SICK WTB4SP-1G311220ZZZ Photoelectric Sensor

Selling Points

1Background Suppression: Enhances detection accuracy by minimizing false triggers from background reflections.
2NarrowBeam Technology: Provides precise detection with a focused light beam, reducing interference.
3Adjustable Sensing Range: Offers flexibility with a sensing range from 4 mm to 130 mm, customizable for different applications.
4High Sensitivity: Detects objects as small as 0.1 mm at a distance of 70 mm, ensuring reliable performance.
5Durable Design: Built with a robust plastic housing (VISTAL®) and IP66/67 rating for protection against harsh environments.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Parameter	Value	Parameter	Value
Functional principle	Photoelectric proximity sensor	Functional principle detail	Background suppression, NarrowBeam
Sensing range_Sensing range min.	4 mm	Sensing range_Sensing range max.	130 mm
Sensing range_Adjustable switching threshold for background suppression	10 mm ... 130 mm	Sensing range_Reference object	Object with 90% remission factor (complies with standard white according to DIN 5033)
Sensing range_Minimum distance between set sensing range and background (black 6% / white 90%)	0.5 mm, At 70 mm distance	Sensing range_Recommended sensing range for the best performance	20 mm ... 90 mm
Emitted beam_Light source	PinPoint LED	Emitted beam_Type of light	Visible red light
Emitted beam_Shape of light spot	Point-shaped	Emitted beam_Light spot size (distance)	1.8 mm (70 mm)
Emitted beam_Maximum dispersion of the emitted beam around the standardized transmission axis (squint angle)	< +/- 1.5° (at Ta = +23 °C)	Focus position	70 mm
Key LED figures_Normative reference	EN 62471:2008-09 \| IEC 62471:2006, modified	Key LED figures_LED risk group marking	Free group
Key LED figures_Wave length	635 nm	Key LED figures_Average service life	100,000 h at Ta= +25 °C
Smallest detectable object (MDO) typ.	0.1 mm (At 70 mm distance)	Smallest detectable object (MDO) typ.	Object with 90% remission factor (complies with standard white according to DIN 5033)
Adjustment_Teach-Turn adjustment	BluePilot: For setting the sensing range	Indication_LED blue	BluePilot: sensing range indicator
Indication_LED green	Operating indicatorStatic on: power on	Indication_LED yellow	Status of received light beamStatic on: object presentStatic off: object not present
Special applications	Detecting uneven, shiny objects, Detection of poorly remitting and tilted objects	Supply voltage UB	10 V DC ... 30 V DC
Ripple	≤ 5 V	Usage category	DC-12 (According to EN 60947-5-2)#!#DC-13 (According to EN 60947-5-2)
Current consumption	≤ 20 mA, without load. At U#!#= 24 V	Protection class	III
Digital output_Number	1	Digital output_Type	Push-pull: PNP/NPN
Digital output_Switching mode	Light switching	Digital output_Signal voltage PNP HIGH/LOW	Approx. UB-2.5 V / 0 V
Digital output_Signal voltage NPN HIGH/LOW	Approx. UB/ < 2.5 V	Digital output_Output current Imax.	≤ 100 mA
Digital output_Circuit protection outputs	Reverse polarity protected	Digital output	Overcurrent protected
Digital output	Short-circuit protected	Digital output_Response time	≤ 500 µs
Digital output_Repeatability (response time)	150 µs	Digital output_Switching frequency	1,000 Hz
Pin/Wire assignment_Function of pin 4/black (BK)	Digital output, light switching, object present → output Q HIGH2)	Housing	Rectangular
Design detail	Slim	Dimensions (W x H x D)	12.1 mm x 41.9 mm x 18.6 mm
Connection	Cable, 3-wire, 2 m	Connection detail_Deep-freeze property	Do not bend below 0 °C
Connection detail_Conductor size	0.14 mm²	Connection detail_Cable diameter	Ø 3.4 mm
Connection detail_Length of cable (L)	2 m	Material_Housing	Plastic, VISTAL®
Material_Front screen	Plastic, PMMA	Material_Cable	Plastic, PVC
Maximum tightening torque of the fixing screws	0.4 Nm

Specifications may be subject to change without notice