Eaton BU-EAFR-101D Arc flash relay point sensor - 12-point
Part Number: BU-EAFR-101D
Quick Summary
Eaton arc flash relay point sensor protects personnel and equipment by detecting arc flash events and initiating protective actions in electrical panels. Engineers often face nuisance trips and complex wiring during panel upgrades; this device simplifies retrofits with DIN rail mounting and a scalable sensor count. Consider CE conformity, IP-rated enclosures, and SIL safety logic as key references when selecting arc flash protection for harsh industrial environments. Used in switchgear and control panels, the BU-EAFR-101D delivers faster fault isolation and improved protection coordination, reducing downtime and enhancing maintenance planning. Its compact footprint and Eaton compatibility streamline procurement and spare parts planning.
Product Information
Extended Description
BU-EAFR-101D Eaton: Eaton arc flash relay point sensor, Max 12 point sensors, 4 Trip relays, DIN rail mounted, ARC FLASH RELAY, POINT SENSOR UNIT
Product Name
Eaton arc flash relay point sensor
Catalog Number
BU-EAFR-101D
UPC
051712748223
Product Length/Depth
1.34 in
Product Height
4.33 in
Product Width
5.71 in
Product Weight
1 lb
Compliances
Contact Manufacturer
Type
Arc flash relay
Feature: Scalable sensing for up to 12 point sensors and 4 trip relays; Business Impact: Enables precise protection zoning across large switchgear while minimizing nuisance trips; Application: Best for mid to large panel assemblies where multiple feeders require coordinated protection. The integration reduces downtime by delivering targeted tripping signals and improving protection coordination in complex control schemes. Application example: a multi-feeder MCC or switchboard retrofit. Feature: DIN rail mounted, plug-and-play installation; Business Impact: Speeds up retrofits, lowers installation labor costs, and reduces field wiring complexity. Application: retrofits in existing control panels without custom enclosures, enabling rapid deployment across plants. Feature: Arc flash relay function at core; Business Impact: Enhances personnel safety and reduces arc energy exposure through fast detection and tripping; Application: new builds and revamps in process and power distribution environments. Feature: Point sensor unit design; Business Impact: Delivers precise fault location detection with scalable channeling to protect critical circuits; Application: feeder protection in industrial plants with high electrical density. Feature: Documentation and compatibility; Business Impact: Access to Eaton specification sheet and seamless integration with Eaton protection ecosystems, reducing risk during procurement and commissioning; Application: project teams standardizing on Eaton safety components. Feature: Compact footprint and panel-friendly dimensions; Business Impact: Optimizes DIN rail space in crowded panels, enabling easier interconnections and better airflow; Application: control cabinets in manufacturing lines and packaging equipment.
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FAQs
Begin by verifying panel space and power supply compatibility, then mount the BU-EAFR-101D on a standard DIN rail. Connect sensor channels and trip outputs per the Eaton specification sheet, ensuring proper wiring safety clearances. The unit is designed for quick retrofit with minimal cabling changes, which reduces commissioning time and potential wiring errors.
The BU-EAFR-101D supports up to 12 point sensors and includes 4 trip relays, enabling scalable protection coverage across multiple feeders within a single panel or switchgear assembly.
Yes. The BU-EAFR-101D is designed to integrate with Eaton protection ecosystems, providing seamless coordination with other Eaton arc flash and protection components to simplify procurement and system commissioning.
Key considerations include CE conformity and appropriate enclosure IP ratings for your environment, along with safety-related control logic compatibility. Note that formal compliances for this specific model are listed as 'Contact Manufacturer'; verify available certifications on the latest Eaton documentation during procurement.
By enabling faster arc flash detection, reducing nuisance trips, and simplifying retrofits, the BU-EAFR-101D can lower downtime costs, shorten commissioning cycles, and extend component life through improved protection coordination, delivering measurable operational savings over the lifecycle of industrial control panels.