Sick WTB12-3P2411 Photoelectric Sensor
The Sick WTB12-3P2411 is a photoelectric proximity sensor with background suppression and a 600 mm sensing range capability application. This Sick photoelectric sensor operates on 10–30 V DC, uses infrared LED light at 850 nm, supports PNP output with 1,500 Hz switching frequency, and belongs to the W12 series for industrial automation.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WTB12-3P2411 |
Sick WTB12-3P2411 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 20 mm ... 600 mm |
| Sensing range | 20 mm ... 600 mm |
| Polarisation filters | - |
| Light source | LED |
| Type of light | Infrared light |
| Light spot size (distance) | 15 mm x 15 mm (200 mm) |
| Wave length | 850 nm |
| Adjustment | Potentiometer, 5 turns |
| Angle of dispersion | - |
| Special applications | - |
| Items supplied | 2 x clamps BEF-KH-W12, incl. screws |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 55 mA |
| Protection class | III |
| Digital Output type | PNP |
| Switching mode | Light/dark switching |
| Signal voltage PNP HIGH/LOW | > Uv - 2,5 V / ca. 0 V |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 330 µs 4) |
| Switching frequency | 1,500 Hz 5) |
| Output function | Complementary |
| Special feature | - |
| Housing | Rectangular |
| Dimensions (W x H x D) | 15.6 mm x 48.5 mm x 42 mm |
| Connection | Male connector M12, 4-pin |
| Housing material | Metal |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP66, IP67, IP69K |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | 120 g |
The WTB12-3P2411 Sick Photoelectric Proximity Switch is a Sick photoelectric sensor designed for controlled short-range detection in industrial automation. This model applies background suppression technology with a 20–600 mm sensing range, infrared LED at 850 nm, and PNP digital output. Operating on 10–30 V DC with defined response characteristics, the WTB12-3P2411 belongs to the Sick W12 series used across automated machinery.
The WTB12-3P2411 Sick Photoelectric Proximity Switch is commonly used in conveyors, packaging equipment, automated assembly lines, and material handling systems. Its 330 µs response time and 1,500 Hz switching frequency support reliable detection of fast-moving objects while suppressing background surfaces. The defined light spot and potentiometer adjustment allow stable sensing where precise proximity control is required.
The WTB12-3P2411 from Sick provides consistent optical detection for continuous industrial use. With background suppression functionality, infrared light emission, and IP-rated enclosure protection, this Sick photoelectric sensor supports dependable operation in demanding environments. As part of the W12 series, the WTB12-3P2411 is suitable for applications requiring electrical stability, environmental resistance, and repeatable detection across industrial automation processes.
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