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Festo SIEN-M18B-PS-K-L — Proximity Sensors

Festo SIEN-M18B-PS-K-L Inductive Sensor, M18, PNP NO

MPNSIEN-M18B-PS-K-L

Festo SIEN Series, Inductive Proximity Sensor, M18 barrel, PNP normally open output, part SIEN-M18B-PS-K-L.

$107.87Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

SIEN-M18B-PS-K-L — Specifications
ParameterValue
Weight0.00 kgs

Product details

It provides a PNP normally open (NO) switching output, making it a direct-fit replacement for sensors specified with that output logic in 18 mm mounting holes.

The M18 barrel threads into standard 18 mm mounting holes or bracket clamps common on Festo and other pneumatic actuator assemblies. The PNP NO output is compatible with most PLC sinking inputs and safety relay modules that expect a positive-switching signal.

Frequently asked questions

What is the closest functional alternative to SIEN-M18B-PS-K-L?

The SIEN-M18B-PO-S-L is a peer in the same SIEN series and M18 form factor, but it uses a PNP normally closed (NC) output. If your circuit expects a normally open signal, the SIEN-M18B-PS-K-L is the correct choice; the PO variant would require a logic inversion or wiring change.

Will SIEN-M18B-PS-K-L drop into a panel specified around SIEN-M18B-PO-S-L?

Mechanically yes — both share the M18 barrel and same housing. Electrically no: the PS-K-L is normally open, the PO-S-L is normally closed. Verify your control logic before substituting.

MPN
SIEN-M18B-PS-K-L