If youโre not fully sure about WTB4S-3P3161, taking a closer look at Sick Laser Sensor, Sick Gtb6 P1211 and P&F Photoelectric Sensor often helps compare reliability, cost, and availability.
Sick WTB4S-3P3161 Photoelectric Sensor
The Sick WTB4S-3P3161 Photoelectric Sensor offers a Rectangular design, 650 nm sensing range, PinPoint LED light source, PNP output, and โ40 ยฐC ... +60 ยฐC connection. Manufactured by Sick under the Sick Photoelectric Sensor category, this model belongs to the WL Series.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WTB4S-3P3161 |
Sick WTB4S-3P3161 Photoelectric Sensor โ Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 4 mm ... 180 mm |
| Sensing range | 10 mm ... 180 mm |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | ร 6.5 mm (150 mm) |
| Wave length | 650 nm |
| Adjustment | Potentiometer, 5 turns |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 20 mA 3) |
| Protection class | III |
| Digital Output type | PNP |
| Switching mode | Light switching |
| Output current Imax. | โค 100 mA |
| Response time | < 0.5 ms |
| Switching frequency | 1,000 Hz |
| Housing | Rectangular |
| Design detail | Slim |
| Dimensions (W x H x D) | 12.2 mm x 41.8 mm x 17.3 mm |
| Connection | Cable with connector M8, 3-pin |
| Housing material | Plastic, ABS |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67, IP66 |
| Ambient operating temperature | โ40 ยฐC ... +60 ยฐC |
| Ambient temperature, storage | โ40 ยฐC ... +75 ยฐC |
| Weight | 30 g |
The Sick WTB4S-3P3161 Photoelectric Sensor operates using a photoelectric retro-reflective principle with advanced background suppression, enabling accurate detection of objects within a sensing range of 10 mm to 180 mm. Its PinPoint LED emits a focused visible red light with a wavelength of 650 nm, forming a clear ร 6.5 mm light spot at 150 mm. This precise light targeting helps eliminate false triggers and ensures consistent detection even in cluttered industrial areas. The sensor's 5-turn potentiometer allows for fine-tuning the detection threshold to suit specific machine or conveyor line setups.
Operating on a standard 10 V DC to 30 V DC supply with a low 20 mA current draw, the WTB4S-3P3161 is designed for efficient power use without sacrificing performance. With a fast response time of under 0.5 ms and a switching frequency of 1,000 Hz, it delivers dependable performance in high-speed automation tasks. Its PNP digital output and light switching mode make integration with industrial PLCs seamless. The sensorโs slim rectangular ABS housing measures just 12.2 mm ร 41.8 mm ร 17.3 mm and connects via a 3-pin M8 cable with connector, making installation both compact and secure.
Rated at IP66 and IP67, the WTB4S-3P3161 withstands harsh environments, including moisture, dust, and mechanical vibration, making it suitable for use in automotive, FMCG, and packaging industries. Its reliable operation across extreme temperatures from โ40 ยฐC to +60 ยฐC further strengthens its credibility for long-term use. Trusted for its performance, build quality, and cost-efficiency, the Sick WTB4S-3P3161 Photoelectric Sensor is a go-to choice for maintenance engineers and OEM integrators.
