SICK WTB4SL-3N1161 Miniature Photoelectric Sensor

sick WTB4SL-3N1161

Selling Points

1High Sensitivity: Detects objects with 90% reflectance based on standard white (DIN 5033).
2Long Service Life: Average service life of 50,000 hours at +25 °C.
3Versatile Range: Sensing range from 25 mm to 300 mm.
4Advanced Technology: Equipped with laser light source and background suppression for precise detection.
5Durable Design: IP66 and IP67 rated for harsh environments, with a compact rectangular housing.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Parameter	Value	Parameter	Value
Functional principle	Photoelectric proximity sensor	Functional principle detail	Background suppression
Sensing range max.	25 mm ... 300 mm	Sensing range	25 mm ... 300 mm
Emitted beam_Light source	Laser2)	Emitted beam_Type of light	Visible red light
Emitted beam_Light spot size (distance)	Ø 1 mm (170 mm)	Key laser figures_Normative reference	EN 60825-1:2014, IEC 60825-1:2014 / CDRH 21 CFR 1040.10 & 1040.11
Key laser figures_Laser class	1	Key laser figures_Wave length	650 nm
Adjustment	Potentiometer, 5 turns	Special applications	Detecting small objects
Mounting hole	M3	Supply voltage UB	10 V DC ... 30 V DC
Ripple	< 5 V	Current consumption	30 mA
Protection class	III	Digital output_Type	NPN4)
Digital output_Switching mode	Light/dark switching4)	Digital output_Output current Imax.	≤ 100 mA
Digital output_Response time	≤ 0.5 ms5)	Digital output_Switching frequency	1,000 Hz6)
Output function	Complementary	Circuit protection	A7)#!#B8)#!#C9)
Housing	Rectangular	Design detail	Slim
Dimensions (W x H x D)	12.2 mm x 41.8 mm x 17.3 mm	Connection	Cable, 4-wire, 2 m
Connection detail_Conductor size	0.14 mm²	Connection detail_Length of cable (L)	2 m1)
Material_Housing	Plastic, Novodur	Material_Front screen	Plastic, PMMA
Material_Cable	Plastic, PVC	Weight	100 g

Specifications may be subject to change without notice