Overview
The Sick WT12-P4181 is a compact photoelectric proximity sensor designed for reliable object detection in industrial automation applications. Operating on 10-30VDC with a maximum output of 100mA, this unit features a male M12 4-pin connector for easy integration into existing control systems. Though discontinued by the manufacturer, the Sick WT12-P4181 remains a dependable solution for maintenance, repair, and replacement in legacy installations.
Key Features
- Supply voltage range: 10-30VDC with ≤5Vpp ripple tolerance
- Output current: 100mA maximum
- M12 4-pin male connector for standard industrial connectivity
- Light/dark switching modes for flexible detection logic
- Response time: ≤330 microseconds for real-time applications
- IP67 rated enclosure for protection in harsh environments
Technical Specifications
The Sick WT12-P4181 integrates photoelectric proximity sensing with foreground suppression technology, enabling consistent detection of objects at defined distances. Its metal and zinc diecast housing combined with plastic optics provides durability across industrial settings. Power consumption remains low at ≤30mA, making it suitable for battery-backed or distributed power architectures.
Typical Applications
- Part positioning and presence detection on assembly lines
- Object counting in packaging and logistics systems
- Material flow monitoring in manufacturing plants
- Replacement in legacy photoelectric detection circuits
- Quality assurance checkpoints requiring reliable sensing
Compatibility & Replacements
Compatible With
- Standard 10-30VDC PLC input modules
- Industrial automation controllers with digital inputs
- M12 A-coded connector systems
- Light/dark output logic controllers
Replaces / Drop-In Replacement For
The Sick WT12-P4181 is compatible with systems originally specified for this model. The manufacturer lists WTB12-3P2411 as the current replacement model for new installations.
Works With
- Rockwell Automation CompactLogix and ControlLogix inputs
- Siemens S7-1200, S7-1500 and LOGO! logic controllers
- Standard 24VDC distributed I/O modules
- M12 connector-based automation fieldbus networks
