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Cylindrical plastic photoelectric proximity sensor with M12 connector

Sick

Sick VTE18-3E2740 Photoelectric Proximity Sensor NPN

SKU CH-7YG6-BEC87

Photoelectric proximity sensor detects objects from 3 mm to 170 mm using infrared LED with NPN light-switching output and M12 connector

  • Photoelectric detection up to 200 mm range
  • Infrared LED with narrow 2.8° dispersion angle
  • NPN light-switching output responds in 2 ms
  • IP67 plastic housing rated –25 °C to +70 °C
  • M12 4-pin connector runs on 10–30 V DC

Industrial photoelectric sensor NPN

The Sick VTE18-3E2740 is a cylindrical photoelectric proximity sensor with an NPN switching output. It operates on a 10 V DC to 30 V DC supply and connects via a male M12 4-pin connector. The plastic housing and PMMA optics meet IP67 enclosure rating for dust and water protection. It suits automation tasks requiring reliable object detection.

Sensing range and response limits

The sensor detects objects from 3 mm to 170 mm with a maximum range up to 200 mm using infrared LED light. A 2.8° angle of dispersion defines the detection beam width. Response time is 2 ms, which sets the minimum interval between reliable switching events. Potentiometer adjustment allows manual sensitivity tuning within these fixed optical limits.

NPN output decides compatibility

The single specification that determines fit is the NPN light-switching output type. Controllers or PLC inputs must accept NPN sinking signals; PNP-sourcing inputs will not work with this unit. Verify your control system requires NPN before purchase. The sensor is not for applications needing PNP output or analogue distance measurement.

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 VTE18-3E2740

Questions about this item

Which sensing range should I select for my application — the 3 mm to 200 mm maximum or the 3 mm to 170 mm standard range?

The 3 mm to 170 mm range is the rated operating distance; the 3 mm to 200 mm figure is the absolute maximum under ideal conditions. Choose the 170 mm value for reliable detection.

What does the 2 ms response time mean when the sensor is installed on a production line?

A 2 ms response time allows the sensor to switch its NPN output within two milliseconds of detecting an object, suitable for fast-moving parts on conveyors.

How does the M12 4-pin connector limit the wiring options for this NPN sensor?

The M12 4-pin connector provides power (10–30 V DC), ground, the NPN switching output and a spare pin; it requires a matching M12 cable or field-wireable plug.

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