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Cylindrical M18 plastic photoelectric sensor with M12 connector

Sick

SICK VS/VE18-3P3840 Through-beam Photoelectric Sensor PNP

SKU CH-M46D-YBGSA

Through-beam photoelectric sensor detects objects up to 20 m away using infrared LED and PNP dark-switching output

  • Through-beam sensing up to 20 m range
  • Infrared LED with 2.8° dispersion angle
  • PNP dark-switching output at 250 Hz
  • IP67-rated PBT/PC housing for harsh environments
  • Operates from –25 °C to +70 °C on 10–30 V DC

Industrial Sensing with 20 m Range

The SICK VS/VE18-3P3840 is a through-beam photoelectric sensor built for industrial automation. Its cylindrical M18 housing fits standard mounting points and uses infrared LED emission for reliable object detection. The sensor suits production lines, packaging machines and material-handling systems that need consistent presence sensing over long distances.

DC Power and IP67 Enclosure

Operation runs on 10 V DC to 30 V DC with a maximum current draw of 30 mA. The PNP dark-switching output delivers up to 100 mA at a 250 Hz switching frequency and a 2 ms response time. An IP67-rated PBT/PC housing protects the electronics from dust and water ingress across an ambient range of –25 °C to +70 °C.

M12 Connector and Test Input

A 4-pin M12 male connector provides a secure, vibration-resistant link to control cabinets. The built-in test input lets the sender be disabled by pulling the TE line to 0 V, allowing functional checks without interrupting the process. Circuit protection covers reverse polarity, short-circuit, overload and inductive kickback.

Highlights

  • Through-beam sensing up to 20 m range
  • Infrared LED with 2.8° dispersion angle
  • PNP dark-switching output at 250 Hz
  • IP67-rated PBT/PC housing for harsh environments
  • Operates from –25 °C to +70 °C on 10–30 V DC

Specifications

BrandSICK
ModelSICK VS/VE18-3P3840

Questions about this item

How do I wire the M12 4-pin connector for the PNP dark-switching output?

Connect the brown wire to 10–30 V DC, blue to 0 V, and black to the load; the test input (white) disables the sender when pulled to 0 V.

What part of the sensor needs periodic attention in a dusty environment?

Clean the radial lens faces on both emitter and receiver to maintain the 14 m sensing range and 700 mm spot size.

At what ambient temperature does the sensor reach its operating limit?

The rated ambient range stops at +70 °C; sustained exposure above this temperature will cause the unit to exceed its specification.

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