SICK WTB9L-3N2261 Photoelectric Proximity Sensor

Selling Points

1Precise Detection: Reliable detection of small objects and fine details with advanced laser technology.
2Robust Housing: Tough VISTAL housing ensures mechanical stability and immunity to cleaning agents.
3High Sensitivity: Detects objects even through small openings and transparent materials with continuous switching threshold adjustment (CTA).
4Low Maintenance: Less machine downtime due to stable performance and easy adjustments.
5Versatile Connectivity: Multiple mounting options and wide range of connection options for seamless integration.

Detailed engineering parameters based on manufacturer documentation

Parameter	Value	Parameter	Value
Functional principle	Photoelectric proximity sensor	Functional principle detail	Background suppression
Dimensions (W x H x D)	12.2 mm x 49.8 mm x 23.6 mm	Housing design (light emission)	Rectangular
Mounting hole	M3	Sensing range max.	25 mm ... 300 mm
Sensing range	25 mm ... 300 mm	Type of light	Visible red light
Light source	Laser	Light spot size (distance)	Ø 1 mm (170 mm)
Wave length	650 nm	Laser class	1 (IEC 60825-1 / CDRH 21 CFR 1040.10 & 1040.11)
Adjustment	Potentiometer, 5 turns	Special applications	Detecting small objects
Supply voltage UB	10 V DC ... 30 V DC	Ripple	< 5 V
Current consumption	30 mA	Switching output	NPN
Output function	Complementary	Switching mode	Light/dark switching
Output current Imax.	≤ 100 mA	Response time	≤ 0.5 ms
Switching frequency	1,000 Hz	Connection type	Male connector M8, 4-pin
Circuit protection	A7)#!#B8)#!#C9)	Protection class	III
Weight	13 g	Housing material	Plastic, VISTAL®
Optics material	Plastic, PMMA	Enclosure rating	IP66#!#IP67#!#IP69K
Ambient operating temperature	–10 °C ... +50 °C	Ambient operating temperature extended	–30 °C ... +55 °C
Ambient temperature, storage	–30 °C ... +70 °C	UL File No.	NRKH.E181493

Specifications may be subject to change without notice