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Photoelectric Retro-Reflective Sensor | Dual Lens System | IP66/IP67/IP69 Rated | by SICK

BRAND: SICK
SKU: 1129442
$301.20 List price: $378.60
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The Photoelectric Retro-Reflective Sensor WLD4FP-228121A0ZZZ features a dual lens system and a sensing range of 0 m to 4.5 m, making it ideal for industrial automation and safety applications. With a robust IP66/IP67/IP69 rated enclosure, it withstands harsh environments while providing reliable object detection and presence sensing in manufacturing lines.
Technical Specifications
  • Functional principle: Photoelectric retro-reflective sensor with dual lens system
  • Sensing range: 0 m to 4.5 m; recommended 0.035 m to 3.9 m
  • Light source: PinPoint LED, visible red light, 635 nm wavelength
  • LED risk group: Free group according to EN 62471
  • Supply voltage: 10 V DC to 30 V DC
  • Current consumption: ≤ 20 mA at 24 V
  • Digital outputs: 2 complementary PNP outputs, light/dark switching
  • Response time: ≤ 500 µs; switching frequency: 1000 Hz
  • Protection class: III
  • Enclosure rating: IP66, IP67, IP69
  • Operating temperature: -40°C to +60°C
  • Shock resistance: 30 g, 11 ms
  • Vibration resistance: 10 Hz to 1000 Hz, amplitude 1 mm
  • Housing material: Plastic VISTAL®; Front screen: Plastic PMMA
  • Connection: Male M8, 4-pin connector
  • Dimensions (H x L x W): 40mm x 12mm x 16mm
  • Weight: 0.1 kg
Key Features
  • Photoelectric retro-reflective sensor with dual lens system
  • Sensing range from 0 m to 4.5 m with recommended range 0.035 m to 3.9 m
  • Visible red light PinPoint LED with 635 nm wavelength
  • High LED service life of 100,000 hours at 25°C
  • IP66, IP67, and IP69 rated enclosure for harsh environments
  • Shock resistance up to 30 g and vibration resistance from 10 Hz to 1000 Hz
  • Complementary PNP digital outputs with light/dark switching
  • Reverse polarity, overcurrent, and short-circuit protected outputs
  • Operating temperature range from -40°C to +60°C
Professional Installation Requirements
  • Installation by qualified personnel is recommended to ensure proper electrical connections and sensor alignment.
Applications
  • Industrial automation for object detection
  • Safety and presence detection in manufacturing lines
  • Material handling and packaging systems
Standards & Compliance
  • Complies with AS/NZS 60950 – Safety of IT and Communication Equipment
Environmental Benefits
  • Long LED service life reduces waste and replacement frequency
  • Robust design minimizes environmental impact through durability
  • Energy-efficient LED light source lowers power consumption
Warranty Information

Standard manufacturer warranty applies; please refer to SICK for specific warranty terms.

Available Now

The SICK WLD4FP-228121A0ZZZ sensor is available for immediate purchase, ideal for industrial automation and safety applications.