Sick WTB16I-24161121A00 Photoelectric Sensor
The Sick WTB16I-24161121A00 photoelectric sensor provides background suppression with 10–1500 mm sensing range using 850 nm infrared light technology. This Sick Photoelectric Sensor from the W26 and W16 series features infrared LED light at 850 nm, push-pull PNP/NPN outputs, ≤ 500 µs response time, and operates with IP66/IP67/IP69 enclosure protection.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WTB16I-24161121A00 |
Sick WTB16I-24161121A00 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range min. | 10 mm |
| Sensing range max. | 1,500 mm |
| Light source | LED |
| Type of light | Infrared light |
| Shape of light spot | Point-shaped |
| Light spot size (distance) | Ø 12 mm (800 mm) |
| Wave length | 850 nm |
| Adjustment | Teach-Turn adjustment, Teach-in button, IO-Link |
| Indication | LED blue 1, LED blue 2, LED green, LED yellow |
| Supply voltage UB | 10 V DC ... 30 V DC 1) |
| Ripple | ≤ 5 Vpp |
| Usage category | DC-12 (According to EN 60947-5-2), DC-13 (According to EN 60947-5-2) |
| Current consumption, sender & Receiver | ≤ 30 mA, without load. At UB = 24 V |
| Protection class | III |
| Digital output Number | 2 (Complementary) |
| Output type | Push-pull: PNP/NPN |
| Signal voltage PNP HIGH/LOW | Approx. UB-2.5 V / 0 V |
| Signal voltage NPN HIGH/LOW | Approx. UB / < 2.5 V |
| Output current Imax. | ≤ 100 mA |
| Circuit protection outputs | Reverse polarity protected, Overcurrent and short-circuit protected |
| Response time | ≤ 500 µs 2) |
| Repeatability (response time) | 150 µs |
| Switching frequency | 1,000 Hz 3) |
| Housing | Rectangular |
| Dimensions (W x H x D) | 20 mm x 55.7 mm x 42 mm |
| Connection | Male connector M12, 4-pin |
| Housing material | Plastic, VISTAL® |
| Front screen material | Plastic, PMMA |
| Male connector material | Plastic, VISTAL® |
| Maximum tightening torque of the fixing screws | 1.3 Nm |
| Enclosure rating | IP66 (EN 60529), IP67 (EN 60529), IP69 (EN 60529) 1) |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | Approx. 50 g |
The WTB16I-24161121A00 Sick 1500mm Background Suppression Sensor is a photoelectric proximity sensor designed for precise object detection in industrial automation. The WTB16I-24161121A00 Sick 1500mm Background Suppression Sensor supports a 10–1500 mm sensing range, uses 850 nm infrared light, and provides PNP/NPN complementary outputs with ≤ 500 µs response time. It belongs to the W26 and W16 series and is commonly applied in automated systems.
In industrial environments, the WTB16I-24161121A00 Sick 1500mm Background Suppression Sensor is used on conveyors, packaging machines, assembly lines, and material handling equipment. Background suppression helps reduce false detections caused by reflective surfaces or distant objects. Stable switching frequency supports reliable signal processing in high-speed automation tasks.
The WTB16I-24161121A00 Sick 1500mm Background Suppression Sensor is built with a compact rectangular housing and IP66/IP67/IP69 protection for harsh operating conditions. Integrated circuit protection ensures electrical stability during continuous operation. The WTB16I-24161121A00 reflects Sick manufacturing standards and is suitable for long-term photoelectric sensing in industrial automation applications.

