Sick WLL180T-P474 Fiber Optic Sensor
Sick WLL180T-P474 Fiber Optic Sensor provides infrared LED detection with PNP output, selectable response times, and rectangular housing design; this Sick Fiber Optic Sensor supports up to 850 mm through-beam sensing and 400 mm proximity sensing, uses 1,450 nm infrared LED light, and operates with PNP switching output via an M8 connector.
| Brand | Sick |
| Product Type | Fiber Optic Sensor |
| Model Number | WLL180T-P474 |
Sick WLL180T-P474 Fiber Optic Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Device type | Fiber-optic sensors |
| Dimensions (W x H x D) | 10.5 mm x 34.6 mm x 71.9 mm |
| Housing design (light emission) | Rectangular |
| Sensing range max. | 0 mm ... 1,000 mm (Through-beam system) 1) 2) |
| Sensing range | 0 mm ... 400 mm, Proximity system 3) 0 mm ... 850 mm, Through-beam system 1) 2) |
| Type of light | Infrared light |
| Light source | LED |
| Wave length | 1,450 nm |
| Indication | 7-segment |
| Supply voltage | N/A |
| Current consumption | 50 mA 3) |
| Switching output | PNP |
| Switching mode | Light/dark switching |
| Response time | ≤ 16 µs, ≤ 70 µs, ≤ 250 µs, ≤ 2,000 µs, ≤ 8,000 µs |
| Switching frequency | 31.2 kHz, 7.1 kHz, 2 kHz, 250 Hz, 62.5 Hz |
| Connection type | Male connector M8, 4-pin |
| Housing material | Plastic, ABS/PC |
| Ambient operating temperature | –25 °C ... +55 °C |
| Ambient temperature, storage | –40 °C ... +70 °C |
| Weight | 20 g |
The Sick WLL180T-P474 Fiber Optic Sensor is an infrared optical sensing device designed for controlled object detection in industrial automation systems. This Sick Fiber Optic Sensor operates using 1,450 nm infrared LED light, provides PNP switching output, and supports selectable response times to match different detection speeds. The WLL180T-P474 Fiber Optic Sensor is used where stable optical performance is required.
In industrial automation environments, the Sick WLL180T-P474 Fiber Optic Sensor is applied in conveyors, packaging equipment, automated inspection points, and assembly processes. Its infrared sensing principle allows reliable detection across varying surface characteristics, while configurable response times support both slow and fast-moving objects. The compact rectangular housing and M8 connector simplify installation in space-restricted machine designs.
The Sick WLL180T-P474 Fiber Optic Sensor delivers predictable sensing behavior through defined sensing ranges, controlled switching frequencies, and stable infrared output. With durable ABS/PC housing, consistent electrical characteristics, and repeatable detection performance, the WLL180T-P474 model meets industrial automation requirements where dependable fiber optic sensing is essential for continuous operation.
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