SICK WTF12-3P2431 W12-3 Photoelectric Proximity Sensor PNP 175mm

SICK WTF12-3P2431 is a photoelectric proximity sensor with foreground suppression from the W12-3 series. The detection principle reliably separates the target object from the background. The visible red LED light source（640 nm wavelength） produces a Ø 2 mm light spot at 60 mm. 5‑turn potentiometer adjusts the sensing threshold. PNP complementary output with selectable light/dark switching. M12 4‑pin male connector. Compact metal housing（15.6 mm × 48.5 mm × 42 mm） rated IP66 / IP67 / IP69K. Designed for detecting flat objects in harsh industrial environments.

Applications:

• Flat object detection on conveyor and sorting systems

• Packaging machinery for product positioning and counting

• Assembly automation for small parts presence monitoring

• Material handling and logistics systems

Core Specifications:

• Sensing principle: Photoelectric proximity sensor, foreground suppression

• Sensing range max.: 30 mm … 175 mm

• Light source: LED, visible red light（λ = 640 nm）

• Light spot size（distance）: Ø 2 mm（60 mm）

• Supply voltage: 10 V DC … 30 V DC

• Switching output: PNP, complementary

• Switching mode: Light/dark switching（selectable）

• Output current: ≤ 100 mA

• Response time: ≤ 330 µs

• Switching frequency: 1,500 Hz

• Adjustment: Potentiometer, 5 turns

• Connection type: Male connector M12, 4‑pin

Advanced Specifications:

• Enclosure rating: IP66 / IP67 / IP69K

• Housing material: Metal

• Optics material: Plastic, PMMA

• Dimensions（W × H × D）: 15.6 mm × 48.5 mm × 42 mm

• Weight: 120 g

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

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

• Circuit protection: A（reverse polarity）, C（interference suppression）, D（overcurrent and short‑circuit）

• Items supplied: 2 × clamps BEF‑KH‑W12 with screws

System Integration:

• Belongs to SICK W12‑3 series of compact photoelectric sensors.

• Mounts via dovetail slot, through‑holes or using supplied clamps BEF‑KH‑W12.

• M12 4‑pin male connector interfaces with standard industrial M12 female cables.

• Select light‑on or dark‑on mode via L/D selector; adjust sensing threshold by turning the 5‑turn potentiometer.

Standards & Compliance:
Refer to manufacturer official documentation for certification and compliance details.

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