Sick WTB12-3P2441 Photoelectric Sensor
Sick WTB12-3P2441 is a background suppression photoelectric sensor with 100 mm sensing range, PNP output, visible red LED support. This Sick photoelectric sensor from the W12 series operates on 10–30 V DC, uses 660 nm red light with a 2 mm light spot, supports light/dark switching, delivers ≤330 µs response time at 1,500 Hz, and features IP66/IP67/IP69K protection with an M12 4-pin metal housing.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WTB12-3P2441 |
Sick WTB12-3P2441 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 30 mm ... 175 mm |
| Sensing range | 35 mm ... 100 mm |
| Polarisation filters | - |
| Light source | LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 2 mm (60 mm) |
| Wave length | 660 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 | 45 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 WTB12-3P2441 Sick 100 mm Background Suppression Sensor is a photoelectric proximity sensor designed for controlled object detection in industrial automation. It operates using background suppression with a 35–100 mm sensing range, a PNP digital output, and a visible red LED light source. The device runs on 10–30 V DC and belongs to the Sick W12 series, commonly deployed where accurate foreground detection is required.
In industrial applications, the WTB12-3P2441 Sick 100 mm Background Suppression Sensor is used on conveyors, packaging machines, automated assembly stations, and inspection systems. Background suppression allows reliable detection of target objects while ignoring reflective backgrounds. The defined switching frequency and fast response time support stable operation in fast-moving processes, while the compact rectangular housing enables easy integration into constrained automation layouts.
The WTB12-3P2441 from Sick provides consistent sensing behavior through defined optics, electrical stability, and mechanical protection. With PNP output compatibility, defined response characteristics, and wide operating temperature tolerance, it integrates into standard industrial control systems. As part of the W12 series, this Sick photoelectric sensor supports dependable long-term operation in industrial automation environments where detection accuracy and durability are required.
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