Festo SIEH Series, Inductive Proximity Sensor, M12 barrel, PNP normally open output, part SIEH-M12B-PO-S-L.
| Parameter | Value |
|---|---|
| Weight | 0.45 kgs |
The Festo SIEH-M12B-PO-S-L is an M12-barrel inductive proximity sensor from the SIEH series, configured with a PNP normally-open (NO) output. This is a standard DC three-wire sensor — the PNP NO variant is the most common choice for PLC digital inputs that source current (sourcing logic). The M12 threaded barrel fits standard 12mm mounting holes or clamp brackets, common in Festo handling and assembly modules.
This part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — confirmed at quote time.
No — the M18B variant uses an 18 mm barrel, while the M12B uses a 12 mm barrel. The mounting hole diameter and bracket are different. The output logic also differs: the M12B-PO is PNP normally open, while the M18B-PS is PNP normally closed. They are not drop-in interchangeable without changing the mounting hardware and reviewing the PLC input logic.
The output logic: PO is PNP normally open (NO), PS is PNP normally closed (NC). Both are M12 barrel, same series, same mechanical footprint. The choice depends on whether the PLC input needs a high signal when the target is present (NO) or absent (NC).
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