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Cylindrical M18 photoelectric sensor, plastic housing, axial optics, M12 connector

Sick

Sick VTF18-3F1740 photoelectric proximity sensor PNP

SKU CH-RXB0-W22TW

Photoelectric proximity sensor with background blanking detects objects from 3 mm to 90 mm using focused infrared optics and a PNP output

  • PNP output simplifies wiring for standard PLC inputs
  • 3–90 mm sensing range detects objects at close to mid distance
  • IP67 enclosure rating resists dust and water ingress
  • M12 4-pin connector enables quick installation and replacement
  • 25 °C to +70 °C operating temperature suits harsh industrial environments

SICK VTF18-3F1740 photoelectric sensor

The SICK VTF18-3F1740 is a cylindrical photoelectric proximity sensor with background blanking for industrial detection tasks. It mounts via an M18 x 1 thread and connects through a 4-pin M12 male connector. The PNP light-switching output suits automation systems that require a positive switching signal. Electricians and maintenance engineers use it for reliable object detection on conveyors or machinery.

Sensing range 3 mm to 90 mm with 100 mm maximum

The sensor detects objects from 3 mm up to 90 mm with a defined sensing range, extending to a maximum of 100 mm. A 270° potentiometer allows precise adjustment of the switching point within this window. Focused optics produce a 3 mm light spot at 50 mm distance for accurate small-part detection. Infrared LED emission ensures consistent performance without visible light interference.

IP67 enclosure rated for –25 °C to +70 °C

The plastic PBT/PC housing meets IP67 enclosure rating, resisting dust ingress and temporary immersion. Operating temperature spans –25 °C to +70 °C for use in unheated or outdoor environments. Power consumption is 30 mA at 10 V DC to 30 V DC supply with 10 % ripple tolerance. Switching frequency reaches 250 Hz with a 2 ms response time for fast cycling applications.

How it compares

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Price $87.99
Cheaper than about 55% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSick
Model nameSICK VTF18-3F1740

Questions about this item

Will the VTF18-3F1740's M18 x 1 thread fit my existing M18 mounting brackets?

Yes, the sensor uses an M18 x 1 thread diameter, so it will fit standard M18 brackets you already have.

How can I verify the PNP output is switching correctly after wiring the M12 connector?

With 10–30 V DC applied, the PNP output pulls high when an object is detected within the 3–90 mm range; measure the output voltage relative to 0 V to confirm switching.

Does the box include the 4-pin M12 cable or must I order it separately?

The sensor has a male M12 4-pin connector; a matching female cable is not included and must be purchased separately.

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