Procurement teams shortlist WTT12L-B1541 with Sick Laser Sensor, Sick Gtb6 P4211 and P&F Photoelectric Sensor, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Sick WTT12L-B1541 Photoelectric Sensor
The Sick WTT12L-B1541 Photoelectric Sensor provides a one-hundred to one-thousand eight-hundred millimeter sensing range using visible red laser light. It features background suppression, a PNP/NPN push-pull output, and a ≤ 16.7 ms response time with a 30 Hz switching frequency. Operating on 10–30 V DC, it includes a 658 nm laser, potentiometer adjustment, and an IP67-rated VISTAL housing with a 2 m PVC cable. Explore Sick Sensors, view Sick Photoelectric Sensors, and learn about the Sick WTT Series.
| Brand | Sick |
| Product Type | Photoelectric Sensors |
| Model Number | WTT12L-B1541 |
Sick WTT12L-B1541 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric proximity sensor |
| Functional principle detail | Background suppression, Optical time-of-flight |
| Dimensions (W x H x D) | 20 mm x 49.6 mm x 44.2 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 50 mm ... 1,800 mm |
| Sensing range | 100 mm ... 1,800 mm 3) |
| Type of Light | Visible red light |
| Light source | Laser |
| Light spot size (distance) | Ø 12 mm (1,800 mm) |
| Wave length | 658 nm |
| Laser class | 1 (IEC 60825-1 / CDRH 21 CFR 1040.10 & 1040.1 |
| Adjustment | Potentiometer, 4 turns (1 x) |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | 70 mA 3) |
| Switching output | Push-pull: PNP/NPN |
| Switching mode | Light/dark switching |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 16.7 ms |
| Switching frequency | 30 Hz 6) |
| Connection type | PVC Cable, 5-wire, 2 m |
| Protection class | III |
| Housing material | Plastic, VISTAL® |
| Optics material | Plastic, PMMA |
| Enclosure rating | IP67 |
| Ambient operating temperature | –35 °C ... +50 °C 1 |
| Ambient temperature, storage | –40 °C ... +70 °C |
| Weight | 111 g |
The Sick WTT12L-B1541 Photoelectric Sensor is a compact rectangular device designed for precise object detection in industrial automation. The Sick WTT12L-B1541 offers a 100–1,800 mm sensing range, uses visible red laser light, and provides a PNP/NPN push-pull output with light/dark switching. As part of the Sick WTT series, it operates on 10–30 V DC and uses optical time-of-flight technology for stable performance in varied factory environments.
This sensor is suitable for conveyors, packaging machines, automated inspection, and assembly lines requiring consistent distance-based detection. Its laser-based background suppression and 30 Hz switching frequency enable reliable operation even when target surfaces vary. The rectangular VISTAL housing and PVC cable connection support secure mounting and easy integration into control systems handling repetitive motion or material flow.
The Sick WTT12L-B1541 Photoelectric Sensor combines long-range detection, stable optical performance, and robust design for demanding automation needs. With features such as an IP67 enclosure, 658 nm laser source, and a ≤ 16.7 ms response time, it ensures dependable operation across industrial applications. Sick’s proven sensing technology makes it a reliable choice for engineers seeking accurate and durable photoelectric sensing.
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