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Cylindrical nickel-plated brass sensor, M18 thread, 78 mm long, M12 connector, IP67

Sick

Sick VL18-3E3140 photoelectric retro-reflective sensor NPN

SKU CH-F6B5-3ZZFE

Photoelectric retro-reflective sensor with M18 cylindrical metal housing, NPN light-switching output, 0.05 m to 3.7 m range, IP67 rated, M12 connector

  • Retro-reflective sensing up to 3.7 m range
  • Visible red LED spot Ø 150 mm at 3 m
  • NPN light-switching output 100 mA max
  • M12 4-pin connector for quick wiring
  • IP67 nickel-plated brass housing –25 °C to +70 °C

Sick VL18-3E3140 retro-reflective sensor

The Sick VL18-3E3140 is a cylindrical photoelectric retro-reflective sensor built for industrial detection tasks. It operates on 10 V DC to 30 V DC supply voltage and provides an NPN light-switching output with a maximum load of 100 mA. The metal nickel-plated brass housing carries an IP67 enclosure rating for harsh environments.

Ideal for fixed-range presence detection

This sensor suits applications needing a preset sensing window of 0.05 m to 3 m with visible red LED light. The 2 ms response time and 250 Hz switching frequency support reliable cycling on conveyors or packaging lines. Buyers who need adjustable sensitivity or teach-in configuration should look at a different model.

M12 4-pin connector fixes the wiring

The only connection type offered is a male M12 4-pin connector, so the control cabinet must provide a matching socket and cable assembly. No flying-lead or terminal-block option exists for this housing. Verify the pin-out matches your PLC input card before ordering.

How it compares

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

Price $70.99
Cheaper than about 69% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSick
Model nameSICK VL18-3E3140

Questions about this item

What comes in the box with the VL18-3E3140 and what must be purchased separately?

The sensor housing includes the M12 4-pin male connector. A compatible M12 cable, a reflector for the retro-reflective beam, and a 10–30 V DC power supply are not included.

Which sensing range version should I choose for the VL18-3E3140?

This model offers a maximum range of 0.05 m to 3.7 m and a specified range of 0.05 m to 3 m. Choose based on the distance to your reflector and the required reliability margin.

What does the 250 Hz switching frequency mean when the VL18-3E3140 is installed on a line?

The sensor can change its NPN output state up to 250 times per second, allowing it to detect objects spaced as little as 4 ms apart on a moving conveyor.

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