Sick WTB12C-3P2432A91 Photoelectric Sensor
The Sick WTB12C-3P2432A91 is a rectangular photoelectric proximity sensor with background suppression and 350 mm sensing range PNP output. This Sick photoelectric sensor operates on 10–30 V DC, uses visible red PinPoint LED at 640 nm, supports 1,500 Hz switching frequency, and belongs to the W12 series for industrial automation.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WTB12C-3P2432A91 |
Sick WTB12C-3P2432A91 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 | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 6 mm (200 mm) |
| Wave length | 640 nm |
| Adjustment | IO-Link, Single teach-in button |
| Angle of dispersion | - |
| Special applications | - |
| Items supplied | - |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 45 mA |
| Protection class | III |
| Digital Output type | PNP 4) |
| Switching mode | Light/dark switching |
| Signal voltage PNP HIGH/LOW | > Uv - 2,5 V / ca. 0 V |
| Output current Imax. | ≤ 100 mA |
| Response time | 100 µs 6) |
| Switching frequency | 1,500 Hz 7) |
| Output function | - |
| 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, zinc diecast |
| 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 WTB12C-3P2432A91 Sick 350mm Rectangular Photo Sensor is a Sick photoelectric sensor designed for controlled short-range detection in industrial automation systems. This model uses background suppression with a 20–350 mm sensing range, visible red LED at 640 nm, and PNP digital output. Operating on 10–30 V DC with defined response behavior, the WTB12C-3P2432A91 is part of the Sick W12 series widely deployed in automated equipment.
The WTB12C-3P2432A91 Sick 350mm Rectangular Photo Sensor is applied in conveyors, packaging machines, automated assembly lines, and material handling systems. Its 100 µs response time and 1,500 Hz switching frequency allow reliable detection of fast-moving objects while suppressing background surfaces. The rectangular housing and precise light spot support stable sensing where space-efficient installation and accuracy are required.
The WTB12C-3P2432A91 from Sick delivers consistent optical sensing performance for continuous industrial use. With background suppression technology, visible red light emission, and IP-rated enclosure protection, this Sick photoelectric sensor supports dependable operation in demanding environments. As a W12 series device, the WTB12C-3P2432A91 is suitable for applications requiring electrical stability, environmental resistance, and repeatable detection across industrial automation processes.
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