Eaton Bus differential relay EBR-3Z-2B0FA1-A - High Impedance
Part Number: EBR-3Z-2B0FA1-A
Quick Summary
Eaton Bus differential relay protects feeders by detecting current imbalances in electrical networks. This device is engineered for high-impedance protection schemes where precise coordination and selectivity are critical. Engineers often wrestle with nuisance trips and slow fault isolation in bus protection, particularly in complex configurations. Although the data here notes a 50/60 Hz rating, a 5 A contact rating, and projection panel mounting, confirm compliance with CE, SIL, and IP expectations with the manufacturer and your local standards. For installers and control engineers, this relay offers robust protection combined with easy SCADA integration and scalable protection architecture through MODBUS/DNP3, reducing risk and accelerating commissioning.
Product Information
Extended Description
EBR-3Z-2B0FA1-A Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, MODBUS/DNP3 (FO ST), Projection Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0FA1-A
UPC
786679194843
Product Length/Depth
7.49 in
Product Height
8.62 in
Product Width
13.64 in
Product Weight
12.7 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
Contact Manufacturer
Type
Bus differential relay
Burden
10 W / 17 VA
Frequency rating
50/60 Hz
Mounting method
Projection panel
Contact Rating
5 A ac / dc
Operating temperature
-20° to 60°C
High impedance bus differential protection delivers precise sensing of current imbalances across bus sections, improving selectivity and reducing nuisance trips. The business impact is clearer fault isolation and shorter outage durations, which translate to lower maintenance costs and higher system availability. It’s well suited for substations and distribution panels where complex wiring can otherwise obscure fault signatures.MODBUS/DNP3 (FO ST) communication enables seamless integration with SCADA, fault monitoring, and control systems. The result is faster operator decision-making, easier alarm correlation, and a scalable protection architecture that grows with the plant.Projection panel mounting and a common bezel design simplify installation and maintenance, enabling retrofit into existing frames with minimal wiring changes. This reduces commissioning time and supports modular upgrades without replacing entire cabinets.With a modest 10 W / 17 VA burden and a 5 A AC/DC contact rating, the relay pairs with standard signaling networks while keeping power usage controlled in cabinet space. The operating temperature range of -20 to 60 °C ensures reliable performance in harsh environments found in industrial facilities.The device’s 50/60 Hz operating frequency and robust construction support reliable protection coordination with adjacent devices, improving overall system reliability and uptime.
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FAQs
The relay uses projection panel mounting, designed for installation in standard bezel configurations. This approach provides straightforward alignment, secure retention, and compatible wiring routes, reducing installation time and ensuring reliable protection coordination with nearby devices.
It features a 5 A AC/DC contact rating and operates at 50/60 Hz. The device implements high-impedance bus differential protection, with a burden of 10 W / 17 VA, delivering precise fault sensing while minimizing impact on signaling circuits.
Dimensions are 7.49 in depth, 8.62 in height, and 13.64 in width, with a weight of 12.7 lb. These measurements support retrofit planning in tight panel spaces and facilitate stable mounting in projection-panel frames.
The relay supports MODBUS/DNP3 (FO ST) communication, enabling seamless integration with SCADA systems, remote monitoring, event logging, and centralized control for enhanced protection coordination.
Compliances are listed as 'Contact Manufacturer' for confirmation of specific certifications. Warranty follows Eaton policy 25-000: one year from installation or eighteen months from shipment, whichever comes first.