Airtac CMSE Magnetic Reed Sensor CMSE-050-H
The AirTAC Airtac CMSE Magnetic Reed Sensor CMSE-050-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 5 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 / connector5 m flying lead
- VersionH
- 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 CMSE Magnetic Reed Sensor CMSE-050-H
The CMSE-050-H is the high-temperature variant of the CMSE reed position switch. The trailing H marks a version built for hot surroundings, where a standard reed switch body and its potting would not survive. It is still a 2-wire magnetic reed contact: it closes when the piston magnet of a magnet-equipped AirTAC cylinder arrives, runs on anything from 5 to 240 V AC or DC, and carries IP64 sealing. The 5 m flying lead lets you route the cable out of the hot zone to a cooler terminal point.
Heat is the reed switch's worst enemy over time, so the H option exists specifically for cylinders mounted near ovens, dryers and heated presses. Note that the exact continuous temperature limit is not stated in our data - confirm it from the datasheet before you specify the mounting position.
Airtac CMSE Magnetic Reed Sensor CMSE-050-H Technical Specifications
| Model | Airtac CMSE Magnetic Reed Sensor CMSE-050-H |
|---|---|
| Family | CMS — Reed switch cylinder sensor |
| Technology | Reed (magnetic contact) |
| Output | 2-wire |
| Outputs in this family | 2-wire contact |
| Lead / connector | 5 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-050-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. |
| 050 | 5 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-050-H Is Used
Drying oven door position
Fitted to the AirTAC cylinder that lifts and seals an industrial dryer door. The H build tolerates radiant heat near the oven shell while the 5 m lead keeps the terminals in cooler air.
Heated press ejector check
On a compression press, the switch confirms the ejector cylinder is fully retracted before parts are unloaded. The high-temperature option copes with heat soak from the heated platen.
Bottle washer gate feedback
Mounted on a gate cylinder beside a hot bottle-washing tunnel in a bottling plant, feeding a 110 V AC interlock circuit through the reed contact.
Is the Airtac CMSE Magnetic Reed Sensor CMSE-050-H the Right Switch?
Choose this H version when the cylinder sits in a hot area - beside an oven door, a drying tunnel or a heated mould - and a general-type CMS would age too fast. Everything else matches the standard CMSE-050: reed contact, 2-wire hookup, 5-240 V AC/DC, IP64, 5 m lead. It still needs a cylinder with the built-in magnet, and the E profile must seat in that cylinder's groove, so confirm the fit code against your series. For cold or ambient duty, the plain CMSE-050 does the same job.
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-050-H FAQ
It is a reed-type position switch with a mechanical 2-wire contact, rated 5-240 V AC or DC, IP64 protected, on a 5 m flying lead. The reed contact is polarity-free and isolates the switched circuit, and the H suffix identifies the high-temperature construction rather than any change to the electrical ratings.
The catalogue identifies the H code as the high-temperature version but does not state a continuous temperature figure in our extract, so confirm the exact limit from the datasheet before fixing the mounting point. Protection remains IP64 - the same as the general type - because the IP68 waterproof option (-RW) applies to the DMS and EMS electronic families, not to CMS reed switches.
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Related AirTAC Cylinder Sensors
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