Eaton BU-EAFR-110P-B Arc Flash Relay Sensor - 18-72V
Part Number: BU-EAFR-110P-B
Quick Summary
The Eaton arc flash relay point sensor protects electrical distribution by rapidly detecting arcing faults in switchgear. This device provides fast fault sensing for panel boards and motor control centers, aiding operators in reducing outage times and equipment damage. While many systems struggle with nuisance trips and complex wiring, the BU-EAFR-110P-B delivers reliable signaling from a compact point sensor unit powered by 18-72 Vdc. Compliances vary by region, so confirm certification status with the manufacturer; typical arc-flash protection gear emphasizes CE marking, IP protection, and SIL readiness in modern fleets. For procurement, the solution offers straightforward installation and predictable performance, while enabling scalable protection across multiple panels and facilities.
Product Information
Extended Description
BU-EAFR-110P-B Eaton: Eaton Arc Flash Relay Point sensor unit, 18-72 Vdc power supply, EAFR, CURRENT, POINT SENSOR UNIT, 18-72V
Product Name
Eaton arc flash relay point sensor
Catalog Number
BU-EAFR-110P-B
UPC
051712748186
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 → Business Impact → Application: Wide voltage input 18-72 Vdc simplifies wiring and reduces inventory needs, enabling faster field deployment across multiple panels and MCCs. This translates to lower commissioning costs and less downtime during upgrades in manufacturing lines and data centers, while maintaining consistent protection performance for arc fault events. Feature → Business Impact → Application: Arc flash relay with point sensor unit delivers precise fault signaling at the location of interest, minimizing nuisance trips and enabling targeted protection in switchgear assemblies. Use this in switchgear and panel boards to enhance safety and uptime for critical processes. Feature → Business Impact → Application: Compact footprint and straightforward integration reduce installation complexity in tight control panels, allowing technicians to leverage existing Eaton protection ecosystems and minimize cabinet rework. This supports scalable protection across multi-panel architectures in industrial plants. Feature → Business Impact → Application: Clear, regional-compliance guidance (with manufacturer confirmation) ensures alignment with local safety standards, reducing risk during audits and maintenance windows. This helps maintenance teams plan preventive interventions with confidence and maintain regulatory readiness. Feature → Business Impact → Application: Reliability and diagnostics support enable proactive maintenance and faster fault triage, lowering mean time to repair and extending equipment life in continuous-process environments such as steel, automotive, and food & beverage facilities.
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FAQs
The BU-EAFR-110P-B is designed as a plug-in point sensor unit powered by 18-72 Vdc, suitable for Eaton and compatible third-party switchgear when used within standard control panel architectures. Ensure wiring conforms to the 18-72 Vdc supply, and verify mounting provisions, sensor alignment, and panel clearance prior to deployment. Proper integration minimizes wiring complexity and supports reliable fault signaling in protective schemes.
Key specs include a 18-72 Vdc power input range, a compact form factor with dimensions around 6.46 in by 6.18 in by 3.23 in, and a weight of approximately 2 lb. It functions as an arc flash relay with a point sensor configuration, suitable for panel boards and MCC protection schemes, delivering fast fault indication to improve safety and response times.
This model is designed for arc-flash protection applications and follows industry best practices for protection relays. Compliances are region-specific and should be confirmed with the manufacturer prior to procurement. In practice, arc-flash protection devices are evaluated against CE, IP, and SIL frameworks to support safe operation in industrial environments.
Installation requires a stable 18-72 Vdc supply, proper mounting within an enclosure, and correct connection to the protected circuit. Follow Eaton’s installation guidelines for terminal wiring, sensor placement, and interconnection with the protection logic. Proper wiring reduces false trips and ensures reliable arc-fault signaling across multiple panel sections.
Integrating an arc flash relay like BU-EAFR-110P-B can lower downtime by enabling rapid fault detection and selective tripping, reducing damage to switchgear and extending service life. With simplified wiring and compatibility across Eaton protection ecosystems, maintenance teams achieve faster diagnostics, improved safety, and a lower total cost of ownership over the equipment lifecycle.