Sick WLL180T-P434 Fiber Optic Sensor
Sick WLL180T-P434 Fiber Optic Sensor features rectangular housing, visible red LED light, PNP output, and M8 connector interface design. This Sick M8 Connector Fiber Optic Sensor uses an LED light source at 650 nm wavelength, supports light/dark switching, delivers up to 31.2 kHz switching frequency, and enables long-distance through-beam sensing for industrial automation. The WLL180T-P434 is categorized under Sick Fiber Optic Sensors for structured optical detection systems.

| Brand | Sick |
| Product Type | Fiber Optic Sensor |
| Model Number | WLL180T-P434 |
Sick WLL180T-P434 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 m ... 20 m (Through-beam system) 1) 2) |
| Sensing range | 0 mm ... 1,400 mm, Proximity system 3) 0 m ... 18 m, Through-beam system 1) 2) |
| Type of light | Visible red light |
| Light source | LED |
| Wave length | 650 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-P434 Sick M8 Connector Fiber Optic Sensor is a compact rectangular sensing device designed for precise object detection in industrial automation systems. This Sick Fiber Optic Sensor uses visible red LED light, PNP switching output, and supports extended sensing ranges in proximity and through-beam configurations. The WLL180T-P434 belongs to the WLL series and is applied where fast response and stable optical detection are required.
The WLL180T-P434 Sick M8 Connector Fiber Optic Sensor is commonly used in conveyors, packaging lines, automated assembly systems, and inspection stations. Its long sensing capability supports detection across extended distances, while the selectable response times allow adaptation to different process speeds. The PNP output enables direct integration with standard PLC inputs in high-speed automation environments.
The Sick WLL180T-P434 Fiber Optic Sensor provides controlled optical performance, defined electrical behavior, and stable output for continuous industrial operation. With 7-segment indication, standardized M8 connectivity, and durable ABS/PC housing, this Sick M8 Connector Fiber Optic Sensor is suitable for demanding automation applications. Its technical consistency and Sick brand reliability support dependable sensing across structured production systems.




