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Cylindrical M18 photoelectric sensor with M12 connector, grey PBT housing, 78 mm long

Sick

Sick VS/VE18-4P3740 Through-beam Photoelectric Sensor PNP

SKU CH-9F8P-BW2Q2

A through-beam photoelectric sensor with PNP output, 20 m maximum range and IP67 protection for industrial detection

  • 20 m sensing range with infrared LED detection
  • 250 Hz switching frequency for rapid response
  • PNP output with selectable light or dark switching
  • IP67 rated PBT/PC housing withstands harsh environments
  • M12 4-pin connector simplifies installation and wiring

Sensing Range and Detection

This through-beam photoelectric sensor delivers a maximum sensing range of 0 m to 20 m with a practical range of 0 m to 14 m. It uses an axial infrared LED with a dispersion angle of approximately 2.8 degrees, creating a 700 mm light spot at 14 m distance. Sensitivity is adjustable via a 270-degree potentiometer for precise detection tuning.

Electrical Integration and Mounting

The unit operates on 10 V DC to 30 V DC supply voltage with a maximum power consumption of 30 mA. It features a PNP switching output rated at 100 mA maximum current with selectable light or dark switching via the L/D control cable. Connection uses a male M12 4-pin connector, while the cylindrical M18 x 1 thread housing allows standard mounting in a 78 mm length.

Upgrade from Shorter-Range Sensors

This model replaces sensors with limited range or basic switching logic by offering extended 20 m reach and configurable output modes. The IP67 enclosure rating and operating temperature span of –25 °C to +70 °C suit harsh industrial environments where lesser sensors fail. Buyers needing AC supply voltages or non-PNP output types should consider alternative sensor families.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $71.99
Cheaper than about 68% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK VS/VE18-4P3740

Questions about this item

How far can the Sick VS/VE18-4P3740 reliably detect an object before the beam becomes too weak?

The sensor offers a maximum sensing range of 0 to 20 metres, with a specified operating range of 0 to 14 metres for consistent detection.

What is the power draw and heat rating when the sensor runs continuously on a 24 V supply?

It consumes 30 mA at 10 to 30 V DC with a 10 % ripple tolerance, and operates from –25 °C to +70 °C inside an IP67-rated PBT/PC housing.

Which connector and voltage must my control cabinet already provide for this PNP sensor?

A 4-pin M12 male connector and a 10 to 30 V DC supply are required; the output switches up to 100 mA in selectable light/dark mode.

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