SICK Background Suppression Photoelectric Sensor, Miniature Sensor, 4 → 220 mm, PNP/NPN, IP66, IP67

SICK Series W4 Photoelectric Sensor, IP66, IP67, LED Light Source - WTB4FP-22161120A00

This photoelectric sensor detects objects using background suppression for reliable presence sensing in industrial automation environments. It operates from low-voltage DC and is intended for wall-mounted installations where a miniature form factor and robust ingress protection are required. The sensor is suitable for use in machinery and process control contexts that demand Compact detection with Rapid switching.

Features & Benefits

• LED emitter for clear detection and simple diagnostics
  Response time 500μs for Rapid object recognition
  Operating range -40 to 60°C for high-temperature environments
  IP66/IP67 rating for protection against dust and powerful water jets
  PNP/NPN selectable output for flexible Interface integration
  M8 connector and 4-pin connector for quick electrical connection

**Applications**

• Suitable for conveyor end-of-line presence detection
  Ideal for pick-and-place automation in Compact assemblies
  Used for object sorting where background suppression reduces false triggers
  Can be used for safety-related sensing in harsh washdown areas
  Used with control panels requiring low-current sensing inputs

What power limits should be observed when wiring the device?

The sensor must be supplied within a maximum DC voltage of 30V and draw no more than 25 mA during operation.

Which connector types are provided for electrical connection?

Electrical interfacing is via an M8 connector and an alternative 4-pin connector option for system wiring.

How does the housing withstand mechanical and environmental stress?

The enclosure is MADE from Vistal plastic and complies with relevant vibration and shock standards specified in IEC/EN test protocols.

Which safety and performance standards relate to the light source?

The sensor’s light-emitting module meets IEC/EN standards for photobiological safety as listed in the supplied approvals.

Is the unit suitable for panel or wall mounting in machinery?

Yes, it is designed for wall mounting and the miniature style accommodates tight installation spaces.