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Photoelectric Proximity Sensor WTB12-3N1231 | 20mm to 350mm Sensing Range | IP66, IP67, IP69K Rated | by SICK

BRAND: SICK
SKU: 1041419
$838.10 List price: $1,053.40
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The WTB12-3N1231 Photoelectric Proximity Sensor is designed for industrial automation, featuring a sensing range from 20 mm to 350 mm and a visible red LED light source at 640 nm. With a robust metal housing and IP66, IP67, and IP69K protection ratings, it ensures reliable performance in harsh environments, making it ideal for manufacturing process control and safety monitoring.

Product Name/Title: Photoelectric Proximity Sensor WTB12-3N1231 | 20mm to 350mm Sensing Range | IP66, IP67, IP69K Rated | by SICK

Brand: SICK

SKU: 1041419

Alternatively Known As: Photoelectric sensor, Proximity sensor with background suppression, SICK proximity sensor, Industrial photo sensor

Technical Specifications
  • Functional principle: Photoelectric proximity sensor with background suppression
  • Sensing range: 20 mm to 350 mm
  • Light source: LED, visible red light, wavelength 640 nm
  • Light spot size: Ø 6 mm at 200 mm distance
  • Adjustment: Potentiometer, 5 turns
  • Supply voltage: 10 V DC to 30 V DC
  • Current consumption: 45 mA
  • Output type: NPN, light/dark switching
  • Output current max: ≤ 100 mA
  • Response time: ≤ 330 µs
  • Switching frequency: 1,500 Hz
  • Protection class: III
  • Housing material: Metal with plastic PMMA front screen
  • Cable: 4-wire, 5 m length, PVC
  • Enclosure rating: IP66, IP67, IP69K
  • Operating temperature: -40 °C to +60 °C
  • Storage temperature: -40 °C to +75 °C
  • Dimensions (H x L x W): 49mm x 42mm x 16mm
  • Weight: 0.28 kg
Key Features
  • Photoelectric proximity sensor with background suppression
  • Sensing range from 20 mm to 350 mm
  • Visible red LED light source with 640 nm wavelength
  • Potentiometer adjustment with 5 turns
  • High switching frequency of 1,500 Hz
  • Robust metal housing with IP66, IP67, and IP69K protection ratings
  • Operating temperature range from -40 °C to +60 °C
  • Includes 2 clamps BEF-KH-W12 with screws
Professional Installation Requirements
  • Installation by a qualified electrician or trained technician is recommended to ensure proper wiring and sensor alignment.
Applications
  • Industrial automation for object detection
  • Manufacturing process control
  • Safety and monitoring in machinery
  • Material handling and packaging systems
Standards & Compliance
  • Complies with AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
  • Energy-efficient LED light source reduces power consumption
  • Long service life minimizes waste and replacement frequency
Warranty Information

Standard manufacturer warranty applies; please refer to SICK's official warranty policy.

Available Now

The SICK WTB12-3N1231 Photoelectric Proximity Sensor is available for immediate purchase, ideal for industrial automation and safety applications.