---|
| Family | DMS — Electronic cylinder switch |
| Technology | Electronic (solid-state) |
| Output | NPN 3-wire |
| Outputs in this family | 2-wire, NPN 3-wire or PNP 3-wire |
| Lead / connector | See datasheet |
| 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-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. |
| N | Output: NPN 3-wire. Blank is 2-wire, N is NPN 3-wire, P is PNP 3-wire. |
| 12 | See 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 · NPN 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-NC12 Is Used
Packaging machine cam station
A magnet-fitted cylinder driving a box-flap folder returns end-position signals to the machine PLC; the electronic contact shrugs off thousands of cycles per shift without reed wear.
High-bay lift interlock
On a vertical lift module, the switch confirms the platform cylinder has fully retracted before the shuttle is allowed to move, feeding a safety-checked input on the controller.
High-cycle pick-and-place
Gripper cylinders on a fast pick-and-place gantry report stroke completion; the solid-state NPN output keeps up with short cycle times where a mechanical contact would be the weak link.
Is the Airtac DMSH Electronic Sensor DMSH-NC12 the Right Switch?
Order this code when a sourcing PLC input and the C12 connection variant are both required; for a sinking input card, switch to the P version. Remember the difference between families: this DMS part is electronic and DC-only, whereas a CMS reed switch works on 5-240 V AC or DC with a mechanical contact. For hostile washdown areas, the -RW build raises DMS protection from IP64 to IP68. Whichever variant you take, match the profile letter to the cylinder's groove - we can verify the pairing against your cylinder series.
Quick checklist
- ✓ Cylinder has a piston magnet
- ✓ Profile letter fits your cylinder groove
- ✓ Output matches the PLC input (NPN 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 npn 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-NC12 FAQ
Type: DMS electronic (solid-state). Output: NPN 3-wire. Supply: 5-30 V DC. Protection: IP64 (general type). Wiring: C12 connection code, which we will confirm from the datasheet. Values such as response time are not in our data - confirm from the datasheet.
This is an electronic switch: solid-state, DC only, polarity-conscious, with no moving contact to bounce. A CMS reed switch instead closes a mechanical contact and tolerates 5-240 V AC or DC, but has a finite contact life. Pick by your circuit - DC PLC work suits this DMS part.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
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-NC12
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.