Eaton BU-EAFR-102B Arc Flash Relay Point Sensor - Fiber Loop
Part Number: BU-EAFR-102B
Quick Summary
Eaton arc flash relay point sensor detects arc faults and trips to protect electrical switchgear. Engineers face nuisance trips and complex wiring when protecting feeders; this device simplifies installation with fiber loop sensor options and up to four NC trip relays. Key certifications and compliance considerations include CE, SIL, and IP ratings—check with Eaton for BU-EAFR-102B specifics and regional requirements. By delivering faster fault clearance and coordinated protection, it reduces downtime and extends equipment life. The unit’s compact footprint and standard UPC support field deployment, inventory control, and easier maintenance, while offering scalable protection for growing electrical systems in industrial facilities.
Product Information
Extended Description
BU-EAFR-102B Eaton: Eaton arc flash relay point sensor, Fiber loop sensor unit, Max 3 fiber loop sensors, 4 Trip relays, NC trip contact, CURRENT, POINT SENSOR UNIT, NC TRIP RELA
Product Name
Eaton arc flash relay point sensor
Catalog Number
BU-EAFR-102B
UPC
051712748117
Product Length/Depth
6.89 in
Product Height
6.18 in
Product Width
1.85 in
Product Weight
1 lb
Compliances
Contact Manufacturer
Type
Arc flash relay
Feature: Four NC trip relays with a NC trip contact provide flexible coordination and staged shutdown for feeders. Business impact: This reduces nuisance trips and enables selective protection sequences, improving uptime and limiting collateral damage. Application: Ideal for electrical distribution panels, switchgear lineups, and feeder protection in industrial facilities. Feature: Fiber loop sensor unit supports up to three fiber loop sensors. Business impact: Enhances sensing reliability and fault discrimination, delivering faster clearance and safer operation. Application: Suitable for plants with segmented protection zones and complex bus configurations. Feature: Compact form factor—6.89 in length, 6.18 in height, 1.85 in width—and a 1 lb weight. Business impact: Simplifies retrofits, reduces cabinet intrusion, and speeds installation. Application: Fits constrained panels and control cabinets without extensive rearrangement. Feature: Arc flash relay delivery program classification with standard UPC 051712748117 and general specifications including product name and catalog number. Business impact: Improves procurement traceability and project planning. Application: New installs and upgrades across industrial protection architectures.
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FAQs
BU-EAFR-102B supports up to three fiber loop sensors, enabling flexible protection schemes and enhanced fault discrimination within switchgear or distribution panels.
The unit includes four NC trip relays and an NC trip contact, plus a current point sensor. It uses BU-EAFR-102B cataloging and measures about 6.89 in L, 6.18 in H, and 1.85 in W with a 1 lb weight.
Ideal for electrical distribution panels, motor control centers, and other switchgear protection in industrial facilities, delivering rapid arc fault protection and coordinated tripping.
Compliances are listed as Contact Manufacturer; typical sector standards such as CE, SIL, and IP may apply depending on region—verify model BU-EAFR-102B specifics with Eaton.
Multiple NC trip relays reduce nuisance trips, streamline wiring, and simplify maintenance, delivering improved reliability, shorter fault clearance times, and easier asset management.