SICK WTB9M4L-3P2261 Photoelectric Proximity Sensor

Selling Points

1Compact Design: The WTB9M4L-3P2261 features a small, rectangular housing made from VISTAL plastic, measuring 12.2 mm x 49.8 mm x 23.6 mm.
2Background Suppression: Equipped with background suppression technology for improved accuracy in detecting small objects.
3Visible Red Light: Uses visible red light with a wavelength of 650 nm, providing clear detection in various environments.
4PNP Switching Output: Offers a PNP switching output for easy integration into your automation system.
5High Sensing Range: Detects objects from 25 mm to 300 mm with high accuracy, making it suitable for diverse industrial applications.

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	M4	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	PNP
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