Eaton EBR-3Z-2B0IB1-A Bus Differential Relay - High-Impedance
Part Number: EBR-3Z-2B0IB1-A
Quick Summary
Eaton Bus differential relay protects busbars by detecting mismatched currents in electrical substations and switchgear, enabling fast isolation and reduced downtime. Engineers often struggle with coordinating protection across feeders, leading to nuisance tripping and inconsistent protection margins. Certification and compliance requirements in many facilities include CE marking, SIL safety qualifications, and IP-rated enclosures; verify with Eaton to meet site standards. With MODBUS/DNP3 communications, projection-panel mounting, and conformal coating, the unit integrates with existing systems, improving visibility, diagnostics, and maintenance planning while lowering operating costs.
Product Information
Extended Description
EBR-3Z-2B0IB1-A Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, MODBUS/DNP3 (RS485 OR RJ45), Conformal Coating, Projection Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0IB1-A
UPC
786679195598
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 protection with precise differential sensing provides improved selectivity, helping operators avoid unnecessary trips while ensuring fast fault isolation in busbar configurations. This translates to reduced downtime and safer startup sequences in substations and switchgear assemblies. The 50/60 Hz operating range and 5 A contact rating support both AC and DC applications, enabling flexible protection for feeders and downstream equipment. MODBUS/DNP3 communication via RS485 or RJ45 simplifies integration with SCADA and energy management systems, delivering real-time data and easier remote diagnostics. Projection-panel mounting and a common bezel design streamline retrofits, minimizing field wiring changes and shortening install timelines. Conformal coating enhances reliability in harsh environments, extending maintenance intervals and reducing service costs over the asset’s lifecycle. The included burden of 10 W / 17 VA and energy absorption of 5.2 kJ help engineers size transformers and ensure stable protection performance. Warranty terms and Eaton support further de-risk deployments in critical facilities, while the device’s compact footprint supports dense panel layouts.
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FAQs
The EBR-3Z-2B0IB1-A uses projection-panel mounting with a common bezel, simplifying retrofit into existing cabinets. It supports RS485 or RJ45 communications for MODBUS/DNP3, and requires connection to 5 A AC/DC contact circuits. Plan space for the 13.64 in width, 8.62 in height, and 7.49 in depth; ensure adequate clearance for wiring and service access. Burden is rated at 10 W / 17 VA, so wire sizing and breaker coordination should reflect this load.
Key performance indicators include 50/60 Hz frequency rating, 5 A contact rating on AC/DC circuits, and energy absorption up to 5.2 kJ. The device provides high-impedance differential protection to minimize misoperation during external faults, with a burden of 10 W / 17 VA to guide panel power budgeting. The unit is designed for operation from -20°C to 60°C, supporting reliable performance in typical industrial environments.
Ideal for protecting busbars in substations, switchgear, and large industrial power distribution networks. Its Modbus/DNP3 communications enable integration with existing SCADA and monitoring systems, supporting remote diagnostics and coordinated protection schemes across feeders. Suitable for facilities requiring reliable differential protection, fast fault isolation, and robust operation in moderate to harsh environments.
The product summary lists compliance as 'Contact Manufacturer,' so verify specific certifications with Eaton for your site. Common regulatory expectations in industrial environments include CE marking and safety qualifications; confirm SIL integrity and any IP enclosure ratings with the vendor to ensure alignment with your installation standards and regulatory requirements.
Expect reduced downtime due to improved protection selectivity and fewer nuisance trips, translating to higher asset uptime. The unit’s conformal coating, projection mounting, and common bezel support easier maintenance and faster upgrades, while the 1-year warranty (or 18 months from shipment) provides risk mitigation. The 5 A contact rating, 50/60 Hz operation, and 10 W / 17 VA burden help optimize switchgear performance and lifecycle costs.