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Photoelectric Proximity Sensor WTB9L-3N1191 | Background Suppression | 25mm to 400mm Sensing Range | IP66/IP67/IP69K Rated | by SICK
The WTB9L-3N1191 photoelectric proximity sensor is designed for industrial automation, featuring a sensing range of 25 mm to 400 mm and a visible red laser light source at 650 nm. With robust IP66, IP67, and IP69K ratings, this sensor is perfect for detecting small objects in manufacturing and quality control applications, ensuring reliable performance in challenging environments.
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Technical Specifications
- Functional principle: Photoelectric proximity sensor with background suppression
- Sensing range: 25 mm to 400 mm
- Light source: Visible red laser, 650 nm wavelength
- Laser class: 2 (IEC 60825-1 / CDRH 21 CFR 1040.10 & 1040.11)
- Adjustment: Potentiometer, 5 turns
- Supply voltage: 10 V DC to 30 V DC
- Current consumption: 30 mA
- Switching output: NPN, complementary
- Switching mode: Light/dark switching
- Output current max: ≤ 100 mA
- Response time: ≤ 1 ms
- Switching frequency: 500 Hz
- Connection type: 4-wire cable, 2 m length, PVC material
- Protection class: III
- Enclosure rating: IP66, IP67, IP69K
- Operating temperature: -30 °C to +55 °C extended range
- Housing material: Plastic, VISTAL®
- Optics material: Plastic, PMMA
- Weight: 13 g
- Dimensions (H x L x W): 49.8mm x 23.6mm x 12.2mm
- Weight: 0.1 kg
Key Features
- Photoelectric proximity sensor with background suppression
- Visible red laser light source with 650 nm wavelength
- Sensing range from 25 mm to 400 mm
- Rectangular housing design with M3 mounting hole
- Potentiometer adjustment with 5 turns
- Light/dark switching mode with complementary NPN output
- High switching frequency of 500 Hz and response time ≤ 1 ms
- Robust plastic VISTAL® housing with IP66, IP67, and IP69K protection ratings
- Wide ambient operating temperature range from -30 °C to +55 °C
- Cable connection with 4-wire, 2 m PVC cable
- Laser class 2 compliant with IEC 60825-1 standards
Professional Installation Requirements
- Installation should be performed by a qualified technician or electrician to ensure proper wiring, alignment, and compliance with safety standards.
Applications
- Industrial automation for detecting small objects
- Manufacturing process control
- Material handling and packaging systems
- Quality control and inspection systems
Standards & Compliance
- Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation)
- Complies with AS/NZS 3820 – Essential Safety Requirements for Electrical Equipment
Environmental Benefits
- Energy-efficient sensor operation reduces power consumption in automated systems
- Durable housing materials extend product lifespan, reducing waste
- Compliance with China-RoHS and ECOLAB certificates ensures environmentally responsible manufacturing
Warranty Information
Warranty details available upon request from the manufacturer.
Available Now
The SICK WTB9L-3N1191 photoelectric proximity sensor is available for immediate purchase, ideal for industrial automation and object detection applications.
