SICK WTB9-3P2261 1049047 Photoelectric Proximity Sensor PNP 350mm

SICK WTB9-3P2261 is a photoelectric proximity sensor with background suppression (W9‑3 series). Visible red light from a PinPoint LED source ensures a consistent Spot‑shaped light spot (Ø 4.5 mm at 75 mm). A 5‑turn potentiometer adjusts the sensing threshold. Typical applications include object positioning on high‑speed conveyors (up to 1,500 Hz switching frequency), material handling and packaging machinery.

Applications:

• Object presence / positioning on high‑speed conveyor systems (Up to 1,500 Hz switching frequency)

• Material handling and logistics automation

• Packaging machinery and assembly lines

• Factory automation in challenging environments (VISTAL® housing, IP69K, –40 °C … +60 °C)

Core Specifications:

• Functional principle: Photoelectric proximity sensor (background suppression)

• Sensing range max.: 20 mm … 350 mm (90 % reflectance white)

• Sensing range: 20 mm … 200 mm (6 % reflectance)

• Light source: PinPoint LED, visible red light (λ = 650 nm)

• Light spot size (distance): Ø 4.5 mm (75 mm)

• Supply voltage: 10 V DC … 30 V DC

• Switching output: PNP complementary

• Switching mode: Light/dark switching (selectable via L/D control cable)

• Output current Imax.: ≤ 100 mA

• Response time: < 333 µs

• Switching frequency: 1,500 Hz

• Adjustment: Potentiometer, 5 turns

• Connection type: Male connector M8, 4‑pin

Advanced Specifications:

• Enclosure rating: IP66 / IP67 / IP69K

• Housing material: VISTAL® plastic (high mechanical stability)

• Optics material: Plastic, PMMA

• Dimensions (W × H × D): 12.2 mm × 49.8 mm × 23.6 mm

• Weight: 13 g

• Protection circuits: A (reverse‑polarity), B (inputs/outputs reverse‑polarity), C (interference suppression)

• Protection class: III

• Ambient operating temperature: –40 °C … +60 °C

• Storage temperature: –40 °C … +75 °C

• UL File No.: NRKH.E181493

• RoHS compliant

System Integration:

• Belongs to SICK W9‑3 series of compact photoelectric sensors.

• The M8 4‑pin male connector mates with standard industrial M8 female cables.

• The sensor offers flexible integration into standard industrial control systems via the PNP complementary output (selectable light/dark switching).

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information (CE, cULus, RoHS).

Related Products:

• WTB9‑3N2261 – NPN output variant

• WTB9‑3P2261S01 – variant with M12 4‑pin male connector

• BEF‑W9A – mounting bracket for flexible sensor positioning

• YF2A08‑xxxVB3XLEAX – M8 straight female connector cable, 4‑pin, various lengths (2 m, 5 m, 10 m), PVC

• YG2A08‑xxxVB3XLEAX – M8 angled female connector cable, 4‑pin, various lengths