Allen‑Bradley 440R-D22R2 Safety Relay | GuardShield, Single Beam, 2m, PNP, Type 4, for Personnel Protection

Allen‑Bradley 440R-D22R2 Safety Relay | GuardShield, Single Beam, 2m, PNP, Type 4, for Personnel Protection

Allen‑Bradley 440R-D22R2 safety sensor specifications. GuardShield single-beam safety sensor, 2m range, PNP OSSD outputs, Type 4, for point-of-operation guarding.

Product Overview

The Allen‑Bradley 440R-D22R2 is a Type 4 safety light curtain, part of the GuardShield series. It is a single-beam, through-beam safety sensor designed for personnel protection at machinery access points. The system consists of a matched transmitter and receiver pair, creating a single protective beam with a 2-meter range. It provides two PNP safety outputs (OSSDs) and is designed for easy integration into safety circuits to stop hazardous machine motion when the beam is interrupted.

Technical Specifications

Key Features

• Type 4 Safety (Cat. 4, PL e):​ For high-risk personnel protection

• Single-Beam Design:​ Simple solution for guarding access points, hatches, or doors

• 2-Meter Range:​ Flexible mounting distance

• Dual PNP OSSD Outputs:​ Provides safety signals for connection to a safety controller

• External Device Monitoring (EDM):​ Monitors the status of the downstream safety circuit

• Integrated Alignment Aids:​ LED indicators for easy installation and alignment

• Compact and Robust:​ IP65 rated polycarbonate housing

• Pre-wired Connection:​ Supplied with fixed 2-meter cables and quick-disconnect plugs

Applications

• Point-of-operation guarding on presses, robots, and assembly stations

• Access protection for machinery enclosures and hazardous zones

• Perimeter guarding for specific access points

• Integration into safety systems requiring a simple, single-beam presence detection

Important Notes

1. This is a safety device; it must be integrated into a safety control system by qualified personnel following all applicable standards (e.g., ISO 13849, IEC 62061).

2. The product is supplied as a matched transmitter/receiver pair; the units are calibrated to work together.

3. The OSSD outputs must be connected to a safety relay, safety PLC, or other approved safety evaluation device.

4. A risk assessment must be performed to ensure this device provides adequate protection for the specific application.

5. Regular functional testing is required as part of the machine's safety maintenance schedule.