WTB9-3P3261 Photoelectric Proximity Sensor by SICK

Selling Points

1The WTB9-3P3261 features a PinPoint LED for a bright, precise light spot, ensuring accurate detection of objects.
2Equipped with best-in-class background suppression, it reliably detects critical objects even in challenging ambient light conditions.
3With advanced diagnostics and visualization via IO-Link, the sensor offers flexible settings for monitoring and configuration.
4The sensor's high immunity to ambient light reduces downtime caused by false trips, ensuring reliable operation.
5Designed for quick and easy integration using function blocks, it simplifies setup and reduces maintenance costs due to its rugged mounting system.

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 50 mm x 23.6 mm	Housing design (light emission)	Rectangular
Mounting hole	M3	Sensing range max.	20 mm ... 350 mm
Sensing range	20 mm ... 200 mm	Type of light	Visible red light
Light source	PinPoint LED	Light spot size (distance)	Ø 4.5 mm (75 mm)
Wave length	650 nm	Adjustment	Potentiometer, 5 turns
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	< 0.333 ms
Switching frequency	1,500 Hz	Connection type	Cable with M8 male connector, 4-pin, 120 mm
Cable material	Plastic, PVC	Conductor cross section	0.14 mm²
Circuit protection	A9)#!#B10)#!#C11)	Protection class	III
Weight	80 g	Housing material	Plastic, VISTAL®
Optics material	Plastic, PMMA	Enclosure rating	IP66#!#IP67#!#IP69K
Ambient operating temperature	–40 °C ... +60 °C	Ambient temperature, storage	–40 °C ... +75 °C
UL File No.	NRKH.E181493

Specifications may be subject to change without notice