Sick WTB12L-1H161120A00 Photoelectric Sensor
Sick WTB12L-1H161120A00 is a photoelectric proximity sensor with 850 mm sensing range using laser background suppression for automation. This Sick photoelectric sensor from the W12 series uses visible red laser light at 655 nm, supports push-pull PNP/NPN output, operates on 10–30 V DC, delivers ≤500 µs response time, 1,000 Hz switching frequency, and IP66/IP67/IP69 enclosure protection.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WTB12L-1H161120A00 |
Sick WTB12L-1H161120A00 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 850 mm |
| Sensing range | - |
| Polarisation filters | - |
| Light source | Laser |
| Type of light | Visible red light |
| Light spot size (distance) | 2.2 mm x 1.2 mm (300 mm) |
| Wave length | 655 nm |
| Adjustment | Teach-Turn adjustment, IO-Link |
| Angle of dispersion | - |
| Special applications | Detecting small objects, Detection of objects moving at high speeds, Detecting perforated objects |
| Items supplied | - |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | ≤ 5 V |
| Current consumption | ≤ 14 mA, without load. At UB = 24 V |
| Protection class | III |
| Digital Output type | Push-pull: PNP/NPN |
| Switching mode | - |
| Signal voltage PNP HIGH/LOW | Approx. UB-2.5 V / 0 V |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 500 µs |
| Switching frequency | 1,000 Hz |
| Output function | - |
| Special feature | - |
| Housing | Rectangular |
| Dimensions (W x H x D) | 15.6 mm x 49.5 mm x 43.1 mm |
| Connection | Cable, 4-wire, 2 m |
| Housing material | Metal, zinc diecast |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP66 (EN 60529), IP67 (EN 60529), IP69 (EN 60529) |
| Ambient operating temperature | –20 °C ... +55 °C |
| Ambient temperature, storage | –40 °C ... +70 °C |
| Weight | Approx. 132 g |
The WTB12L-1H161120A00 Sick 850 mm Photoelectric Sensor is a laser-based photoelectric proximity sensor designed for precise object detection. This model provides 850 mm sensing distance, laser background suppression, push-pull PNP/NPN output, and IO-Link with Teach-Turn adjustment. As part of the Sick W12 series, it is engineered for stable detection of small, fast-moving, and perforated objects in industrial automation environments.
In conveyor systems, packaging machinery, automated assembly lines, and high-speed sorting applications, the WTB12L-1H161120A00 Sick 850 mm Photoelectric Sensor ensures accurate target recognition. Laser-based optics enable reliable detection of small components, while background suppression minimizes false triggering from reflective surfaces. Its fast switching frequency supports high-speed processes requiring consistent and repeatable sensing performance.
The WTB12L-1H161120A00 from Sick combines defined optical precision with durable mechanical construction. A zinc diecast metal housing, wide operating temperature range, and high ingress protection ratings support continuous industrial operation. Belonging to the W12 series, this Sick photoelectric sensor is suitable for automation systems that demand compact design, electrical flexibility, and dependable laser-based proximity sensing.
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