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Small rectangular plastic sensor with cable and stainless bracket, 11 by 31 by 20 mm

Sick

Sick WT100L-E1131 Photoelectric Retro-reflective Sensor NPN

SKU CH-NGW0-059W6

A photoelectric retro-reflective sensor with laser light source detects small or fast-moving objects up to 12 m and switches at 2,000 Hz

  • Laser precision detects tiny, fast objects at 2,000 Hz
  • 12 m range with visible red laser class 1
  • NPN light/dark switching selectable by 270° potentiometer
  • IP65 ABS housing survives dust and water jets
  • 2 m PVC cable and stainless bracket included for quick install

Photoelectric Retro-reflective Sensor NPN

The Sick WT100L-E1131 is a laser-based photoelectric retro-reflective sensor with an NPN switching output. It detects objects up to 12 m away using visible red light at 650 nm. The rectangular ABS/PC/POM housing measures 11 mm x 31 mm x 20 mm and weighs 50 g. It includes a stainless steel mounting bracket and a P250F reflector.

Check Supply Voltage And Wiring

Verify that your system provides 10 V DC to 30 V DC with a ripple of ± 10 %. The sensor draws 30 mA and connects via a 2 m, 3-wire PVC cable with a 0.18 mm² cross-section. Ensure the NPN output logic matches your controller and that the 100 mA maximum output current is sufficient for the load.

Suits Fast Small-Object Detection

This sensor suits applications detecting small objects or items moving at high speeds, with a response time under 0.25 ms and a 2,000 Hz switching frequency. The IP65 rating handles dust and water jets. Buyers needing a PNP output, a different sensing principle, or a connectorised cable instead of a flying lead should look at other models.

How it compares

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

Price $192.99
Pricier than about 77% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameSICK
Model nameSICK WT100L-E1131

Questions about this item

Does the sensor come with a reflector and bracket, or must they be purchased separately?

The package includes a stainless steel mounting bracket BEF-W100-A and a P250F reflector, so no extra items are required for standard retro-reflective operation.

Which sensing range figure should I use when planning the installation?

Use the 0.08 m to 10 m sensing range for reliable detection; the 12 m maximum is only achievable under ideal conditions.

What does the 2,000 Hz switching frequency mean for a high-speed production line?

It allows the sensor to detect objects moving at high speeds with a response time under 0.25 ms, suitable for fast automation tasks.

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