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Cylindrical metal sensor with angled head and two metre PVC cable

Sick

Sick VL18-3F3412 photoelectric retro-reflective sensor PNP

SKU CH-B19Z-GYS17

Photoelectric retro-reflective sensor with PNP output, 0.05 to 3.7 m range, visible red LED, 10–30 V DC supply, IP67-rated metal housing, and 2 m PVC cable

  • Detects objects up to 3.7 m with visible red LED
  • Adjustable sensing range via potentiometer for precise setup
  • PNP light-switching output simplifies PLC integration
  • IP67 metal housing withstands –25 °C to +70 °C
  • 2 m PVC cable with 0.14 mm² conductors ready to install

Industrial retro-reflective sensor

The Sick VL18-3F3412 is a cylindrical photoelectric sensor that uses visible red LED light to detect objects up to 3.7 metres away. It operates on a 10 to 30 V DC supply and provides a PNP light-switching output for direct integration with industrial control systems. The brass nickel-plated metal housing and IP67 rating suit harsh factory environments. Adjustment is via a built-in potentiometer.

Wiring and mounting considerations

A two-metre PVC cable with 0.14 mm² conductors and 3.1 mm outer diameter carries power and signal, requiring a compatible DC source and a PLC or relay input rated for PNP switching. The angled cylindrical body measures 60.6 mm across and fits M18 mounting points, leaving the optical axis offset for tight machine frames. The enclosure withstands ambient temperatures from –25 °C to +70 °C without additional sealing.

Sustained detection performance

Response time is specified at 2 milliseconds, allowing reliable detection on fast-moving conveyors or indexing tables during continuous operation. The 2.8° angle of dispersion keeps the beam focused over the full 0.05 to 3 metre sensing range, reducing false triggers from nearby surfaces. UL file NMFT2.E175606 confirms compliance for use in certified panels and machines.

Highlights

  • Detects objects up to 3.7 m with visible red LED
  • Adjustable sensing range via potentiometer for precise setup
  • PNP light-switching output simplifies PLC integration
  • IP67 metal housing withstands –25 °C to +70 °C
  • 2 m PVC cable with 0.14 mm² conductors ready to install

Specifications

BrandSick
ModelSICK VL18-3F3412

Questions about this item

What is the maximum sensing distance before the retro-reflective sensor loses reliable detection?

The sensing range maximum is 0.05 m to 3.7 m, with a nominal range of 0.05 m to 3 m using visible red light and a 2.8° dispersion angle.

How much current does the sensor draw and what is the enclosure rating for continuous operation?

Power consumption is 30 mA at 10 V DC to 30 V DC supply voltage, and the housing meets IP67 enclosure rating for dust and water protection.

What voltage supply and output wiring does the sensor need to function?

It requires a 10 V DC to 30 V DC supply and provides a PNP light-switching output via a 2 m PVC cable with 0.14 mm² conductors.

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