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WTB4S-3N2131 | Photoelectric sensors

BRAND: SICK
SKU: 1042061
$533.90 List price: $671.00
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The SICK WTB4S-3N2131 is a slim photoelectric proximity sensor featuring background suppression, suitable for precise object detection in industrial automation with robust IP67/IP66 protection.

Product Name/Title: WTB4S-3N2131 | Photoelectric sensors

Brand: SICK

SKU: 1042061

Alternatively Known As: Photoelectric proximity sensor, Background suppression sensor, SICK photoelectric sensor, Industrial object sensor

Technical Specifications
  • Supply voltage: 10 V DC to 30 V DC
  • Current consumption: 20 mA
  • Output type: NPN, light switching
  • Maximum output current: ≤ 100 mA
  • Response time: < 0.5 ms
  • Switching frequency: 1000 Hz
  • Protection class: III
  • Circuit protection types: A, C, D
  • Operating temperature range: -40 °C to +60 °C
  • Storage temperature range: -40 °C to +75 °C
  • Enclosure rating: IP67, IP66
  • Light source: PinPoint LED, visible red light, 650 nm wavelength
  • Light spot size: Ø 2.5 mm at 50 mm distance
  • Adjustment: 5-turn potentiometer
  • Dimensions (H x L x W): 41.8mm x 17.3mm x 12.2mm
  • Weight: 0.1 kg
Key Features
  • Photoelectric proximity sensor with background suppression
  • Sensing range from 10 mm to 120 mm
  • PinPoint LED visible red light with 650 nm wavelength
  • Adjustment via 5-turn potentiometer
  • Fast response time under 0.5 ms and switching frequency up to 1000 Hz
  • Slim plastic ABS housing with IP67 and IP66 protection ratings
  • Connector M8, 3-pin connection
Professional Installation Requirements
  • Installation should be performed by qualified personnel familiar with electrical and sensor systems to ensure proper setup and safety compliance.
Applications
  • Industrial automation for object detection
  • Manufacturing process control
  • Packaging and material handling systems
  • Safety and presence detection in machinery
Standards & Compliance
  • AS/NZS 3000 – Wiring Rules (Electrical Installation)
Environmental Benefits
  • Low power consumption with 20 mA current draw
  • Durable housing reduces waste through extended product life
  • Complies with China RoHS for hazardous substance restrictions
Warranty Information

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

Available Now

The SICK WTB4S-3N2131 Photoelectric Sensor is available for immediate purchase, ideal for industrial automation and manufacturing applications.