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Cylindrical angled plastic sensor housing 75 mm with M12 connector

Sick

Sick VTF18-3N5840 photoelectric proximity sensor NPN

SKU CH-8F3S-PM7NM

Photoelectric proximity sensor detects objects up to 45 mm with NPN dark-switching output and IP67 housing

  • Detects objects up to 45 mm with infrared LED
  • Adjustable sensing via built-in potentiometer
  • NPN dark-switching output responds in 2 ms
  • IP67 housing withstands –25 °C to +70 °C
  • M12 4-pin connector runs on 10–30 V DC

Industrial proximity sensor

The Sick VTF18-3N5840 is a photoelectric proximity sensor with an NPN switching output designed for industrial automation tasks. It detects objects using infrared LED light within a cylindrical angled housing measuring 75 mm. The unit operates on a 10 V DC to 30 V DC supply voltage with a maximum power consumption of 30 mA. It suits engineers integrating presence detection into conveyor or packaging lines.

Build integration details

The sensor connects via a male M12 4-pin connector requiring a compatible cable assembly for power and signal. Its plastic housing and PMMA optics achieve an IP67 enclosure rating for dust and water resistance. The sensing range reaches up to 50 mm with a usable range of 45 mm, adjustable via an onboard potentiometer. Dark switching mode activates the output when the beam is interrupted.

Sustained operation behaviour

Response time is rated at 2 ms, allowing reliable detection in continuous cycling applications. The device maintains performance across an ambient operating temperature span of –25 °C to +70 °C. Ripple tolerance is specified at 10 % on the supply line. UL file NMFT2.E175606 confirms compliance for relevant safety standards.

How it compares

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

Price $87.99
Cheaper than about 55% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK VTF18-3N5840

Questions about this item

How far can the sensor reliably detect an object before the sensing range limit is reached?

The sensing range is 0 mm to 45 mm, with a maximum of 0 mm to 50 mm under ideal conditions.

What is the power consumption and enclosure rating during continuous operation?

Power consumption is 30 mA and the enclosure rating is IP67 for dust and water protection.

What voltage supply and connector type are required to install this sensor?

It requires a 10 V DC to 30 V DC supply and connects via a male M12 4-pin connector.

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