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Small rectangular plastic sensor with red LED lens and grey cable

Sick

Sick WTB4-3P1361 Miniature Photoelectric Sensor PNP

SKU CH-6YNE-T3EYS

Miniature photoelectric sensor with background suppression, 15 mm to 150 mm sensing range, PNP output, and IP67-rated ABS housing

  • Miniature 16 mm × 39.5 mm housing fits tight machine spaces
  • PinPoint LED gives a 7 mm spot at 50 mm for small-part detection
  • Background suppression ignores objects beyond 150 mm sensing range
  • PNP output switches in under 0.5 ms at 1,000 Hz frequency
  • IP67 and IP66 ratings withstand wash-down and dusty environments

Industrial proximity sensor

The Sick WTB4-3P1361 is a miniature photoelectric sensor with background suppression for detecting small objects at close range. It operates on 10 V DC to 30 V DC and provides a PNP light-switching output rated at 100 mA. The visible red PinPoint LED emits at 650 nm with a 7 mm spot at 50 mm distance.

Rectangular ABS housing IP67

The rectangular plastic housing measures 16 mm by 39.5 mm by 12 mm and weighs 30 g. It meets IP67 and IP66 enclosure ratings for dust and water resistance. A 2 m PVC cable with three 0.14 mm² conductors exits the sensor, protected against reverse polarity, short circuits and overvoltage.

Potentiometer adjustment 150 mm range

Sensing range spans 15 mm to 150 mm, adjustable via a 5-turn potentiometer for precise background suppression. Response time is under 0.5 ms at 1,000 Hz switching frequency. The sensor suits automation tasks needing reliable small-part detection but does not serve applications requiring longer range or non-contact measurement.

How it compares

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

Price $79.99
Cheaper than about 61% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WTB4-3P1361

Questions about this item

What sensing range does the WTB4-3P1361 cover with background suppression?

The sensor detects objects from 15 mm to 150 mm using visible red PinPoint LED at 650 nm wavelength.

What are the housing dimensions and mounting footprint of the WTB4-3P1361?

Rectangular ABS housing measures 16 mm wide by 39.5 mm high by 12 mm deep and weighs 30 g.

How is the WTB4-3P1361 wired and what supply voltage does it need?

A 2 m PVC cable with three 0.14 mm² conductors connects to a 10 V DC to 30 V DC supply; PNP light-switching output drives up to 100 mA.

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