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Allen Bradley Guardmaster Safety Relays 440R-D22R2

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440R-D22R2

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The 440R-D22R2 is a safety relay manufactured by Allen Bradley, designed for reliable safety applications. It operates on a nominal supply voltage of 24 V DC and features dual-channel inputs to enhance operational integrity.

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Ships from Raleigh, NC
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Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 440R-D22R2

ManufacturerAllen Bradley
Product TypeSafety Relay
Product LineGuardmaster Safety Relays
Part Number440R-D22R2
UPC885630102207
Weight0.44 lbs (0.20 kg)
Safety Inputs2 Dual-Channel Universal Inputs
Supply Voltage24 V DC nominal (20.4–26.4 V DC)
Power Consumption3.3 W
Terminal ProtectionIP20
Enclosure ProtectionIP40 (NEMA 1)
Safety Outputs2 × Normally Open (Safety Contacts)
Auxiliary Output1 × PNP, 50 mA max
Output RatingsAC-15: 3 A @ 250V AC & DC13: 4 A @ 24V DC (0.1 Hz)
Continuous Output Current (Single Wire Safety)50 mA
Surge Output Current (Single Wire Safety)700 mA
Impulse Withstand Voltage2500 V
Mounting TypeDIN-Rail
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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.