Maintenance teams planning replacements for WL4S-3P2230 frequently review Sick Laser Sensor, Sick Gtb6 P1211 and P&F Photoelectric Sensor to prevent downtime, checking availability and compatibility with existing systems.
Sick WL4S-3P2230 Photoelectric Sensor
The Sick WL4S-3P2230 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 | WL4S-3P2230 |
Sick WL4S-3P2230 Photoelectric Sensor β Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Autocollimation |
| Sensing range max. | 0 m ... 4 m |
| Sensing range | 0 m ... 2.5 m |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Γ 45 mm (1.5 m) |
| Wave length | 650 nm |
| Adjustment | None |
| 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 WL4S-3P2230 Photoelectric Sensor by Sick uses a retro-reflective sensing principle with autocollimation, enabling precise detection even when background interference or alignment issues are present. It supports a sensing range of 0 to 2.5 meters (with a maximum of 4 meters) and emits a visible red light through a focused PinPoint LED beam, ensuring accurate detection of small and flat objects on moving belts. With a light spot diameter of 45 mm at 1.5 m and a wavelength of 650 nm, this sensor offers clear visual alignment without the need for mechanical adjustment.
It operates with light/dark switching using a PNP digital output, and supports rapid automation with a switching frequency of 1,000 Hz and a swift response time below 0.5 ms. Powered by a stable 10β30 V DC supply and consuming just 20 mA, the sensor is energy-efficient and reliable. The M8 4-pin male connector ensures easy integration, while its slim rectangular ABS housing and PMMA lens provide robust IP66/IP67 protection against dust and water. It withstands ambient operating temperatures from β40 Β°C to +60 Β°C, making it suitable for both indoor and outdoor installations in harsh Indian industrial environments.
The Sick WL4S-3P2230 is ideal for a wide range of automation tasks. On packaging lines, it reliably detects boxes, pouches, or labels, helping ensure smooth sorting and dispatch. In automotive assembly, it identifies the presence of metal brackets or clips during sub-assembly, reducing manual inspection needs. In logistics and warehousing, this sensor is used to track bins or pallets on conveyors, improving loading accuracy. Engineers appreciate its stability in dusty and humid areas, while students and trainees can understand its operation easily due to the visible light and consistent output logic. With no need for complex setup or calibration, the WL4S-3P2230 is trusted for applications that demand speed, reliability, and durability.

