Allen-Bradley 440R-D22R2 Guardmaster Dual Input Safety Relay, 24V DC, 2 NO Outputs

Designed for safety-centric environments, the Allen Bradley 440R-D22R2 safety relay functions effectively as a critical control element. Its dual-channel universal inputs allow for enhanced safety monitoring and response. Operating with a nominal supply voltage of 24 V DC, the relay accepts voltages ranging from 20.4 to 26.4 V DC. Power consumption is maintained at 3.3 watts.

The unit features an enclosure with IP40 protection, safeguarding it against dust and other particulates, while the terminal side is rated at IP20. This ensures that the relay is suitable for various applications while maintaining adequate protection levels. The safety relay includes two normally open safety outputs for reliable circuit control.

For additional functionality, this model provides a PNP auxiliary output with a maximum rating of 50 mA. Output ratings include AC-15 capability of 3 A at 250 V AC and DC13 functionality at 4 A at 24 V DC at a low frequency of 0.1 Hz. In terms of current handling, the continuous output current for a single wire safety application is rated at 50 mA, while it can surge up to 700 mA when necessary.

This safety relay can withstand impulse voltages of up to 2500 V, ensuring resilience against transient surges. The relay is designed for DIN-rail mounting, enabling straightforward installation in various control panels and enclosures. With its comprehensive protection features and robust performance, the 440R-D22R2 is an ideal solution for safety relay applications.