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Cylindrical nickel-plated brass sensor with 2 m PVC cable

Sick

Sick VL18-3P3312 photoelectric retro-reflective sensor PNP 10-30V DC IP67 2m cable electrician tool

SKU CH-9VA7-YZESW MPN VL18-3P3312

A photoelectric retro-reflective sensor with PNP dark-switching output, 0.05 m to 3.7 m sensing range, and IP67-rated metal housing

  • Detects objects up to 3.7 m with visible red LED
  • PNP dark-switching output handles 100 mA at 250 Hz
  • IP67-rated nickel-plated brass housing resists dust and water
  • Operates from 10 to 30 V DC across –25 °C to +70 °C
  • 2 m PVC cable with 3-wire 0.14 mm² conductors simplifies wiring

Retro-reflective photoelectric sensor

The Sick VL18-3P3312 is a cylindrical M18 photoelectric sensor that uses a visible red LED to detect objects by reflecting light off a separate reflector. It operates on 10 to 30 V DC and provides a PNP dark-switching output with a maximum load of 100 mA. The housing is nickel-plated brass rated IP67 for harsh industrial environments.

Suited for presence detection up to 3.7 m

This sensor suits automated lines, packaging machines and conveyor systems where a compact radial-optic device is required and a reflector can be mounted opposite. It is not for applications needing background suppression, polarised retro-reflection for shiny targets, or a teach-in button for range adjustment.

3.7 m maximum sensing range

The key specification is the 0.05 m to 3.7 m maximum sensing range, which determines whether the sensor can bridge the distance between its mounting point and the reflector in your specific layout.

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Price $99.99
Typical for this category: the median of 5,006 items is $95.99.

Specifications

Product
Brand nameSICK
Model nameVL18-3P3312

Questions about this item

What sensing range does the M18 retro-reflective sensor actually reach with a standard reflector?

The sensor detects from 0.05 m up to 3 m with a typical reflector; the absolute maximum is 3.7 m under ideal conditions.

What clearance and thread size are needed to mount the cylindrical housing?

The housing is 60.6 mm long with an M18 × 1 thread, so a 60.6 mm deep clearance hole and matching M18 nut are required.

How is the 3-wire cable connected for a PNP dark-switching output, and what mistake should be avoided?

Connect brown to 10–30 V DC, blue to 0 V, and black to the load; the common error is wiring the black wire as a light-switching output instead of dark-switching.

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