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Small rectangular plastic sensor, red front lens, grey cable exiting rear

Sick

Sick WL9-3P1130 photoelectric sensor PNP 4 m range 2 m cable

SKU CH-7X1F-QQTY7

Photoelectric retro-reflective sensor with 4 m maximum range, PNP complementary output, 2 m PVC cable and IP66/IP67/IP69K enclosure

  • Precise detection up to 4 m with PinPoint LED
  • PNP complementary output switches in under 0.5 ms
  • IP66 IP67 IP69K rating withstands harsh environments
  • Operates from –40 °C to +60 °C without derating
  • Compact 12.2 × 50 × 23.6 mm housing fits tight spaces

Compact photoelectric sensor for short-range

The Sick WL9-3P1130 is a rectangular retro-reflective sensor with autocollimation that detects objects from 0 m up to 4 m. It emits visible red light at 650 nm from a PinPoint LED and produces a 45 mm spot at 1.5 m distance. The PNP complementary output switches at 1,000 Hz with a response time below 0.5 ms. It is aimed at electricians and automation engineers who need a small, cable-connected presence detector.

Low power draw and sealed housing for harsh

The unit operates on 10 V DC to 30 V DC with ripple under 5 Vpp and consumes only 30 mA. Its plastic VISTAL housing and PMMA optics meet IP66, IP67 and IP69K ratings, so it resists high-pressure wash-down and dust ingress. The PVC cable is 2 m long with four 0.14 mm² conductors and the sensor weighs 80 g. It functions from –40 °C to +60 °C without active cooling or audible noise.

4 m maximum sensing range decides the application

The sensor’s longest reliable detection distance is 4 m, with a guaranteed sensing range of 2.5 m. Buyers who need longer reach or a fibre-optic variant should look elsewhere. The fixed cable and M3 mounting holes suit permanent installations where a connectorized version would add bulk.

How it compares

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

Price $116.99
Pricier than about 58% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WL9-3P1130

Questions about this item

How do I mount the WL9-3P1130 sensor and which step is often missed?

Use the M3 mounting holes on the 12.2 mm x 50 mm x 23.6 mm rectangular housing; the step often missed is aligning the PinPoint LED spot (Ø 45 mm at 1.5 m) with the reflector for autocollimation.

What maintenance or replacement will the WL9-3P1130 need over time?

The 2 m PVC cable (0.14 mm² conductors) may need replacement if damaged; the plastic VISTAL® housing and PMMA optics should be cleaned periodically to maintain the IP66/IP67/IP69K seal.

What is the first limit reached during sustained operation of the WL9-3P1130?

The 1,000 Hz switching frequency and <0.5 ms response time set the speed limit; the 100 mA PNP output current and 30 mA power consumption define the thermal limit at up to 60 °C ambient.

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