SICK WL250-2P2431 6044699 Retro-reflective Photoelectric Sensor PNP 15m

SICK WL250-2P2431 is a compact retro‑reflective photoelectric sensor from the W250‑2 series. Dual‑lens optics and a visible red LED light source provide reliable detection of opaque objects at distances up to 15 m. Its integrated polarising filter and versatile PNP output with selectable light/dark switching make it suitable for factory automation, packaging machinery, and logistics systems.

Applications:

• Object presence detection on conveyors and palletisers

• Packaging machinery for container and product positioning

• Automated assembly and production lines

• Warehouse and logistics automation systems

• Motion detection and process control in general industrial automation

Core Specifications:

• Functional principle: Photoelectric retro‑reflective sensor, dual‑lens system

• Sensing range max.: 0.01 m … 15 m (with PL80A reflector)

• Sensing range: 0.01 m … 12 m (with P250 reflector)

• Light source: LED, visible red light

• Light spot size: Ø 260 mm at 8 m

• Supply voltage: 10 V … 30 V DC

• Switching output: PNP

• Switching mode: Light/dark switching (selectable)

• Output current: ≤ 100 mA

• Response time: ≤ 0.5 ms

• Switching frequency: 1,000 Hz

• Connection type: M12 male connector, 4‑pin

• Adjustment: Potentiometer, 2 turns

• Polarising filter: Yes

• Enclosure rating: IP67

Advanced Specifications:

• Beam dispersion angle: approx. 2°

• Light spot size (distance): Ø 260 mm (8 m)

• Ambient operating temperature: –25 °C … +55 °C

• Ambient storage temperature: –40 °C … +70 °C

• No‑load current consumption: ≤ 20 mA

• Voltage drop: ≤ 2 V

• Overload, reverse polarity, and short‑circuit protected

• Housing material: Plastic (ABS)

• Optics material: Plastic (PMMA)

• Protection class: III

• UL File No.: NRKH2.E300503 & NRKH8.E300503

• MTTF D: 1,832 years

Mechanical Specifications:

• Housing design: Rectangular with axial beam exit

• Dimensions (W × H × D): 20 mm × 65 mm × 43.9 mm

• Housing length: 65 mm

• Weight: approx. 40 g

• Items supplied: Reflector P250, mounting bracket BEF‑W250

System Integration:

• Belongs to the SICK W250‑2 series of compact photoelectric sensors.

• Requires a separate reflector (PL80A for max. range or P250 for standard applications, included with the sensor).

• Mounts via the included BEF‑W250 bracket or direct mounting holes.

• Wire the M12 4‑pin male connector (pin 1: V+, pin 3: V‑, pin 4: output) to a PNP PLC input.

• Select light‑on or dark‑on switching mode via the control cable; adjust sensitivity using the 2‑turn potentiometer.

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

Related Products:

• PL80A – Fine triple reflector for max. 15 m range

• P250 – 47×47 mm rectangular reflector (included)

• BEF‑W250 – Mounting bracket (included)

• YF2A14‑020VB3XLEAX – M12 straight female connector cable, 4‑pin, 2 m, PVC