SICK Background Suppression Photoelectric Sensor, Block Sensor, 2 mm → 120 mm, PNP, IP67

Sick G2S Series Photoelectric Sensor, 600μs Response Time, IP67 - GTB2S-P5451

This photoelectric sensor is a Compact background-suppression proximity device designed for industrial automation tasks. It uses a visible red pin‑point LED to detect objects across a practical working span and operates from low‑voltage DC supplies, making it suitable for control and sensing installations where reliable light‑based detection and a Compact form factor are required.

Features & Benefits

• Fast response time 600 μs improves detection of Rapid parts
  Output PNP allows direct interfacing with PLC inputs
  Maximum supply 30V supports common control voltages
  Current draw ≤50 mA minimises load on supply rails
  IP67 enclosure rating enables use in wash‑down or dusty zones
  M8 connector simplifies quick wiring and replacement

Applications

• Suitable for small‑part presence detection on assembly lines
  Ideal for conveyor speed synchronisation and indexing
  used with pick‑and‑place heads for object confirmation
  Can be used for edge detection of opaque components
  Suitable for panel‑mounted sensing in control cabinets

What type of light source does it use and how precise is the beam?

It employs a pin‑point LED emitting at 640 nm with a light spot about Ø3.5mm at 50 mm, giving concentrated illumination for accurate detection.

How is the sensor adjusted for different object reflectivities?

Detection threshold is set via a three‑turn potentiometer allowing fine tuning for surfaces ranging from high to low remission.

Which electrical connections and protections are provided?

The unit has a 3‑pin M8 connector with built‑in reverse‑polarity protection, interference suppression and output overcurrent/short‑circuit protection features.

What environmental and temperature limits apply to operation?

The device operates between -25 °C and +50 °C and is rated to IP67 for protection against dust and temporary immersion.

What switching performance can be expected under load?

Switching frequency reaches up to 800 Hz with a signal transit time under 0.6 MS when used with resistive loads.

Notes

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