top of page

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.

Technical parameters
DesignWith cableWith connector
Nominal sensing distance Sn5 mm
Effective sensing distance Sr4 - 6 mm
Case materialnickel plated brass
Hysteresis Sa(0.01 - 0.15) x Sn
Nominal voltage Un24 V DC
Supply voltage Uc10 - 30 V DC
Supply current Ic< 10 mA
Output current Iz< 200 mA
Ambient temperature range T-25 °C to 70°C
Ingress protectionIP 68IP 67
Connection typecable PVC 4 x 0,25 mm2connector M12


Switching frequency
DesignWith cableWith connector
Normal500 Hz
Slow50 Hz


 Order reference number
OutputSwitching frequencyWith cableWith connector


n.o. & n.c.

NormalPDI 126 315PDI 126 415
SlowPDI 126 315 SPDI 126 415 S


n.o. & n.c.

NormalPDI 126 316PDI 126 416
SlowPDI 126 316 SPDI 126 416 S


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

Flush inductive proximity switches PDI M12 4wire

    bottom of page