Sick WLL180T-P474 Fiber Optic Sensor
Sick WLL180T-P474 Fiber Optic Sensor features rectangular housing, infrared LED light, 1450 nm wavelength, and PNP output switching capability. This Sick 400 mm Range Fiber Optic Sensor supports light/dark switching, delivers a 0–400 mm proximity sensing range, and operates with 50 mA current consumption in industrial automation. The WLL180T-P474 is listed under Sick Fiber Optic Sensors for structured infrared optical detection systems.
| 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 WLL180T-P474 Sick 400 mm Range Fiber Optic Sensor is a compact rectangular sensing device designed for controlled infrared object detection in industrial automation systems. This Sick Fiber Optic Sensor operates using infrared LED light at 1450 nm wavelength, PNP switching output, and a 7-segment display for precise operational feedback. The WLL180T-P474 supports defined proximity and through-beam sensing ranges with selectable response times and switching frequencies.
The WLL180T-P474 Sick 400 mm Range Fiber Optic Sensor is commonly used in conveyors, packaging equipment, automated assembly lines, and inspection stations. Its infrared sensing capability supports stable short-range proximity detection and extended through-beam monitoring. The PNP output allows direct PLC integration, while multiple switching frequency options help match sensor performance with machine cycle speeds.
The Sick WLL180T-P474 Fiber Optic Sensor delivers consistent infrared detection, stable electrical behavior, and durable ABS/PC housing for continuous industrial operation. With defined sensing ranges, controlled current consumption, and clear 7-segment indication, this Sick 400 mm Range Fiber Optic Sensor is suitable for structured industrial sensing applications. Its technical consistency and Sick brand reliability support dependable performance across production environments.
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