Product Overview

The SICK WTB2S-2P3160 is a miniature, background-suppressing photoelectric proximity sensor from the W2 series, engineered to detect small objects with precision. It provides robust performance in tight spaces, featuring a PinPoint LED light source, PNP output, and durable design for industrial environments. SICK

Technical Specifications

• Detection & Optics

  • Functional Principle: Photoelectric proximity with background suppression

  • Sensing Range: Typical 5–60 mm (max. 66 mm on high-reflectance targets) SICK

  • Light Source: PinPoint LED, red light (640 nm) with a focused 4.5 mm spot at 40 mm distance SICK

  • Ideal Application: Detecting tiny parts in tight, cluttered settings

• Dimensions & Housing

  • Dimensions: 7.7 × 21.8 × 13.5 mm (W × H × D)

  • Housing: Rectangular, robust plastic (ABS/PC), designed for easy integration into compact machinery SICK

• Electrical & Signal Specifications

  • Supply Voltage: 10–30 V DC; current consumption approx. 20 mA SICK

  • Output: PNP, light-switching mode (ON when light received); max. 50 mA load @ < 0.5 ms response SICK

  • Switching Frequency: Up to 1000 Hz — great for fast-moving or high-precision tasks SICK

• Reliability & Protection

  • Output protection includes reverse-polarity, overload, and short-circuit safeguards SICK

  • Rated IP67—fully sealed against dust and water ingress SICK

  • Shock/Vibration Resistant: 100 g / 6 ms and 10 g / 10 Hz–2 kHz SICK

  • Operational Temperature: –25 °C to +50 °C (storage: –40 °C to +75 °C) SICK

• Operations & Lifecycle

  • Response Time: < 0.5 ms

  • MTTFd: 1,547 years—indicating exceptionally high reliability SICK

• Connectivity

  • Comes with a 200 mm M8, 3-pin cable connector (PVC, Ø 3 mm) SICK

Engineering Highlights

• High Precision in Compact Form
  The sub-8 mm width and pinpoint beam make it perfect for detecting small or partially concealed components in dense assemblies.

• Fast and Responsive
  Switches at up to 1000 Hz with sub-millisecond response, ideal for packaging, pick-and-place, and high-speed detection.

• Robust & Reliable
  Rated IP67 and shock resistant, suitable for exposure to washdown, vibration, and fluctuating temperatures.

• Plug-and-Play Integration
  M8 connector simplifies cabling; self-contained diagnostics reduce the need for maintenance tools.

Suggested Product Page Description

SICK WTB2S-2P3160 Miniature Power Sensor
This compact, background-suppression photoelectric sensor delivers precision detection across ±60 mm with a focused 4.5 mm light beam. Built with a fast PNP output (up to 1000 Hz), <0.5 ms response time, and housed in robust IP67-rated housing, it excels in detecting small objects in tight, demanding industrial environments.

Key Advantages:

• Ultra-compact (7.7 × 21.8 × 13.5 mm) — perfect for space-limited applications

• Accurate detection with minimal background shifting

• Rapid switching and ultra-fast response

• Rugged, maintenance-free design with high MTTFd

• Includes plug-and-play M8 connector