Overview
The Sick WTR2-N551S06 is a ZoneControl diffuse photoelectric sensor engineered for industrial automation and motion control applications. With infrared LED light detection and a 10-30V DC operating range, this sensor delivers reliable, maintenance-free detection suitable for a wide range of manufacturing and logistics environments. Its compact design and rugged construction make it ideal for under-roller, background-suppression, and general-purpose positioning tasks.
Key Features
- ZoneControl background-suppression technology for stable detection regardless of background reflectance
- Infrared LED light source with long service life
- Wide supply voltage range (10-30V DC) for flexible integration
- M12 4-pin connector for quick and reliable connection
- IP54 enclosure rating for protection against dust and moisture
- Adjustable sensitivity via potentiometer for precise tuning
- Operating temperature range of –40°C to +60°C for harsh industrial environments
- Fast switching frequency for high-speed applications
Technical Specifications
- Supply Voltage: 10-30V DC (ripple < 5 Vpp)
- Output Current: ≤100 mA maximum
- Light Source: Infrared LED
- Switching Frequency: 250 Hz
- Connection Type: M12 male connector, 4-pin
- Housing Material: Plastic ABS
- Enclosure Rating: IP54
- Weight: Approximately 40 g
- Operating Temperature: –40°C to +60°C
- Storage Temperature: –40°C to +75°C
- Ambient Conditions: Compliant with IEC 68 shock and vibration resistance standards
- Certifications: UL Listed (File No. NRKH)
Typical Applications
- Under-roller detection on conveyor systems
- Packaging machinery and carton detection
- Material handling and sorting applications
- Position sensing in automated assembly lines
- Bottle and container detection
- General-purpose motion control and positioning
Compatibility & Replacements
Compatible With
- SICK ZoneControl sensor ecosystem and distributed I/O networks
- Industrial PLC and motion control systems supporting 10-30V DC analog inputs
- Standard industrial automation controllers and safety systems
- M12 connector-based industrial sensor networks
Replaces / Drop-In Replacement For
- Verify compatibility with your controls integrator or system documentation for specific replacement models
Works With
- SICK sensor configuration and diagnostic software
- M12 standard industrial communication protocols
- Allen-Bradley, Siemens, Mitsubishi, and other major PLC platforms via analog I/O modules
- Industrial networks supporting discrete sensor inputs
