Eaton BU-EAFR-110F Arc Flash Relay Point Sensor - 3PH/Ground
Part Number: BU-EAFR-110F
Quick Summary
Eaton arc flash relay BU-EAFR-110F provides fast arc fault detection and current sensing for three‑phase electrical systems in industrial plants. Operators often struggle with nuisance trips and slow fault isolation, leading to downtime and safety risk. Compliance considerations include CE marking for many regions, SIL readiness for protective safety criticality, and IP-rated enclosures—verify with Eaton for your installation. By combining fiber loop sensor compatibility with high‑speed outputs and multiple trip relays, the BU-EAFR-110F enables faster fault isolation, improved personnel safety, and lower total cost of ownership for maintenance-heavy facilities. This solution supports scalable protection schemes and smoother integration with existing protective relays, wiring, and PLCs.
Product Information
Extended Description
BU-EAFR-110F Eaton: Eaton arc flash relay point sensor, 3PH and ground current detection, Max 3 fiber loop sensors, 2 high speed outputs, 4 Trip relays, ARC FLASH RELAY, CURRENT, FIBER LO
Product Name
Eaton arc flash relay point sensor
Catalog Number
BU-EAFR-110F
UPC
051712748032
Product Length/Depth
6.46 in
Product Height
6.18 in
Product Width
3.23 in
Product Weight
2 lb
Compliances
Contact Manufacturer
Type
Arc flash relay
Feature arc flash relay with 3PH and ground current detection → Business Impact rapid fault recognition and selective tripping reduces arc flash energy and protects personnel; Application ideal for motor control centers and switchgear in manufacturing and process facilities. Feature up to 3 fiber loop sensors → Business Impact EMI-immune, multi-zone monitoring minimizes false trips and shortens fault diagnosis; Application large switchgear vaults and complex feeders. Feature 2 high-speed outputs and 4 trip relays → Business Impact enables fast, coordinated protection across feeds and sections; Application supports reliable protective schemes with programmable trip logic. Feature compact form factor with defined dimensions (6.46 in L, 6.18 in H, 3.23 in W) and 2 lb weight → Business Impact easy retrofits and panel space optimization; Application suitable for retrofit projects in crowded control panels. Feature compatibility with standard arc flash relay configurations and fiber sensing networks → Business Impact simplifies installation and ongoing maintenance; Application reduces integration time with existing protection architectures.
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FAQs
Plan for up to three fiber loop sensors and connect to the BU-EAFR-110F's two high‑speed outputs and four trip relays. Place the device inside the panel in a location with clean wiring routes, then wire the fiber loops to sensor inputs and tie the trip relays into the protective circuit. Verify wiring diagrams provided by Eaton and coordinate with your PLC or protection relay system for seamless integration.
Core specs include three‑phase and ground current detection, support for up to three fiber loop sensors, two high‑speed outputs, and four trip relays. Dimensions are 6.46 in L × 6.18 in H × 3.23 in W with a 2 lb weight. UPC is 051712748032 and the catalog number is BU-EAFR-110F, enabling precise protection decisions in busy electrical rooms.
Yes. The BU-EAFR-110F provides fast arc fault detection and current monitoring essential for uptime-critical environments. Its fiber loop sensor capability and multiple trip relays support scalable, zone-based protection suitable for data centers, manufacturing lines, and large switchgear assemblies, helping to minimize unplanned downtime and protect personnel.
Compliance is specified by the manufacturer. Check for CE marking, SIL readiness, and enclosure IP ratings relevant to your region and environment. Since Eaton lists compliances as installation-dependent, verify exact certifications with Eaton for your site requirements and ensure alignment with local safety and electrical standards.
The unit enables faster fault isolation, reducing arc flash exposure and downtime, which translates to lower maintenance costs and improved overall equipment reliability. With fiber loop sensing and programmable trip logic, the system supports easier diagnostics and longer intervals between major protective relays maintenance, delivering measurable ROI over time.