Sick WTB12-3P2433 Photoelectric Sensor
The Sick WTB12-3P2433 is a background suppression photoelectric sensor with 350 mm sensing range, PNP output, and light switching. This Sick photoelectric sensor operates on 10–30 V DC, uses visible red LED light, supports 1,500 Hz switching frequency, and belongs to the W12 series for industrial automation.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WTB12-3P2433 |
Sick WTB12-3P2433 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 20 mm ... 350 mm |
| Sensing range | 20 mm ... 350 mm |
| Polarisation filters | - |
| Light source | LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 6 mm (200 mm) |
| Wave length | 640 nm |
| Adjustment | Double teach-in button |
| 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 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 |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | 120 g |
The WTB12-3P2433 Sick 350mm Background Suppression Sensor is a Sick photoelectric sensor designed for controlled proximity detection in industrial automation. This model operates with background suppression technology and supports a 20–350 mm sensing range, visible red LED at 640 nm, and PNP digital output. Operating on 10–30 V DC, the WTB12-3P2433 belongs to the Sick W12 series widely used in automated machinery.
The WTB12-3P2433 Sick 350mm Background Suppression Sensor is used in conveyors, packaging systems, automated assembly lines, and material handling applications. Its 330 µs response time and 1,500 Hz switching frequency enable reliable detection of objects while ignoring background surfaces. The defined light spot size and teach-in adjustment support stable operation where precise short-range sensing is required.
The WTB12-3P2433 from Sick delivers consistent sensing performance for continuous industrial use. With background suppression functionality, visible red light emission, and IP-rated enclosure protection, this Sick photoelectric sensor supports dependable operation in automation environments. As part of the W12 series, the WTB12-3P2433 is suitable for installations requiring repeatable detection, electrical stability, and mechanical durability across production processes.
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