SICK Retroreflective Photoelectric Sensor, Block Sensor, 1.2 m, PNP, IP67

SICK Series W2 Photoelectric Sensor, Retroreflective Detection Type, IP67 - WL2SG-2P3235

This photoelectric sensor is a Compact device designed to detect transparent items using a retro‑reflective optical arrangement. It operates in industrial automation settings and connects via an M8 interface, offering a solid‑state PNP switching solution in a small block‑style housing constructed from ABS and polycarbonate blends. The unit is suitable for in‑line sensing tasks where precise optical detection and environmental protection are required.

Features & Benefits

• Retro‑reflective sensing enables non‑contact transparent object detection
  IP67 rating permits operation in wet or dusty industrial locations
  Pin‑point LED light source provides focused beam accuracy
  PNP output supports sourcing logic for common control systems
  4‑pin M8 Terminal simplifies Compact cable connection
  500 μs response time allows quick detection for fast processes

**Applications**

• Suitable for transparent bottle detection on filling lines
  Ideal for presence sensing on packaging conveyors
  Used with pick‑and‑place equipment for part verification
  Can be used for edge detection in assembly automation

What electrical limits should I observe when wiring the sensor?

The sensor must not exceed a 30V DC supply and the output circuit should be rated for no more than 50 mA continuous current.

How does the device cope with temperature variations on the factory floor?

It is specified to operate between −20 °C and 50 °C, so it is appropriate for typical indoor manufacturing environments without additional climate control.

What approvals or safety recognitions does the unit carry?

The product is listed under UL file NRKH.E181493, indicating recognised component status for integration into larger systems.

How is the product physically terminated for connection to control equipment?

Connections are MADE via a 4‑pin Terminal using an M8 Interface suitable for standard industrial cabling.

Notes

Product details cover the whole product family. For details on the specifications for this individual product, please refer to the datasheet.