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Allen Bradley Guardmaster Safety Relays 440R-EM4R2D

Product image is representative; revision or series may vary. Contact us to request a specific version.

440R-EM4R2D

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The 440R-EM4R2D EMD safety relay from Allen Bradley's Guardmaster series operates at a supply voltage of 24 VDC. Designed for efficiency, this relay features a maximum power-on delay of 7 seconds and operates with a power consumption of only 2.9 watts.

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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-EM4R2D

ManufacturerAllen Bradley
Product TypeEMD Safety Relay
Product LineGuardmaster Safety Relays
Part Number440R-EM4R2D
Weight0.56 lbs (0.26 kg)
UPC885630181691
Terminal Screw Torque0.4 Nm
Supply Voltage24 VDC
Max. Power on Delay7 seconds
Power Consumption2.9 W
Case MaterialPolyamide PA 6.6
Terminal ProtectionIP20
Enclosure ProtectionIP40
Minimum Operating Temperature-5 °C
Maximum Operating Temperature55 °C
Relative Humidity90% (non-condensing)
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The Allen Bradley 440R-EM4R2D represents a reliable option as an EMD safety relay within the Guardmaster safety relays series. This device is powered by a supply voltage of 24 VDC, allowing it to operate efficiently in various applications. Designed with a maximum power-on delay of 7 seconds, this relay offers flexible timing to accommodate different system requirements.

Power consumption is noted at 2.9 watts, promoting energy efficiency in safety systems when in operation. The construction of this relay utilizes polyamide PA 6.6 as the casing material, enhancing durability and resistance to environmental factors.

In terms of connectivity, the terminal screw torque stands at 0.4 Nm, facilitating secure wiring connections. The unit provides IP20-rated terminal protection, ideal for reducing exposure to accidental contact with live conductors. Additionally, the enclosure protection rating is IP40, suitable for safeguarding internal components from dust and other contaminants.

The operational temperature range for the relay spans from -5 °C to 55 °C, making it versatile for use in varying ambient conditions. Finally, it can handle relative humidity levels up to 90% without condensation, ensuring continued performance reliability in humid environments.