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Cylindrical M18 plastic sensor with radial lens and M12 connector

Sick

Sick VTE18-3F4940 photoelectric proximity sensor PNP

SKU CH-4VEE-23CA7

A cylindrical photoelectric proximity sensor with PNP output, 5–350 mm sensing range, infrared LED, potentiometer adjustment, M12 connector, IP67 rating, and –25 °C to +70 °C operating temperature

  • Energetic photoelectric detection up to 400 mm range
  • Infrared LED with 2.8° dispersion for focused sensing
  • PNP light-switching output at 250 Hz switching frequency
  • M18 cylindrical housing with IP67 enclosure rating
  • Potentiometer adjustment over 270° for precise range setting

Sick VTE18-3F4940 photoelectric sensor

The Sick VTE18-3F4940 is a cylindrical photoelectric proximity sensor that uses energetic detection with an infrared LED. It provides a PNP light-switching output for industrial automation and sensing tasks. The M18 threaded housing measures 75 mm in length and weighs 100 g. It is built for electricians and engineers who need reliable object detection in compact spaces.

Sensing range and output constraints

The sensor operates from 5 mm to 350 mm with a maximum reach of 400 mm and a 2.8° dispersion angle. At 400 mm the light spot is Ø 20 mm. Switching frequency is 250 Hz with a 2 ms response time. The output handles up to 100 mA. Supply voltage must stay between 10 V DC and 30 V DC with ripple below 10 %. Potentiometer adjustment covers 270° for range setting.

Installation checklist

Verify that your control system accepts a PNP light-switching signal and a 4-pin M12 male connector. Ensure the 10–30 V DC supply meets the ripple specification. Confirm the IP67 rating and –25 °C to +70 °C temperature range suit the mounting environment. The radial optical axis and M18 thread require a matching cut-out and clearance for the 75 mm housing length.

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 VTE18-3F4940

Questions about this item

Which sensing-range version should I choose for this sensor?

The sensor offers a maximum sensing range of 5 mm to 400 mm and a standard sensing range of 5 mm to 350 mm. Choose based on the required detection distance for your application.

What does the 250 Hz switching frequency mean in actual use?

The sensor can complete up to 250 switching cycles per second with a response time of 2 ms, suitable for detecting objects on fast-moving conveyors or machinery.

What does the M12 4-pin connector cap in practice?

The M12 4-pin male connector provides the interface for 10–30 V DC supply, PNP light-switching output up to 100 mA, and circuit protection within an IP67-rated housing.

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