Sick WTB12-3N2431 Photoelectric Sensor
The Sick WTB12-3N2431 photoelectric sensor provides 20–350 mm sensing range, NPN output, and 1,500 Hz switching frequency for industrial automation detection applications, while the Sick WTB12-3N2431, known as the Sick 45 mA Current Photoelectric Sensor, belongs to Sick photoelectric sensors and the W12 series, featuring background suppression, visible red LED light, 10–30 V DC supply, 330 µs response time, M12 4-pin connector, IP66/IP67/IP69K protection, and rectangular metal housing.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WTB12-3N2431 |
Sick WTB12-3N2431 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 | 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 | NPN |
| Switching mode | Light/dark switching |
| Signal voltage PNP HIGH/LOW | Approx. VS / < 2.5 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 Sick WTB12-3N2431 photoelectric sensor, also referred to as the Sick 45 mA Current Photoelectric Sensor, is designed for precise detection in industrial automation systems. It offers a 20–350 mm sensing range, NPN output, and 1,500 Hz switching frequency for stable operation. As part of the W12 series, the Sick WTB12-3N2431 uses background suppression to ensure consistent detection across varying surfaces.
The Sick WTB12-3N2431 photoelectric sensor is used in conveyors, packaging systems, assembly lines, and material handling applications. Its sensing capability ensures accurate detection within controlled distances. The sensor provides stable switching output, supporting reliable automation control. With its compact rectangular design and M12 connector, the Sick WTB12-3N2431 integrates easily into industrial environments.
The Sick WTB12-3N2431 photoelectric sensor combines controlled sensing range with durable industrial construction. With features such as fast response time, stable output, and IP69K protection, it supports continuous operation in demanding environments. As part of the Sick W12 series, it ensures compatibility with standard automation systems. The Sick WTB12-3N2431 is suitable for applications requiring consistent detection, reliable switching, and dependable performance.
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