extend your senses
Non-flush inductive proximity switches
PSI M18 3wire

Non-flush inductive proximity switches
PSI M18 3wire

Non-flush inductive proximity switches
PSI M18 3wire
On request



Inductive proximity switches are used for the monitoring of the presence or metal objects. Depending on the switch mode (normylly open/normally closed), the output closes or opens, when the conductive object approaching the active switching zone.

Operation - is maintenance-free. For a fault free operation it is however necessary to keep the following principles: Surfaces of the active switching zone have to be kept free, clean. It is necessary to prevent sediments and other foreign particles from touching and setting up the active surface of the sensor, especially when mounted in upright position (active surface upwards). High electromagnetic field intensity devices (e.g. radiophone) must not be used in the immediate vicinity of the sensors.

Connection of a switch to an electric circuit - Switch connectionmust meet the high protection standard required and resist the high operation temperatures. The proximity switches specified in this catalogue are delivered with 2 x 0.25 mm2, 3 x 0.25 mm2 or 4 x 0.25 mm2 PVC cable in length of 2 m. This type meets the IP 68 enclosure class. The quick-disconnect version is provided with the connector type complying with the IP 67 enclosure class.

Technické parametry

Technical parameters
With cable With connector
Nominal sensing distance Sn 8 mm
Effective sensing distance Sr 6 - 10 mm
Case M18
Case material nickel plated brass
Mounting non-flush
Hysteresis Sa (0.01 - 0.15) x Sn
Nominal voltage Un 24 V DC
Supply voltage Uc 10 - 30 V DC
Supply current Ic < 10 mA
Output current Iz < 200 mA
Ambient temperature range T -25 °C to 70°C
Ingress protection
IP 68 IP 67
Connection type cable PVC 3 x 0,25 mm2 connector M12

Switching frequency
Design With cable With connector
Normal 100 Hz
Slow 20 Hz
Fast 500 Hz

Order reference number
OUTPUTSwitching frequencyWith cableWith connector
NPN n.o.normalPSI 188 311PSI 188 411
slowPSI 188 311 SPSI 188 411 S
fastPSI 188 311 FPSI 188 411 F
NPN n.c.normal PSI 188 312PSI 188 412
slowPSI 188 312 SPSI 188 412 S
fastPSI 188 312 FPSI 188 412 F
PNP n.o.normalPSI 188 313PSI 188 413
slowPSI 188 313 SPSI 188 413 S
fastPSI 188 313 FPSI 188 413 F
PNP n.c.normalPSI 188 314PSI 188 414
slowPSI 188 314 SPSI 188 414 S
fastPSI 188 314 FPSI 188 414 F

Note: Manufacturer reserves the right to make changes in design and technical characteristics of the products. For actual information, please always contact your dealer.

Rozměrový náčrt

Schéma zapojení


Soubory ke stažení


SENSIT s.r.o.

Školní 2610, 756 61 Rožnov pod Radhoštěm

+420 571 625 571



Receive news and product information in your email.

© Copyright 2022 SENSIT s.r.o. | Školní 2610, 756 61 Rožnov pod Radhoštěm, Czech Republic | +420 571 625 571 | 08c688a5-2161-4b85-ba50-f669a98c7e2f
All Rights Reserved. Webdesign: FlexiSystems s.r.o.: e-learning, webdesign, CMS.