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Product Description
The Allen Bradley 440R-EM4R2 Guardmaster safety relay expansion module is a 24V DC (PELV/SELV) EM safety relay with a 5.5-second startup delay and 3.5W power consumption. Measuring 119.14 x 22.5 x 113.6 mm and weighing 0.5 pounds, it features IP20 terminal protection and IP40 enclosure protection, operates between -5C and +55C with up to 90% humidity, accepts 24-14 AWG wire, and is designed for pollution degree 2 environments.
Is Your Device Showing These Signs?
The Allen Bradley 440R-EM4R2 safety relay commonly experiences issues such as failure to energize outputs due to internal component degradation, often stemming from capacitor aging or relay coil burnout. Input circuit malfunctions, including short circuits or open circuits in the safety input channels, prevent proper monitoring of safety devices. Communication errors on the expansion module interface disrupt safety system functionality, requiring inspection of wiring and replacement of faulty communication ICs. Contamination or corrosion on terminal blocks causes intermittent connectivity, leading to nuisance trips and system downtime; cleaning or terminal block replacement resolves this. Firmware corruption necessitates a reflash to restore proper operation and address software-related errors.
Technical specifications
The Allen Bradley 440R-EM4R2 Guardmaster is a 24V DC safety relay expansion module with a 5.5-second startup delay and 3.5W power consumption. It's compact, lightweight, and designed for pollution degree 2 environments, operating in temperatures from -5C to +55C with up to 90% humidity. It accepts 24-14 AWG wire and offers IP20 terminal and IP40 enclosure protection.
Our Repair Process for the
440R-EM4R2
Our repair process for the Allen Bradley 440R-EM4R2 safety relay begins with a comprehensive diagnostic evaluation to pinpoint the failure. This includes a thorough inspection of the output circuits for component degradation, specifically capacitor aging and relay coil burnout, necessitating component replacement. Input circuits are meticulously tested for short or open circuits, with faulty components being repaired or replaced. Communication errors are addressed through a detailed inspection of wiring and replacement of any faulty communication ICs. Terminal blocks are examined for contamination or corrosion, and are either cleaned or replaced to ensure proper connectivity. Finally, suspected firmware corruption is resolved through a complete reflash to restore the relay to its operational state.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.
Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
To receive a quote within 2 hours, please provide us with the details of your requirements. Our team will promptly review your request and send you a custom offer.
Ships from Rochester, NY