Eaton EBR-3Z-2B0HA1-A Bus differential relay - 61850
Part Number: EBR-3Z-2B0HA1-A
Quick Summary
Eaton Bus differential relay provides high-impedance protection for busbars, enabling fast fault isolation in power distribution systems. Engineers often grapple with nuisance trips and slow fault clearance in complex bus configurations, making reliable protection essential. Certification specifics are not listed in the provided data; please consult Eaton documentation for CE, SIL, and IP ratings and related standards. Additionally, the device supports 50/60 Hz operation, a 5 A AC/DC contact rating, and a projection-panel mount with RJ45 communication for easy integration into existing control architectures, delivering a solid foundation for dependable protection and reduced downtime in modern substations.
Product Information
Extended Description
EBR-3Z-2B0HA1-A Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, 61850/MODBUS/DNP3 (RJ45), Projection Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0HA1-A
UPC
786679193846
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
Power Systems Experience Center Tour – Metering Focus
Eaton Specification Sheet - EBR-3Z-2B0HA1-A
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The 61850/MODBUS/DNP3 (RJ45) communications capability enables seamless integration with modern digital protective relays, improving visibility and coordination across protection schemes in panel or cabinet installations. Business Impact: Faster data exchange and improved fault diagnostics reduce MTTR and improve system uptime in critical facilities. Application: Suitable for retrofit or new-build switchgear where Ethernet-based messaging is required for coordinated protection strategies. Feature → Business Impact → Application: High-impedance protection strategy (Bus differential relay) minimizes nuisance tripping during magnetizing inrush and load changes, delivering selective fault clearance. Business Impact: Lower maintenance costs and fewer unnecessary outages, improving reliability metrics. Application: Ideal for high-density bus configurations in commercial or industrial power distribution networks. Feature → Business Impact → Application: Projection panel mounting simplifies installation in confined spaces and supports plug-and-play integration with common bezel modules. Business Impact: Reduces installation time, eliminates custom mounting hardware, and speeds commissioning. Application: Best for OEMs and panel builders deploying compact protective assemblies. Feature → Business Impact → Application: Robust electrical specifications—50/60 Hz operation, 5 A contact rating, and documented burden—support predictable performance under normal and fault conditions. Business Impact: Consistent relay behavior, easier validation, and reduced risk of misoperation. Application: Suitable for standard AC/DC signaling needs in protective relays and control circuits. Feature → Business Impact → Application: Comprehensive datasheet and compatibility with 61850/MODBUS/DNP3 protocols enable scalable integration with supervisory and protection systems. Business Impact: Easier asset management, remote diagnostics, and centralized protection coordination. Application: Fits modern substation automation environments requiring interoperable communication.
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FAQs
Install on a projection panel using a standard bezel and allocate space for a 13.64 in width, 8.62 in height, and 7.49 in depth footprint. Ensure adequate clearance for wiring, ventilation, and RJ45 communications for 61850/MODBUS/DNP3 connectivity. Plan cable routing to support the 10 W / 17 VA burden and maintain proper derating in ambient temperatures up to 60°C.
The relay provides a 5 A AC/DC contact rating with a burden of 10 W / 17 VA. It operates at a frequency rating of 50/60 Hz, which supports reliable protection in typical power distribution environments. These specs help engineers validate power flow signaling, alarm logic, and interlock schemes without overstressing the control circuit.
Yes. Designed for 50/60 Hz operation, the EBR-3Z-2B0HA1-A is a high-impedance bus differential relay intended for busbar protection in switchgear and distribution panels. Its common bezel with EBR-Z High Impedance Module supports streamlined integration, while RJ45 communication enables easy integration with digital protection schemes.
The provided data lists 'Compliances: Contact Manufacturer,' so formal CE, SIL, or IP ratings are not specified here. For definitive certification status, refer to Eaton's official datasheets or contact Eaton support to confirm current regulatory approvals and applicable standards for your region and installation.
Deploying a high-impedance bus differential relay like the EBR-3Z-2B0HA1-A can reduce nuisance trips and accelerate fault clearance, lowering unplanned downtime and maintenance costs. The integration with standard communication protocols simplifies monitoring and troubleshooting, improving asset uptime and enabling more predictable maintenance planning in industrial grids.