SICK WTB4FP-31311120ZZZ W4F Miniature Photoelectric Proximity Sensor

SICK WTB4FP‑31311120ZZZ is a miniature photoelectric proximity sensor with background suppression for precise object detection independent of background colour. Push‑pull output (PNP/NPN) and visible red PinPoint LED (635 nm) ensure easy alignment. Extremely compact VISTAL® plastic body (16 × 40.1 × 12.1 mm) houses an advanced BluePilot teach‑turn adjustment system with blue alignment assistance. The sensing range is adjustable from 15 mm to 220 mm. The sensor is rated IP66/IP67 and operates from –40 °C to +60 °C, making it suitable for packaging machinery, material handling, electronics assembly and general factory automation.

Applications:

• Small parts detection for pick‑and‑place stations in assembly automation

• Packaging machinery for transparent film, blister and bottle monitoring

• Material handling and electronics manufacturing positioning tasks

• Glossy, uneven, perforated, flat or transparent object detection in industrial processes

Technical Specifications:

• Functional principle: Photoelectric proximity sensor, background suppression

• Sensing range min./max.: 4 mm / 220 mm

• Adjustment range: 15 mm … 220 mm

• Light source: PinPoint LED, visible red light (λ = 635 nm)

• Light spot size: Ø 4.2 mm at 130 mm

• Minimum detectable object: 0.2 mm (at 130 mm, 90 % remission)

• Supply voltage: 10 V DC … 30 V DC

• No‑load current consumption: ≤ 25 mA

• Output type: Push‑pull (PNP/NPN)

• Switching mode: Light switching (object present → output HIGH)

• Output current: ≤ 100 mA

• Response time: ≤ 500 µs

• Switching frequency: 1,000 Hz

Mechanical & Environmental:

• Adjustment: Teach‑turn (BluePilot)

• Connection type: Cable with M8 male connector, 3‑pin, 110 mm

• Housing material: VISTAL® plastic

• Front screen material: PMMA

• Dimensions (W × H × D): 16 mm × 40.1 mm × 12.1 mm

• Enclosure rating: IP66 / IP67

• Ambient operating temperature: –40 °C … +60 °C

• Storage temperature: –40 °C … +75 °C

Advanced Specifications:

• BluePilot: Blue LED indicates sensing range setting; green LED: power; yellow LED: object detection

• Protection circuits: Reverse polarity, overcurrent, short‑circuit

• Ambient light immunity: 50,000 lx (artificial and sunlight)

• Shock resistance: 30 g / 11 ms (IEC 60068‑2‑27)

• Vibration resistance: 10 Hz … 1,000 Hz (IEC 60068‑2‑6)

• EMC compliance: EN 60947‑5‑2

• Ecolab certified (cleaning agent resistant)

• UL File No.: NRKH.E181493 & NRKH7.E181493

System Integration:

• This sensor belongs to the SICK W4F series of miniature photoelectric sensors.

• Background suppression detects only objects within the set sensing range.

• The push‑pull output configures as PNP or NPN based on the PLC input wiring.

• The 110 mm pigtail cable terminates in an M8 3‑pin male connector for standard industrial interface.

Safety Data (per EN ISO 13849):

• MTTF D: 642 years

• DCavg: 0 %

• TM (mission time): 20 years

• Probability of use: 60 %

Standards & Compliance:
Refer to manufacturer official documentation for certification and compliance details.

Related Products:

• BEF‑W4A – Mounting bracket for flexible sensor positioning

• YF8U14‑050VB3XLEAX – M8 straight female connector cable, 4‑pin, 5 m, PVC

• WTB4FP‑21311120ZZZ – W4F sensor with 2 m fixed cable (no M8 connector)