Magnetic proximity sensor switch (DC 3-wire type / square shape M9 case type)
【Sample available for loan!】 A unique magnetic switch different from reed switches and Hall elements. Long lifespan design, maintenance-free limit switch.
This is a DC three-wire magnetic proximity switch using a saturable coil with high-frequency transmission. We offer four models tailored to different applications based on shape and protective structure. The 'SW-252A' and 'SW-272A', compliant with IP68, can be used underwater at all times. Additionally, leveraging the characteristics of magnetic detection type proximity switches, they can differentiate the detection of magnetic poles (both NS poles, only N pole, only S pole). Main features: Four models are available: rectangular case types 'SW-250A' and 'SW-252A', and M9 case types 'SW-270A' and 'SW-272A'. - The 'SW-250A' and 'SW-270A' with protection structure IP67 come with an operation indicator light. - The 'SW-252A' and 'SW-272A' compliant with IP68 can be used underwater at all times. - Output formats (PNP, NPN) can be selected according to PLC input. - The 'SW-270A' and 'SW-272A' have screw threads on the sensor body, making height adjustment easy after installation! The detection distance can be freely set according to the magnetic force of the magnet, allowing multiple units to be used in parallel without mutual interference. Discontinued: SW-150, SW-170 compatible products. *For more details, please download the catalog or contact us.*
basic information
■It detects the magnetic field generated by the magnet, so it is not affected by dirt or dust. ■IP67, rectangular case ■IP67, M9 case ■IP68, rectangular case ■IP68, M9 case ■We offer various variations, including detection magnetic poles. Additionally, taking advantage of the features of magnetic detection type proximity switches, we can differentiate the detection of magnetic poles: both N and S poles, only N pole, only S pole, and each type. ■DC 3-wire type. NPN transistor open collector output. PNP available. ■Various magnets for detection are also available. *For more details, please download the catalog or contact us.
Price information
Please contact us.
Delivery Time
Model number/Brand name
Magnetic proximity switch SW-250A, SW-270A
Applications/Examples of results
Conveyor limit switch Origin switch Stop switch
Line up（12）
| Model number | overview |
|---|---|
| SW-250A | IP67, square case, N pole S pole |
| SW-250A-N | IP67, square case, N pole |
| SW-250A-S | IP67, square case, S pole |
| SW-252A | IP68, square case, N pole S pole |
| SW-252A-N | IP68, square case, N pole |
| SW-252A-S | IP68, square case, S pole |
| SW-270A | IP67, M9 case, N pole S pole |
| SW-270A-N | IP67, M9 case, N pole |
| SW-270A-S | IP67, M9 case, S pole |
| SW-272A | IP68, M9 case, N pole S pole |
| SW-272A-N | IP68, M9 case, N pole |
| SW-272A-S | IP68, M9 case, S pole |
catalog（4）
Download All Catalogs
CAD data（20）
| Model number | overview | File |
|---|---|---|
| SW-250A | Square type IP67 |
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| SW-250A | Square type IP67 |
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| SW-252A | Square type IP68 |
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| SW-252A | Square type IP68 |
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| SW-270A | M9 IP67 |
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| SW-270A | M9 IP67 |
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| SW-272A | M9 IP68 |
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| SW-272A | M9 IP68 |
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| MG-101 | Rubber magnet for software use |
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| MG-101 | Rubber magnet for software use |
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| MG-102A | SW use ferrite magnet with cover |
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| MG-102A | SW use ferrite magnet with cover |
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| MG-102AS | SW type ferrite magnet with cover, S pole |
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| MG-102AS | SW type ferrite magnet with cover, S pole |
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| MG-103 | SW-type magnetizing device |
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| MG-103 | SW-type magnetizing device |
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| MG-104 | Magnetizing device for software use |
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| MG-104 | Magnetizing device for software use |
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| MG-150 | SW Series Dedicated Magnet |
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| MG-150 | SW Series Dedicated Magnet |
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