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Cylindrical M18 photoelectric sensor with M12 connector, grey PBT/PC housing, 75 mm long

Sick

Sick VS/VE18-4P3640 Through-beam Photoelectric Sensor

SKU CH-0FRG-X56PS

Through-beam photoelectric sensor detects objects up to 20 m with infrared LED, PNP output, M12 connector, IP67 housing

  • Reliable detection up to 20 m with through-beam infrared LED
  • Simple integration via M12 4-pin connector and 10–30 V DC supply
  • Fast response at 250 Hz switching frequency and 2 ms response time
  • Durable IP67-rated PBT/PC housing withstands –25 °C to +70 °C environments
  • Flexible light/dark switching selectable via L/D control cable

Industrial Through-beam Sensor

The Sick VS/VE18-4P3640 is a cylindrical through-beam photoelectric sensor designed for industrial automation tasks requiring reliable object detection over distance. It suits engineers and maintenance teams integrating presence sensing into conveyor, packaging or material-handling systems.

Voltage and Range Limits

Operation requires a 10 V DC to 30 V DC supply with a maximum 10 % ripple and draws up to 30 mA. The infrared LED achieves a maximum sensing range of 20 m, though the specified sensing range is 14 m with a 700 mm light spot at that distance.

PNP Switching Output

The sensor provides a PNP switching output selectable between light and dark switching via an L/D control cable, delivering up to 100 mA with a 2 ms response time and 250 Hz switching frequency. This output type determines compatibility with the controller input card.

Highlights

  • Reliable detection up to 20 m with through-beam infrared LED
  • Simple integration via M12 4-pin connector and 10–30 V DC supply
  • Fast response at 250 Hz switching frequency and 2 ms response time
  • Durable IP67-rated PBT/PC housing withstands –25 °C to +70 °C environments
  • Flexible light/dark switching selectable via L/D control cable

Specifications

BrandSICK
ModelSICK VS/VE18-4P3640

Questions about this item

Should I use the 20 m maximum range or the 14 m sensing range for my layout?

Use the 14 m sensing range for reliable detection; the 20 m figure is the absolute maximum under ideal conditions. The 2.8 ° dispersion gives a 700 mm spot at 14 m.

What does the 250 Hz switching frequency mean on a production line?

The sensor can change state 250 times per second with a 2 ms response time, suitable for fast object counting or edge detection at up to 14 m range.

How does the M12 4-pin connector limit the wiring options?

The 4-pin M12 plug carries 10–30 V DC supply, PNP switching output up to 100 mA, and the L/D control wire for light/dark mode selection.

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