Airtac CMSG Reed Switch Sensor CMSG-050-H
The AirTAC Airtac CMSG Reed Switch Sensor CMSG-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)G
- 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 CMSG Reed Switch Sensor CMSG-050-H
The CMSG-050-H is a high-temperature reed position switch from AirTAC's CMS family. Inside is a mechanical magnetic contact, not a solid-state circuit, so the 2-wire output behaves like a simple switch contact and accepts 5-240 V AC or DC with no polarity to observe. It reads the piston magnet of an AirTAC cylinder fitted with the magnet option, exits on a 5 m flying lead, and carries IP64 protection.
Because the contact is mechanical, it is isolated from the load circuit and tolerates a very wide supply window, but it has a finite contact life and can bounce - one reason some designers pick an electronic DMS instead for fast cycling. The H build is intended for hot zones near ovens and furnaces. The profile letter G sets the groove fit on the cylinder body; match it to your cylinder's sensor groove before ordering, since the exact series mapping is not published here.
Airtac CMSG Reed Switch Sensor CMSG-050-H Technical Specifications
| Model | Airtac CMSG Reed Switch Sensor CMSG-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 | G (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 CMSG Reed Switch Sensor CMSG-050-H
| CMS | Reed switch cylinder sensor — reed (magnetic contact). |
|---|---|
| G | 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 | CMSG · 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 CMSG Reed Switch Sensor CMSG-050-H Is Used
Furnace door interlock
On a heat-treatment line, the cylinder that lifts an oven gate carries the magnet, and this high-temp reed switch confirms closed position from outside the hot zone.
Hot-forming clamp signal
A press shop uses it on the clamp cylinders of a hot-stamping cell, where ambient heat near the dies rules out a standard general-type sensor.
Curing oven pusher
A composites shop wires the switch to 110 V AC straight from the control transformer, and the reed contact closes the end-of-stroke lamp on the oven pusher cylinder.
Is the Airtac CMSG Reed Switch Sensor CMSG-050-H the Right Switch?
Choose this CMS reed type when your circuit runs on AC, on DC above 28 V, or when you want a polarity-free contact that wires in series like a relay contact. If the signal goes to a PLC input and cycles quickly, an electronic DMS with NPN or PNP output is usually the better circuit match. The 5 m flying lead covers runs to a nearby panel without splicing; for unpluggable service, an M8 or M12 connector version suits better. This switch senses nothing on its own - the cylinder must have the built-in magnet, and profile G must seat correctly in the groove.
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 CMSG Reed Switch Sensor CMSG-050-H FAQ
It is a reed switch with a 2-wire mechanical contact. Supply window is 5-240 V AC or DC, protection is IP64, and the wiring is a 5 m flying lead. The H suffix marks the high-temperature build rather than any change to the output.
Only in heat tolerance - the standard CMSG is the general type, while the H build is meant for elevated ambient temperatures around ovens and furnaces. Voltage, IP rating and the 2-wire contact stay the same. If your environment is wet or oily instead of hot, a DMS or EMS with the -RW suffix (IP68) is the option to consider.
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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.