The SICK WTB27-3P3411 is a compact industrial photoelectric proximity sensor from the W27-3 series engineered for accurate object detection in demanding automation environments. Utilizing infrared light with background suppression technology, the sensor delivers reliable detection performance across sensing ranges from 100 mm to 1,600 mm while minimizing false switching caused by background objects. The unit features a rugged rectangular housing with IP69K protection, making it suitable for harsh industrial conditions involving dust, moisture, vibration, oils, and washdown environments. Equipped with PNP complementary outputs, light/dark switching modes, and fast response time, the sensor integrates easily into PLC and industrial control systems. Its compact design and M12 connector interface make it ideal for conveyors, packaging machinery, material handling systems, and factory automation applications.
Specifications
| Specification | Value |
| Product Name | SICK WTB27-3P3411 |
| Brand | SICK |
| Main Category | Instrumentation |
| Sub-Category | Sensors |
| Product Type | Photoelectric Sensor |
| Sensor Type | Photoelectric Proximity Sensor |
| Functional Principle | Background Suppression |
| Model Series | W27-3 |
| Part Number | 1044438 |
| Sensing Range | 100 mm – 1,600 mm |
| Maximum Sensing Range | 30 mm – 1,600 mm |
| Light Source | Infrared LED |
| Wavelength | 880 nm |
| Output Type | PNP |
| Output Function | Complementary |
| Switching Mode | Light/Dark Switching |
| Supply Voltage | 10–30V DC |
| Current Consumption | 40 mA |
| Output Current | ≤100 mA |
| Response Time | ≤1.5 ms |
| Switching Frequency | 350 Hz |
| Connection Type | M12 4-Pin Connector |
| Cable Type | PVC Cable |
| Housing Material | ABS Plastic |
| Optics Material | PMMA |
| Protection Rating | IP69K |
| Operating Temperature | -40°C to +60°C |
| Mounting Style | Rectangular Compact Mount |
| Application | Industrial Automation & Object Detection |
