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Photoelectric Proximity Sensor WTB9L-3N3491 | Background Suppression | 25mm to 400mm Sensing Range | IP66/IP67/IP69K Rated | by SICK
The WTB9L-3N3491 Photoelectric Proximity Sensor is designed for precise object detection in industrial automation, featuring a sensing range of 25 mm to 400 mm and a visible red laser light source. With a robust IP66/IP67/IP69K enclosure rating, it operates efficiently in harsh environments, making it ideal for manufacturing process control and quality inspection systems.
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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
- Adjustment: Potentiometer, 5 turns
- Supply voltage: 10 V DC to 30 V DC
- Current consumption: 30 mA
- Switching output: NPN complementary, max 100 mA
- Switching mode: Light/dark switching
- Response time: ≤ 1 ms
- Switching frequency: 500 Hz
- Connection: Cable with M12 male connector, 4-pin, 120 mm
- 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: 80 g
- Dimensions (H x L x W): 50mm 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
- High switching frequency of 500 Hz and response time ≤ 1 ms
- Complementary NPN switching output with light/dark switching mode
- Robust plastic housing (VISTAL®) and optics (PMMA)
- Enclosure rating IP66, IP67, and IP69K for harsh environments
- Wide ambient operating temperature range from -30 °C to +55 °C
Professional Installation Requirements
- Installation should be performed by qualified personnel familiar with photoelectric sensor wiring and safety standards to ensure proper operation and compliance.
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 3820 – Essential Safety Requirements for Electrical Equipment
Environmental Benefits
- Energy-efficient operation with low current consumption of 30 mA
- Durable design reduces waste and replacement frequency
- Complies with China-RoHS for hazardous substance restrictions
Warranty Information
Standard manufacturer warranty applies. Please refer to SICK's official warranty policy for details.
Available Now
The SICK WTB9L-3N3491 Photoelectric Proximity Sensor is available for immediate purchase, ideal for industrial automation and object detection applications.
