Overview
The Sick WTR2-N551S06 ZoneControl photoelectric sensor is a diffuse-type proximity sensor designed for reliable object detection and positioning control in industrial automation environments. Part of Sick’s established ZoneControl product family, this sensor delivers the precision and dependability required for motion control, presence sensing, and process automation applications. The WTR2-N551S06 is engineered to detect object presence without physical contact, making it ideal for high-speed production lines, packaging machinery, and material handling systems.
Key Features
- Diffuse sensing technology for flexible object detection without reflective tape
- M12 connector interface for quick disconnect and integration
- Robust plastic ABS housing rated IP54 for dust and moisture resistance
- Wide operating temperature range suitable for diverse industrial environments
- Outputs protected against overcurrent and short-circuit conditions
- UL-listed with established compatibility across automation platforms
Technical Specifications
- Manufacturer: Sick
- Model: WTR2-N551S06
- Product Type: Diffuse Photoelectric Sensor
- Connection Type: M12 4-pin male connector
- Housing Material: Plastic ABS
- Enclosure Rating: IP54
- Operating Temperature: –40 °C to +60 °C
- Storage Temperature: –40 °C to +75 °C
- Switching Frequency: Up to 250 Hz
- Weight: 40 g
- Protection Class: II
- Certifications: UL File No. NRKH.E181493
Typical Applications
The Sick WTR2-N551S06 is used across a range of industrial automation systems:
- Packaging machinery and product presence detection
- Conveyor line position monitoring and control
- Assembly line object sensing and material flow
- Motion control trigger points in manufacturing processes
- Automated material handling and sorting systems
- Bottle and container detection in beverage and food processing
Compatibility & Replacements
Compatible With
- Standard 24 VDC industrial control systems
- Programmable logic controllers (PLCs) with discrete I/O modules
- Motion control systems requiring TTL/digital input signals
- Industrial automation networks supporting M12 sensor connectors
- Conveyor and packaging equipment control platforms
Replaces / Drop-In Replacement For
Verify specific model compatibility with your system integrator or equipment documentation before ordering, as diffuse sensor replacement requires confirmation of sensing distance and object type match.
Works With
- Standard PLC discrete input modules
- Motion control and servo drive systems
- Industrial relay logic and hardwired automation circuits
- M12 connector-based sensor networks
- 24 VDC power distribution systems common in industrial facilities
