Sick WLL160‑F420 Fiber Optic Amplifier

Sick WLL160‑F420 Fiber Optic Amplifier

The Sick WLL160‑F420 is a fiber optic amplifier designed for use with Sick LL‑series fibers. It provides fast, precise and reliable object detection in industrial environments thanks to its high sensitivity and high switching frequency. Its compact housing, simple adjustment and DIN‑rail mounting make it suitable for automation systems requiring stable detection through fiber optics.

Main Features

• Brand: Sick
• Model: WLL160‑F420
• Type: Fiber optic amplifier
• Detection principle: Use of fiber optics (emitter/receiver)
• Fiber compatibility: LL series (SICK plastic fibers)
• Maximum sensing range:
  • Up to 4 m in through‑beam mode (with suitable fibers)
  • Up to 1 m in diffuse reflective mode
• Switching frequency: 2 kHz
• Response time: 0.25 ms
• Operating modes: Light ON / Dark ON
• Sensitivity adjustment: Potentiometer
• Power supply: 10…30 V DC
• Output: PNP transistor
• Maximum load: 100 mA
• Reverse polarity protection: Yes
• Short‑circuit protection: Yes
• Connection: Integrated 2 m cable
• Mounting: DIN rail
• Dimensions: 15 × 49 × 31 mm
• Operating temperature: –25 to +55 °C
• Protection rating: IP66

Condition

• Good visual condition with light signs of use
• Fully functional
• Suitable for immediate commissioning
• Tested and operational

Applications

• Object detection on conveyors
• Component positioning
• Detection in compact machinery
• Industrial automation
• Sorting and inspection systems
• Applications requiring precise and reliable fiber‑optic detection