Procurement managers rarely finalize WTB4S-3P2231 without reviewing Sick Laser Sensor, Sick Gtb6 P1211 and P&F Photoelectric Sensor, ensuring that the chosen component meets budget, compliance, and delivery conditions.
Sick WTB4S-3P2231 Photoelectric Sensor
The Sick WTB4S-3P2231 Photoelectric Sensor offers a Rectangular design, 650 nm sensing range, PinPoint LED light source, PNP output, and β40 Β°C ... +60 Β°C connection. Manufactured by Sick under the Sick Photoelectric Sensor category, this model belongs to the WL Series.
| Brand | Sick |
| Product Type | Photoelectric Sensor |
| Model Number | WTB4S-3P2231 |
Sick WTB4S-3P2231 Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Background suppression |
| Sensing range max. | 4 mm ... 120 mm |
| Sensing range | 10 mm ... 120 mm |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Γ 2.5 mm (50 mm) |
| Wave length | 650 nm |
| Adjustment | Potentiometer, 5 turns |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 20 mA 3) |
| Protection class | III |
| Digital Output type | PNP |
| Switching mode | Light/dark switching |
| Output current Imax. | β€ 100 mA |
| Response time | < 0.5 ms |
| Switching frequency | 1,000 Hz |
| Housing | Rectangular |
| Design detail | Slim |
| Dimensions (W x H x D) | 12.2 mm x 41.8 mm x 17.3 mm |
| Connection | Male connector M8, 4-pin |
| Housing material | Plastic, ABS |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67, IP66 |
| Ambient operating temperature | β40 Β°C ... +60 Β°C |
| Ambient temperature, storage | β40 Β°C ... +75 Β°C |
| Weight | 30 g |
The WTB4S-3P2231 is a Reflective Photoelectric Sensor manufactured by Sick, a globally trusted name in industrial automation and sensing technology. Designed with precision German engineering, this Sick Photoelectric Sensor offers reliable object detection in demanding production environments. With compact dimensions and advanced background suppression, the WTB4S-3P2231 provides accurate performance for machine builders, OEMs, and maintenance engineers looking for consistency and durability in sensing operations.
The Sick WTB4S-3P2231 operates on a 10 V DC to 30 V DC power supply and uses a visible red PinPoint LED (650 nm) as its light source for precise alignment and consistent detection. Featuring background suppression technology, it achieves a stable sensing range from 10 mm to 120 mm, unaffected by the color or texture of the target object. The device supports PNP output with light/dark switching and a fast response time below 0.5 ms, ensuring high-speed detection in automated systems. Its switching frequency of 1,000 Hz allows accurate detection of fast-moving parts, while the potentiometer-based 5-turn adjustment offers fine sensitivity control. Built in a rectangular ABS housing with IP66 and IP67 protection ratings, the WTB4S-3P2231 Photoelectric Sensor ensures long-term reliability in harsh industrial environments, resisting vibration, dust, and temperature extremes from β40 Β°C to +60 Β°C. With its compact size of 12.2 Γ 41.8 Γ 17.3 mm and M8 4-pin connector, installation is quick and maintenance is minimalβmaking it a preferred sensor for space-limited control panels and production setups.
The Sick WTB4S-3P2231 Reflective Photoelectric Sensor is widely used in assembly automation, packaging machines, conveyor monitoring, and part detection systems. It delivers accurate object detection without false triggers from reflective backgrounds, making it ideal for detecting transparent or glossy materials such as plastic bottles, metal cans, and glass containers. In automotive and electronics industries, engineers use this sensor to ensure consistent component presence verification, while in food processing, it supports hygienic, contact-free detection. The WTB4S-3P2231 helps reduce production errors and downtime, providing confidence to maintenance teams and designers who require dependable, repeatable sensing results.
Professionals looking for detailed documentation can refer to the WTB4S-3P2231 datasheet and WTB4S-3P2231 manual for wiring, alignment, and parameter configuration. When comparing WTB4S-3P2231 price options, buyers often find it delivers exceptional value given its precision, compact build, and long operational life. The Sick WTB4S-3P2231 Reflective Photoelectric Sensor remains a benchmark in industrial sensing, combining quality, ease of setup, and consistent performance that meets the standards of modern automated manufacturing.

