Eaton EBR-3Z-2B0LA1-A Bus Differential Relay - 5.2kJ
Part Number: EBR-3Z-2B0LA1-A
Quick Summary
Eaton Bus differential relay provides fast, selective protection for industrial power buses. Engineers often struggle with nuisance trips and miscoordination when protection schemes lag behind changing load profiles. Current compliance status lists Compliances as Contact Manufacturer; confirm with Eaton to verify required certifications such as SIL, CE, or IP ratings. With MODBUS/DNP3 communications, projection-panel mounting, and a 5.2 kJ energy rating, the EBR-3Z-2B0LA1-A integrates with modern automation while simplifying installation. This combination supports faster fault isolation, reducing downtime and enabling more predictable maintenance windows. In practice, it helps teams achieve better protection coordination without redesigning existing panel architectures.
Product Information
Extended Description
EBR-3Z-2B0LA1-A Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, MODBUS/DNP3 (FO LC), Projection Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0LA1-A
UPC
786679195888
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
Feature: High-impedance protection for bus bars → Benefit: Improves selectivity and reduces nuisance trips, enabling faster fault isolation in large distributed power systems. Application: Ideal for medium-to-large industrial bus configurations where precision matters and uptime is critical. Feature: MODBUS/DNP3 communications → Benefit: Seamless SCADA integration and remote fault monitoring, lowering on-site diagnostic time. Application: Panel-mounted protection in facilities with centralized monitoring. Feature: Projection panel mounting → Benefit: Space-efficient installation in tight electrical rooms, reducing cabinet depth and simplifying retrofits. Application: Retrofit projects and new builds in restricted spaces. Feature: 5 A contact rating and 50/60 Hz support → Benefit: Reliable actuation with compatibility to standard electrical networks, minimizing contact wear and maintenance cycles. Application: General protection circuits across diverse manufacturing environments. Feature: Energy handling capability 5.2 kJ → Benefit: Handles fault energy without compromising protection or device integrity, lowering risk to breakers and transformers. Application: High-energy fault scenarios in complex bus systems. Feature: 7.49 in x 13.64 in x 8.62 in footprint and 12.7 lb weight → Benefit: Manageable integration in standard panels, enabling straightforward upgrades. Application: Retrofit projects where space planning matters.
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FAQs
The EBR-3Z-2B0LA1-A uses a projection panel mounting, fits standard electrical enclosures, and supports 50/60 Hz networks. It pairs with common bus configurations and cabinets, enabling straightforward retrofits. Ensure compatible wiring for a 5 A contact rating and verify space for its 13.64 in width and 8.62 in height. The device’s communication options, MODBUS/DNP3, simplify integration with existing SCADA and protection schemes.
Key specs include 50/60 Hz operation, 5 A ac/dc contact rating, a 10 W/17 VA burden, and a 5.2 kJ energy handling rating. The device weighs 12.7 lb and has a footprint of 7.49 in depth, 8.62 in height, and 13.64 in width. Confirm these align with your panel design, bus rating, and fault-energy requirements before purchase.
This relay excels in industrial power distribution where precise bus differential protection is critical, such as manufacturing plants, data centers, and process facilities. It’s particularly valuable when SCADA integration is needed (MODBUS/DNP3) and space constraints require a compact, projection-mount solution. It also suits environments demanding reliable operation across 50/60 Hz with robust fault-energy handling.
The datasheet lists compliances as 'Contact Manufacturer', so confirm with Eaton for the exact certifications applicable to your project. Typical programs to verify include SIL, CE, and IP-related ratings, depending on your regional requirements and installation environment. Always request current certification documentation from Eaton prior to procurement.
Regular inspection of the protection circuits, contact wear monitoring, and periodic functional tests are recommended. The high-impedance protection approach reduces nuisance trips, improves selectivity, and shortens downtime during fault events, translating to lower maintenance costs and higher system uptime. The MODBUS/DNP3 interface also lowers monitoring and diagnostic labor by enabling remote status checks.