Procurement teams shortlist WL4S-3E1330 with Sick Laser Sensor, Sick Gtb6 P1211 and P&F Photoelectric Sensor, aligning budget approvals, warranty terms, and multisite availability for smoother rollout across plants.
Sick WL4S-3E1330 Photoelectric Sensor
The Sick WL4S-3E1330 Photoelectric Sensor offers a Rectangular design, 650 nm sensing range, PinPoint LED light source, NPN output, and –40 °C ... +60 °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-3E1330 |
Sick WL4S-3E1330 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Autocollimation |
| Sensing range max. | 0 m ... 4.5 m |
| Sensing range | 0 m ... 2.5 m |
| Light source | PinPoint LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 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 | NPN |
| Switching mode | Dark switching |
| Output current Imax. | ≤ 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 | Cable, 4-wire, 2 m |
| Housing material | Plastic, ABS |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP67, IP66 |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | 30 g |
The WL4S-3E1330 Photoelectric Sensor from Sick features a reliable retro-reflective sensing principle enhanced with autocollimation, enabling precise detection of objects even when alignment is not perfect. With a sensing range of 0 to 2.5 meters and a maximum of 4.5 meters, it provides flexibility for mid-range applications. The sensor uses a PinPoint LED light source emitting a visible red beam at 650 nm, which produces a sharp Ø 45 mm light spot at 1.5 meters for easy alignment. Its fast response time under 0.5 ms and high switching frequency of 1,000 Hz make it ideal for detecting fast-moving parts or packages on conveyors.
The device operates on a standard 10–30 V DC power supply, drawing just 20 mA of current. It provides an NPN digital output and functions in dark switching mode, making it compatible with a wide range of control systems. Housed in a slim rectangular ABS enclosure with a PMMA front screen, it ensures reliable protection with IP66 and IP67 ratings. The sensor’s compact dimensions—just 12.2 mm wide—allow installation in tight areas, and its 2-meter 4-wire cable connection supports straightforward integration into existing automation setups. Its wide ambient operating temperature range of –40 °C to +60 °C ensures consistent performance in both indoor and outdoor industrial environments.
The Sick WL4S-3E1330 is well-suited for diverse applications such as carton detection in packaging lines, object presence verification in assembly units, and bin sensing in warehouse automation. Its stable response and low maintenance make it a preferred choice for engineers who value plug-and-play performance with long-term reliability. Junior maintenance staff can benefit from the no-adjustment design, while senior engineers appreciate its accurate, repeatable output in high-speed operations. Students studying automation get to witness real-world sensing technology in action, learning how sensors like this enhance safety and efficiency on production floors. For factories prioritizing reliability, cost-efficiency, and global brand trust, this Photoelectric Sensor from Sick delivers measurable value.
