extend your senses
Non-flush inductive proximity switches
PSI M30 3wire

Non-flush inductive proximity switches
PSI M30 3wire

Non-flush inductive proximity switches
PSI M30 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 15 mm
Effective sensing distance Sr 12 - 18 mm
Case M30
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 400 Hz

Order reference number
OUTPUTSwitching frequencyWith cableWith connector
NPN n.o.normalPSI 308 311PSI 308 411
slowPSI 308 311 SPSI 308 411 S
fastPSI 308 311 FPSI 308 411 F
NPN n.c.normal PSI 308 312PSI 308 412
slowPSI 308 312 SPSI 308 412 S
fastPSI 308 312 FPSI 308 412 F
PNP n.o.normalPSI 308 313PSI 308 413
slowPSI 308 313 SPSI 308 413 S
fastPSI 308 313 FPSI 308 413 F
PNP n.c.normalPSI 308 314PSI 308 414
slowPSI 308 314 SPSI 308 414 S
fastPSI 308 314 FPSI 308 414 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



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