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Cylindrical plastic sensor with angled head and 2 m PVC cable

Sick

Sick VTF18-4N1912 Photoelectric Proximity Sensor NPN

SKU CH-QC5M-FH2T1

A photoelectric proximity sensor detecting objects from 3 mm to 100 mm using infrared LED light with NPN output and IP67 protection

  • NPN output simplifies integration with standard PLC inputs
  • Infrared LED detects objects from 3 mm to 90 mm
  • IP67 enclosure resists dust and water ingress
  • Potentiometer allows quick sensing-range adjustment
  • 2 m PVC cable eases installation in tight spaces

Sick VTF18-4N1912 proximity sensor

The Sick VTF18-4N1912 is a cylindrical photoelectric proximity sensor with an NPN switching output. It detects objects using an infrared LED across a sensing range of 3 mm to 100 mm. The plastic housing carries an IP67 enclosure rating and operates from –25 °C to +70 °C. It suits electricians and automation technicians who need a compact presence detector for conveyors or machine guarding.

Replacing older diffuse sensors

This unit replaces legacy diffuse sensors that lack a potentiometer for range adjustment or a selectable light/dark switching mode. The jump is worthwhile when an application requires a 2 ms response time and a 10 V DC to 30 V DC supply with ripple below 10 %. It is not for buyers who need a sensing distance beyond 100 mm or a PNP output stage.

Straightforward cable installation

A 2 m PVC cable with 0.14 mm² conductors and a 5 mm outer diameter simplifies wiring in tight cabinets. The L/D control cable selects the switching mode without opening the housing. Common issues include misalignment of the angled optics and exceeding the 30 mA power budget on long cable runs. Ensure the supply voltage stays within the specified window to avoid erratic switching.

How it compares

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

Price $77.99
Cheaper than about 63% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK VTF18-4N1912

Questions about this item

What are the housing dimensions and mounting style of the VTF18-4N1912?

The cylindrical angled housing measures 60.6 mm and is designed for side‑looking installation.

How do I wire the NPN output and set the light/dark switching on this sensor?

Connect the 2 m PVC cable to a 10‑30 V DC supply; use the L/D control wire to choose light or dark switching.

What ongoing checks does the IP67‑rated VTF18-4N1912 need in a –25 °C to +70 °C environment?

Inspect the cable jacket and PMMA optics periodically for abrasion or contamination; clean the lens if sensing range drops.

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