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Cylindrical metal sensor with M12 connector, 78 mm long

Sick

Sick VTE18-3E2140 Photoelectric Proximity Sensor NPN

SKU CH-RMNG-5XNCG

Photoelectric proximity sensor detects objects from 3 mm to 170 mm using infrared LED with NPN light-switching output in a 78 mm cylindrical metal housing rated IP67 for –25 °C to +70 °C operation

  • NPN output integrates with standard PLC inputs
  • Sensing range up to 200 mm for flexible mounting
  • IP67 enclosure resists dust and water ingress
  • Operates from –25 °C to +70 °C in harsh environments
  • 10–30 V DC supply suits common industrial power rails

Industrial photoelectric sensor for automation

The Sick VTE18-3E2140 is a cylindrical photoelectric proximity sensor designed for industrial detection tasks. It operates on a 10 V DC to 30 V DC supply with an NPN switching output configured for light switching. The metal housing with brass nickel-plated finish and PMMA optics meets IP67 enclosure rating for harsh environments.

Potentiometer adjustment sets sensing distance

A built-in potentiometer allows adjustment of the sensing range between 3 mm and 170 mm, with a maximum reach of 200 mm. The infrared LED emits a narrow 2.8° dispersion angle for precise object detection. Response time is 2 ms, and the unit connects via a standard male M12 4-pin connector for quick installation.

Verify voltage and output compatibility first

Ensure your control system accepts an NPN light-switching signal and provides a 10 V DC to 30 V DC supply within the 10 % ripple limit. Confirm the M12 4-pin wiring matches your cable assembly pinout. The sensor operates from –25 °C to +70 °C, so check that ambient conditions stay within this range.

Highlights

  • NPN output integrates with standard PLC inputs
  • Sensing range up to 200 mm for flexible mounting
  • IP67 enclosure resists dust and water ingress
  • Operates from –25 °C to +70 °C in harsh environments
  • 10–30 V DC supply suits common industrial power rails

Specifications

BrandSick
ModelSICK VTE18-3E2140

Questions about this item

Will the potentiometer or the M12 connector need replacement first?

The potentiometer is a mechanical adjuster that can wear with frequent turning, while the M12 4-pin connector is rated for repeated mating cycles; either may need service depending on how often you adjust range or disconnect the sensor.

What limits continuous operation — the 30 mA draw or the 70 °C ambient ceiling?

The sensor draws a constant 30 mA from a 10–30 V DC supply, but the hard limit is the +70 °C ambient operating temperature; exceeding it risks permanent damage regardless of current draw.

How much heat does the brass housing dissipate during all-day running?

At 30 mA the sensor generates minimal heat; the nickel-plated brass housing and IP67 enclosure passively dissipate it, so surface temperature stays close to ambient even during continuous 24-hour operation.

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