Airtac CMSE Magnetic Reed Sensor CMSE-030-H
The AirTAC Airtac CMSE Magnetic Reed Sensor CMSE-030-H is a genuine CMS 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 5-240 V AC/DC with a 3 m flying lead. It only works on a cylinder that carries a piston magnet.
- TechnologyReed (magnetic contact)
- Output2-wire
- Supply voltage5-240 V AC/DC
- ProtectionIP64
- Profile (groove fit)E
- Lead / connector3 m flying lead
- VersionH
- RequiresMagnet-equipped cylinder
About the Airtac CMSE Magnetic Reed Sensor CMSE-030-H
The CMSE-030-H pairs a magnetic reed contact with the high-temperature construction of the CMS-H variant, so it can report piston position on cylinders installed in hot areas. Output is 2-wire over a 3 m flying lead; the contact accepts anything from 5-240 V AC/DC and the body is sealed to IP64.
Because the reed is a passive mechanical contact, no supply electronics sit near the heat - the switch simply closes a circuit when the magnet arrives. That makes it a straightforward choice for oven-adjacent or press-zone cylinders. Check that the E profile matches the sensor groove of your cylinder, and confirm the temperature rating from the datasheet.
Airtac CMSE Magnetic Reed Sensor CMSE-030-H Technical Specifications
| Model | Airtac CMSE Magnetic Reed Sensor CMSE-030-H |
|---|---|
| Family | CMS — Reed switch cylinder sensor |
| Technology | Reed (magnetic contact) |
| Output | 2-wire |
| Outputs in this family | 2-wire contact |
| Lead / connector | 3 m flying lead |
| Supply voltage | 5-240 V AC/DC |
|---|---|
| Protection rating | IP64 |
| Version | High-temperature version |
| Profile letter | E (cylinder-groove fit) |
| Profiles in this family | E, G, H, J |
| Detects | Piston magnet ring inside the cylinder |
A reed contact switches a wide window, 5-240 V AC or DC, which is why it suits AC circuits and relay logic. IP64. The CMS range has no RW / IP68 option - that belongs to DMS and EMS. 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 CMSE Magnetic Reed Sensor CMSE-030-H
| CMS | Reed switch cylinder sensor — reed (magnetic contact). |
|---|---|
| E | 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. |
| 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. |
| H | High-temperature version. On a CMS the suffix -H is the high-temperature version — do not confuse it with the H profile letter. |
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 | CMSE · 2-wire · 5-240 V AC/DC |
|---|---|
| Consider DMS | the solid-state range with NPN / PNP 3-wire outputs (DC only) |
| Consider EMS | the mini 2-wire solid-state switch (DC only) |
| Mounting parts | F-MQ (round body), F-ACT (tie-rod) |
Where the Airtac CMSE Magnetic Reed Sensor CMSE-030-H Is Used
Corrugator dryer section
Steam-heated dryer cans keep the area hot; the H-rated reed tracks web-tension cylinder position along the corrugator without degrading.
Annealing line gate
A gate cylinder beside the annealing furnace reports fully-open status; the 3 m lead lands the wiring outside the heated enclosure.
Tyre curing press core
Around a curing press, ambient heat is constant; the high-temperature reed confirms the core cylinder is seated before steam is admitted.
Is the Airtac CMSE Magnetic Reed Sensor CMSE-030-H the Right Switch?
Specify the H build whenever the cylinder sits in a heated zone that would age a general-purpose switch; elsewhere, the standard CMSE is the simpler choice. Reed output suits AC and DC circuits alike because the contact ignores polarity - electronic DMS/EMS switches cannot do that and are DC-only. The 3 m flying lead lets you land the wiring outside the hot enclosure. As always, the switch reads nothing unless the piston carries a magnet, and the E profile has to fit the cylinder groove - send us the cylinder model to verify.
Quick checklist
- ✓ Cylinder has a piston magnet
- ✓ Profile letter fits your cylinder groove
- ✓ Output matches the PLC input (2-wire)
- ✓ Supply rail is 5-240 V AC/DC
- ✓ Lead length or M8 / M12 connector
- ✓ High temperature? Use the -H 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 5-240 V AC/DC.
- check A reed contact suits AC or DC; observe the load limits on the datasheet.
- 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 CMSE Magnetic Reed Sensor CMSE-030-H FAQ
It is a high-temperature magnetic reed switch with a 2-wire output, supplied from 5-240 V AC/DC, in an IP64 housing and finished with a 3 m flying lead. The reed contact has no polarity. Datasheet confirmation is recommended for current-carrying limits and the precise temperature rating.
Functionally it reports the same piston position, but the technology differs. This reed contact is mechanical and works on AC or DC without polarity, while a DMS or EMS switch is solid-state, DC-only and, in 3-wire NPN/PNP form, built for PLC input cards. In a hot zone the H reed build usually survives better; for rapid DC cycling, go electronic.
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Related AirTAC Cylinder Sensors
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