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Allen Bradley Guardmaster Safety Relays 440R-EM4R2

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440R-EM4R2

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The 440R-EM4R2, a safety relay expansion module from Allen Bradley's Guardmaster series, operates on a 24V DC PELV/SELV power supply and features a power-on delay of 5.5 seconds. Its compact dimensions and IP20 terminal protection make it suitable for various industrial applications.

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2 Year DO Supply Warranty
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-EM4R2

ManufacturerAllen Bradley
Product TypeExpansion Module, EM Safety Relay
Product LineGuardmaster Safety Relays
Part Number440R-EM4R2
UPC885630102221
Weight3.00 lbs (1.36 kg)
Power Supply Voltage24V DC PELV/SELV
Power-On Delay5.5 Seconds
Power Consumption3.5W
Terminal Protection RatingIP20
Wire Size24 to 14 AWG
Operating Temperature-5 to +55°C
Relative Humidity90%
Enclosure ProtectionIP40
Pollution LevelLevel 2
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The 440R-EM4R2 from Allen Bradley is an expansion module categorized under the Guardmaster Safety Relays series. It is intended for use as an EM safety relay. Operating with a voltage supply of 24V DC under the PELV/SELV standard, the module is efficient in various settings. Upon powering up, a delay of 5.5 seconds is required before the device is fully operational. With a power consumption of 3.5W, this relay module is designed to optimize energy use while maintaining responsive safety performance.

The dimensions of this module are 119.14 mm in length, 22.5 mm in width, and 113.6 mm in height, allowing for convenient installation. The terminal protection rating of IP20 signifies that it is best suited for areas without direct exposure to water or particles. In terms of environmental adaptability, the 440R-EM4R2 operates effectively within an ambient temperature range from -5°C to +55°C and can withstand 90% relative humidity. Additionally, its enclosure is rated at IP40, offering resistance against solid objects larger than 1 mm and moisture.

Furthermore, it accommodates wire sizes ranging from 24 to 14 AWG, facilitating diverse connectivity options. Weighing approximately 0.5 pounds, the module’s design is lightweight yet robust, and it conforms to pollution level 2 standards, portraying its suitability for a variety of industrial applications where environmental challenges are present.