SICK WL11G-2B2531P04 Photoelectric Retro-Reflective Sensor (1047437)

The SICK WL11G-2B2531P04 is a high-performance photoelectric retro-reflective sensor specifically designed for the reliable detection of transparent and non-transparent objects. Featuring visible red light technology, autocollimation optics, and rugged IP69K housing, it is ideal for demanding industrial environments including packaging, beverage, and logistics industries.

Technical Specifications

Model: WL11G-2B2531P04 SICK

Part No.: 1047437

Product Type: Photoelectric Retro-Reflective Sensor

Functional Principle: Retro-reflective detection with autocollimation (coaxial optics)

Sensing Range: 0 m to 4 m

Maximum Sensing Range: 0 m to 4 m

Light Source: LED, visible red light

Wavelength: 640 nm

Focus: Approx. 1.5°

Light Spot Size (at 1.5 m): Ø 25 mm

Angle of Dispersion: Approx. 1.5°

Adjustment: 11-turn potentiometer

Special Feature: Detection of transparent objects

Electrical Interface

Supply Voltage (UB): 10 V DC to 30 V DC

Ripple: < 5 Vpp

Current Consumption: 30 mA

Switching Output: PNP and NPN selectable

Switching Mode: Light/dark switching selectable via control cable

Signal Voltage PNP HIGH/LOW: UV – 3 V / approx. 0 V

Signal Voltage NPN HIGH/LOW: Approx. UV / < 3 V

Output Current (Imax): ≤ 100 mA

Response Time: ≤ 330 µs

Switching Frequency: 1,500 Hz

Connection Type: M12 male connector, 5-pin

Circuit Protection:

• A: Reverse polarity protection
• C: Short-circuit protection
• D: Overvoltage protection

Protection Class: III

Mechanical Data

Enclosure Rating: IP66, IP67, IP69K

Housing Design: Rectangular with coaxial light emission

Housing Material: Plastic (ABS)

Optics Material: Plastic (PMMA)

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

Weight: Approx. 120 g

Polarisation Filter: Integrated

Items Supplied: Reflector P250F (Part No.: 5308843)

Safety-Related Data

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

Special Certification:

• European Conformity (CE)
• ECOLAB Certified for use in cleaning-intensive environments
• SICK SIRIC Technology inside

Ambient Conditions

Operating Temperature: –30 °C to +60 °C

Storage Temperature: –40 °C to +75 °C

Ambient Humidity: 90% non-condensing

Applications

Ideal For:

• Transparent object detection (bottles, films, glass)
• Packaging and bottling lines
• Automated warehousing and conveyor logistics
• Food and beverage industry installations
• Detection in harsh environments requiring IP69K-rated equipment

Key Features & Benefits

✅ Transparent Object Detection: Specialized optics ensure reliable detection of clear items like glass or plastic.

✅ Dual Output Configuration: Easily switch between PNP and NPN outputs.

✅ High-Speed Performance: 1,500 Hz switching frequency supports fast-moving production lines.

✅ Superior Protection: IP66, IP67, and IP69K for use in washdown and harsh industrial environments.

✅ Flexible Installation: Compact housing and 5-pin M12 connector for straightforward integration.

Order Today for Fast UK & Europe Delivery!

At Drive Outlet Megastore, we offer unbeatable SICK WL11G-2B2531P04 prices with fast dispatch across the UK and Europe.

Need assistance selecting the right sensor for transparent object detection? Contact our expert team today!

Detect reliably — automate faster — with SICK and Drive Outlet Megastore.