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Small rectangular plastic sensor with red lens and cable

Sick

Sick WL4-3P3030S32 Photoelectric Retro-Reflective Sensor PNP

SKU CH-8NV7-WKB5J

Photoelectric retro-reflective sensor with PinPoint LED, 10–30 V DC supply, PNP output and 1400 mm cable

  • PinPoint LED gives visible red detection
  • Dual-lens retro-reflective sensing up to 4.5 m
  • PNP light-switching output at 1,000 Hz
  • IP67 and IP66 enclosure resists harsh environments
  • Compact 16 mm × 39.5 mm ABS housing weighs 30 g

Sick WL4-3P3030S32 Retro-Reflective Sensor

The Sick WL4-3P3030S32 is a photoelectric retro-reflective sensor with a PNP switching output and light-switching mode. It uses a PinPoint LED emitting visible red light at 650 nm wavelength. The housing measures 16 mm by 39.5 mm by 12 mm and weighs 30 grams. It operates on a 10 V DC to 30 V DC supply voltage with a maximum power consumption of 20 mA.

Automation Engineers Needing Fixed-Range Detection

This sensor suits engineers who need a pre-configured sensing range up to 3.5 metres and a switching frequency of 1,000 Hz. The response time is under 0.5 milliseconds. Builders requiring an adjustable sensing distance or a different output type such as NPN should look elsewhere. The fixed cable length of 1,400 mm with a Tyco connector may not fit every installation layout.

IP67 and IP66 Enclosure Rating

The rectangular ABS housing with PMMA optics carries both IP67 and IP66 enclosure ratings for dust and water ingress protection. It operates reliably across an ambient temperature range from –40 °C to +60 °C. The unit includes circuit protection classes A, C and D. UL file numbers NRKH.E181493 and NRKH7.E181493 are recorded for compliance reference.

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Price $93.99
Typical for this category: the median of 5,006 items is $95.99.

Specifications

Product
Brand nameSICK
Model nameSICK WL4-3P3030S32

Questions about this item

How far can the sensor reliably detect a reflector once it is installed?

The specified sensing range is 0.02 m to 3.5 m, so a reflector placed within that distance will be detected under normal conditions.

What supply voltage does the PNP output require and what load can it drive?

It operates on 10 V DC to 30 V DC and the PNP switching output can sink up to 100 mA.

What are the housing dimensions and cable length for mounting clearance?

The rectangular housing measures 16 mm wide by 39.5 mm high by 12 mm deep, and the PVC cable with Tyco connector is 1,400 mm long.

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