Airtac CMSH Reed Sensor CMSH-050-H
The AirTAC Airtac CMSH Reed Sensor CMSH-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)H
- 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 CMSH Reed Sensor CMSH-050-H
The CMSH-050-H pairs AirTAC's high-temperature reed construction with a 5 m lead. It is a 2-wire mechanical reed position switch accepting a 5-240 V AC/DC supply and sealed to IP64, made to detect the magnet in an AirTAC cylinder piston as it passes the switch position.
Heat is where many electronic sensors give up; a reed contact here is built for hot zones such as dryers and heated enclosures. Route the five metres away from hot surfaces where you can, then match the H profile to the cylinder groove - tell us your series and we will confirm the exact seating from the catalogue.
Airtac CMSH Reed Sensor CMSH-050-H Technical Specifications
| Model | Airtac CMSH Reed Sensor CMSH-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 | H (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 CMSH Reed Sensor CMSH-050-H
| CMS | Reed switch cylinder sensor — reed (magnetic contact). |
|---|---|
| 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. |
| 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 | CMSH · 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 CMSH Reed Sensor CMSH-050-H Is Used
Heat-tunnel gate check
A gate cylinder beside a shrink-tunnel heater signals full open before product enters; the -H build shrugs off the radiant heat.
Steam-line actuator proof
Next to a steam-heated press line, the switch confirms the clamping cylinder is home before the next cycle unlocks.
Hot-press platen interlock
Mounted on a heated platen frame, the reed contact verifies full stroke so the heating cycle cannot run with the press ajar.
Is the Airtac CMSH Reed Sensor CMSH-050-H the Right Switch?
The choice here is mostly environmental: take the -H when the cylinder runs near dryers, heated platens or steam lines, and the general CMSH-050 elsewhere. Its 2-wire reed contact sits in series with the load like a mechanical limit switch, taking 5-240 V of AC or DC. The long lead suits switches mounted far from the panel; connector variants exist for quicker swaps. Match the H profile to the sensor groove of a magnet-equipped cylinder and confirm the series with us.
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 CMSH Reed Sensor CMSH-050-H FAQ
A reed (mechanical contact) position switch, 2-wire output with no polarity, supplied from 5-240 V AC or DC, protected to IP64, fitted with a 5 m flying lead. The -H code marks the high-temperature construction; plain CMSH models are the general type.
Electronic DMS and EMS sensors are solid-state and fast, but a reed contact tolerates hot zones better and needs no supply polarity or matched NPN/PNP input. If you go electronic instead, mind polarity and the DC supply limit. Either family must sit in the correct profile groove on a magnet-equipped AirTAC cylinder.
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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.