Eaton BU-EAFR-102 Arc Flash Relay - Fiber Loop Sensor
Part Number: BU-EAFR-102
Quick Summary
The Eaton arc flash relay BU-EAFR-102 detects arc faults in switchgear and motor control centers. Engineers often contend with nuisance trips and limited fault visibility, which drives downtime and maintenance costs. Compliance varies by region; CE marking and IP-rated options are common for this class of protection devices, and SIL considerations may apply—verify with the manufacturer. This compact fiber loop sensor solution integrates with existing protection schemes to improve safety, minimize unplanned outages, and help sustain regulatory readiness across industrial facilities. The BU-EAFR-102 supports up to three fiber loop sensors and four trip relays, enabling precise coordination and scalable deployment for mid-size to large electrical rooms.
Product Information
Extended Description
BU-EAFR-102 Eaton: Eaton arc flash relay point sensor, Fiber loop sensor unit, Max 3 fiber loop sensors, 4 Trip relays, ARC FLASH RELAY,FIBER LOOP SENSOR
Product Name
Eaton arc flash relay point sensor
Catalog Number
BU-EAFR-102
UPC
051712748056
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: Up to three fiber loop sensors per BU-EAFR-102. Business Impact: Enhanced arc fault detection precision reduces nuisance trips and false alarms, lowering unplanned downtime. Application: Ideal for switchgear and motor control centers seeking reliable selective protection. Feature: Four trip relays. Business Impact: Flexible coordination and staged response reduce outage impact and simplify protective scheme tuning. Application: Supports multi-point fault isolation in complex electrical networks. Feature: Compact enclosure footprint (6.89 in L x 6.18 in H x 1.85 in W). Business Impact: Easier panel integration lowers installation time and space requirements. Application: Fits standard electrical cabinets in MCCs and switchgear assemblies. Feature: Arc flash relay technology paired with fiber loop sensing. Business Impact: Improves safety margins and regulatory compliance while enabling proactive maintenance scheduling. Application: Used in modern electrical protection architectures with fiber optic sensing integration. Feature: Listed as an arc flash relay product with clear catalog identity BU-EAFR-102. Business Impact: Streamlined procurement and asset management, facilitating maintenance planning and stock control. Application: Suitable for retrofit projects or new installations within Eaton-protected protection ecosystems.
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FAQs
BU-EAFR-102 installs within standard switchgear or MCC cabinets and supports up to three fiber loop sensors. It uses four trip relays for flexible protection coordination. To maximize compatibility, reference the Eaton specification sheet and ensure fiber loops are correctly routed to the sensor inputs, following the panel layout guidelines for safe, compliant installation.
Key specs include four trip relays and support for up to three fiber loop sensors, providing selective arc fault detection. The physical footprint is 6.89 inches long, 6.18 inches high, and 1.85 inches wide, with a weight of about 1 pound. The catalog number is BU-EAFR-102 and the UPC is 051712748056.
Yes. BU-EAFR-102 is designed as an arc flash relay point sensor for switchgear and motor control centers. Its fiber loop sensor capability and four-relay configuration support precise arc fault detection and fast, coordinated responses, improving safety and reducing downtime in industrial protection schemes.
Compliances for BU-EAFR-102 are listed as 'Contact Manufacturer' for region-specific certifications. CE marking and IP-rated options are commonly associated with arc flash protection devices in this category, and SIL considerations may apply depending on your safety system. Always confirm current certifications with Eaton prior to project approval.
The device reduces unplanned outages by delivering precise fault detection and targeted tripping, which lowers downtime costs and extends equipment life. The four-relay arrangement enables flexible protection schemes, while fiber loop sensing minimizes nuisance trips, leading to smoother maintenance planning and improved safety compliance across protected assets.