Before procurement teams confirm PRK-55-6-42-S8, they typically review Sick Diffuse Sensor, Leuze Ls5B Xx 200 M12 and Leuze Proximity Sensor to double-check performance ratings, stock availability, and supplier credibility carefully.
Leuze PRK 55/6.42-S8 | 50112991
| Brand | Leuze |
| Product Type | Photoelectric Sensor |
| Product | PRK 55/6.42-S8 |
Leuze 55 serie, cuboid housing retro-reflective sensor PRK 55/6.42-S8 - 50112991 Technical Specifications:
| Specification | Value |
|---|---|
| Design | Cubic |
| Operating principle | Reflection principle |
| Application | Detection of highly transparent bottles |
| Special version | All stainless steel housing Autocollimation Teach input |
| Sensing Distance | 0 ... 3 m |
| Beam path | Divergent |
| Light source | LED, Red |
| Wavelength | 620 nm |
| Type of light spot geometry | Round |
| Supply voltage UB | 10 ... 30 V, DC |
| Switching Output 1 | Transistor, Push-pull |
| Switching principle | Light switching (PNP)/dark switching (NPN) |
| Switching Output 2 | - |
| Switching principle | - |
| Switching frequency | 1,000 Hz |
| Response time | 0.5 ms |
| Function | Signal IN Signal OUT Voltage supply |
| Type of connection | Connector |
| Thread size | M8 |
| Type | Male |
| Material | Stainless steel |
| No. of pins | 4 -pin |
| Encoding | - |
| Dimension (W x H x L) | 14 mm x 35.5 mm x 25 mm |
| Housing material | Stainless steel |
| Metal housing | AISI 316L |
| Lens cover material | Plastic with scratch-resistant Indium protective coating |
| Housing color | Silver |
| Type of display | LED |
| Operational controls | Teach button |
| Ambient temperature, operation | -30 ... 55 Β°C |
| Ambient temperature, storage | -30 ... 55 Β°C |
| Degree of protection | IP 67 / IP 69K |
Engineered with precision, the Leuze PRK 55/6.42-S8 Photoelectric Sensor is built around a cubic stainless steel housing (AISI 316L), offering robust mechanical durability and superior resistance to corrosion, washdowns, and chemical exposure. The sensor features a 620 nm red LED light source and operates on the reflection principle with a divergent beam path, allowing accurate detection even of transparent or low-contrast materials. Its sensing range spans from 0 to 3 meters, suitable for dynamic detection zones across conveyors and bottling lines.
Designed for flexibility, this photoelectric sensor supports both light switching (PNP) and dark switching (NPN) modes through a transistor push-pull output. The quick 0.5 ms response time and high 1,000 Hz switching frequency make it ideal for fast-paced automation systems. The compact dimensions (14 mm x 35.5 mm x 25 mm) enable easy integration into tight panels or machine enclosures, while the 4-pin M8 male connector ensures secure and tool-free connectivity. With an operating voltage range of 10β30 V DC and an IP67/IP69K protection rating, it performs reliably under harsh industrial conditions.
Additionally, the Leuze PRK 55/6.42-S8 features a user-friendly Teach button for quick configuration and a clear LED status display for visual feedback. Its scratch-resistant lens cover and hygienic design are optimized for long-term use in applications requiring stringent cleanliness standards. Trusted by automation engineers worldwide, this sensor combines cutting-edge optics, rugged materials, and German engineering excellence in one compact solution. View Leuze official site for more details.
The Leuze PRK 55/6.42-S8 Photoelectric Sensor is widely used in applications where detecting transparent bottles or containers is critical, such as in beverage bottling, pharma packaging, and food production lines. Traditional sensors often struggle to detect clear or glossy surfaces, but this model uses autocollimation optics that allow accurate and stable detection without false triggering.
For Indian maintenance engineers, this means fewer stoppages, easier calibration using the Teach input, and minimal maintenance even in wet or washdown areas. The IP69K-rated stainless steel body ensures resistance to water jets and chemicals, making it ideal for CIP (Clean-in-Place) environments. Whether mounted on a bottling line or inside a high-speed packaging machine, it delivers consistent detection without the need for regular readjustment.
For engineering students and junior technicians, the Leuze PRK 55/6.42-S8 Photoelectric Sensor is a great example of how light-based sensors work reliably even in the toughest industrial conditions. Its fast response and industrial-grade construction provide both performance and learning value. The photoelectric sensor offers a trusted solution to problems that other sensors canβt handle, and it remains a preferred choice for automated bottle detection applications across industries.

