SICK – VL18‑3P3940 – V18 Series M18 Retro‑Reflective Photoelectric Sensor

The SICK VL18‑3P3940 (MPN 6013653) is a compact, industrial-grade retro-reflective photoelectric sensor from the V18 series. Featuring a cylindrical M18 plastic housing, 4-pin M12 connector, and PNP dark-switching output, it detects objects from 5 cm to 3 m (extendable to 3.7 m with reflector C110A), making it ideal for automation, material handling, and packaging tasks.

Key Features & Specifications:

• Model / MPN: VL18‑3P3940 / 6013653  

• Detection Principle: Retro-reflective, dual-lens with polarization filter  

• Sensing Range: 0.05 m – 3 m (typical); up to 3.7 m with C110A reflector  

• Light Source: Visible red LED, ~100,000 h lifespan  

• Output: PNP, dark switching, ≤ 100 mA  

• Switching Performance: ≤ 2 ms response time; switching frequency up to 250 Hz  

• Power Supply: 10–30 V DC, typical current consumption 30 mA  

• Housing: Cylindrical M18 × 1 thread, 75 mm long; plastic (PBT/PC); IP67 rated  

• Connection: Male M12 4-pin connector  

• Optics: 2.8° focus angle; ~150 mm light spot diameter at 3 m  

• Protections: Reverse-polarity, interference suppression, short-circuit/overcurrent protected  

• Environmental: Operating temperature –25 °C to +70 °C; weight ~100 g; UL file NMFT2.E175606