SICK WL4S-3N1130H Reflective Type Sensor

Selling Points

1High Accuracy: Detects objects with pinpoint LED light, ensuring precise sensing up to 2.5 meters.
2Hygienic Design: Built with stainless steel housing and PMMA front screen, perfect for harsh environments.
3Compact Size: Measures 15.25 mm x 48.6 mm x 22.2 mm, ideal for space-constrained applications.
4Digital Output: Provides NPN digital output with light/dark switching mode, ensuring clear signal transmission.
5Durable & Reliable: Operates at -30°C to +70°C with IP66 to IP69K enclosure rating, ensuring long-lasting performance.

Detailed engineering parameters based on manufacturer documentation

Parameter	Value	Parameter	Value
Functional principle	Photoelectric retro-reflective sensor	Functional principle detail	Without reflector minimum distance (autocollimation/coaxial optics)
Sensing range max.	0 m ... 4 m	Sensing range	0 m ... 2.5 m
Polarisation filters	Yes	Emitted beam_Light source	PinPoint LED2)
Emitted beam_Type of light	Visible red light	Emitted beam_Light spot size (distance)	Ø 45 mm (1.5 m)
Key LED figures_Wave length	650 nm	Adjustment	None
Special applications	Hygienic and washdown zones	Housing design	Hygiene
Supply voltage UB	10 V DC ... 30 V DC	Ripple	< 5 V
Current consumption	30 mA	Protection class	III
Digital output_Type	NPN	Digital output_Switching mode	Light/dark switching
Digital output_Output current Imax.	≤ 100 mA	Digital output_Response time	< 0.5 ms4)
Digital output_Switching frequency	1,000 Hz5)	Circuit protection	A, B, C
Housing	Rectangular	Design detail	Slim
Dimensions (W x H x D)	15.25 mm x 48.6 mm x 22.15 mm	Connection	Cable, 4-wire, 2 m
Connection detail_Conductor size	0.14 mm²	Connection detail_Length of cable (L)	2 m1)
Material_Housing	Stainless steel, Stainless steel V4A (1.4404, 316L)	Material_Front screen	Plastic, PMMA
Material_Cable	Plastic, PVC	Weight	80 g

Specifications may be subject to change without notice