SICK WL12L-2B520 1018253 Laser Retro‑reflective Photoelectric Sensor PNP/NPN 15m

SICK WL12L‑2B520 is a high‑performance retro‑reflective photoelectric sensor utilizing a visible red laser (650 nm) for precise long‑range object detection in industrial applications. It provides a maximum sensing range of 15 m when used with a PL80A reflector and delivers a highly focused Ø 0.8 mm light spot at 300 mm for reliable detection of small parts. IP67 enclosure, plus integrated polarising filter that enables stable detection of shiny, transparent, and brightly coloured objects.

Applications:

• Packaging machinery (transparent film, glass and plastic bottle detection)

• High‑speed conveyor systems

• Automated assembly and pick‑and‑place lines

• Material handling and logistics

• General factory automation

Core Specifications:

• Sensor principle: Photoelectric retro‑reflective, autocollimation

• Sensing range max.: 0 … 15 m (with PL80A reflector)

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

• Laser class: 2 (IEC 60825‑1:2014)

• Light spot size: Ø 0.8 mm (at 300 mm)

• Adjustment: Focusable from 150 mm to 450 mm

• Supply voltage: 10 … 30 V DC

• Switching output: PNP, NPN (selectable)

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

• Output current: ≤ 100 mA

• Response time: ≤ 200 µs

• Switching frequency: 2,500 Hz

• Current consumption: 55 mA typical (no‑load)

• Enclosure rating: IP67

• Polarising filter: Integrated

• Potentiometer adjustment: Yes

Mechanical Specifications:

• Housing design: Rectangular

• Dimensions (W×H×D): 15 mm × 49 mm × 41.5 mm

• Housing material: Zinc die‑cast

• Optics material: PMMA plastic

• Weight: approx. 123 g

• Connection type: M12 male connector, 5‑pin

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

Advanced Specifications:

• Ambient operating temperature: –10 °C … +50 °C

• Storage temperature: –25 °C … +75 °C

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

• Protection class: III

• UL File No.: NRKH.E181493 & NRKH7.E181493

• MTBF (mean time between failures): 448 years

System Integration:

• This sensor belongs to the SICK W12‑2 Laser series.

• A separate reflector is required for operation (e.g., PL80A for max. range).

• Mounts via M4 through‑holes (25.4 mm spacing) using the supplied BEF‑KH‑W12 clamps.

• M12 5‑pin male connector mates with standard industrial M12 female cables.

• Select output logic (PNP/NPN) and switching mode (light/dark) via the L/D control cable.

• Adjust sensing threshold using the integrated potentiometer for precise detection.

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

Related Products:

• PL80A – fine triple reflector for max. 15 m range (required for full sensing distance)

• P250 – 47×47 mm rectangular reflector for standard range

• YF2A15‑xxxUB5M2A15 (2096009, 2096010, 2096011) – M12 straight female connector cable, 5‑pin, A‑coded, PUR, various lengths (2 m, 5 m, 10 m)

• YG2A15‑xxxUB5M2A15 – M12 angled female connector cable, 5‑pin, various lengths