Eaton EBR-3Z-2B0FA1-B Bus Differential Relay - 10.4kJ High Impedance
Part Number: EBR-3Z-2B0FA1-B
Quick Summary
Eaton Bus differential relay protects feeders and transformers in industrial power systems, enabling quick fault detection and isolation. Operators often struggle with nuisance trips and slow fault clearance in bus-differential schemes, threatening uptime and maintenance costs. While certification specifics vary by region, bus differential protection commonly aligns with SIL, CE, and IP-rated standards—verify exact ratings with Eaton. Beyond safety, this solution supports remote monitoring via MODBUS/DNP3 and integrates with projection-mount cabinets to fit tight spaces, delivering reliability and cost efficiency. This module is well-suited for medium-to-large electrical networks in manufacturing, utilities, and data centers.
Product Information
Extended Description
EBR-3Z-2B0FA1-B 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, 10.4kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0FA1-B
UPC
786679194850
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: The Eaton EBR-3Z-2B0FA1-B delivers high impedance protection with a substantial 10.4 kJ energy capacity, enabling selective trips and reduced coordination errors. Business impact: lower fault-current miscoordination and fewer nuisance trips, which translates to improved uptime in critical manufacturing lines and data centers. Application: bus sections feeding large motors and transformers in industrial plants. MODBUS/DNP3 communications (FO ST): This relay supports modern SCADA integration and remote supervision. Business impact: streamlined asset monitoring, faster diagnostics, and reduced on-site maintenance costs. Application: distributed protection schemes where alarms and status are fed to centralized control rooms. Projection panel mounting and common bezel integration: Projection-mount design simplifies field installation and alignment, while sharing a bezel with the EBR-Z High Impedance Module. Business impact: faster deployment, reduced commissioning time, and easier retrofits in existing panels. Application: retrofit projects and new builds in electrical rooms with limited space. Compact footprint with robust electrical ratings: At 50/60 Hz operation and a 5 A contact rating (AC/DC), this relay fits standard control circuits and signaling paths. Business impact: compatibility with common protection schemes and reduced wiring complexity. Application: feeder protection and switchgear control circuits in industrial facilities. Mechanical and environmental suitability: 7.49 in long, 8.62 in high, 13.64 in wide, and 12.7 lb weight, designed for reliable operation from -20°C to 60°C. Business impact: dependable performance across diverse environments. Application: outdoor and indoor substations, manufacturing floors, and utility installations.
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FAQs
The EBR-3Z-2B0FA1-B uses a projection panel mounting method and shares a common bezel with the EBR-Z High Impedance Module, simplifying retrofits in standard enclosures and new installations. It supports 50/60 Hz operation and a 5 A contact rating, making it a good fit for feeder protection and control circuits in industrial facilities.
High impedance protection offers greater discrimination between true faults and minor disturbances, reducing nuisance trips. It enhances stability in networks with varied fault paths and limited CT accuracy, helping maintain reliability in complex bus configurations common in manufacturing plants and substations.
Yes. The EBR-3Z-2B0FA1-B supports MODBUS/DNP3 (FO ST) communications, enabling seamless integration with SCADA and EMS systems. This supports remote status monitoring, diagnostics, and faster fault analysis without on-site visits.
Typical applications include protection of bus bars feeding large feeders and transformers, substations, and motor-rich distribution networks. Its 10.4 kJ energy capacity and projection-mounted design suit retrofit projects and new builds where reliable differential protection and easy installation are priorities.
The relay aligns with Eaton's standard warranty policy: one year from installation or eighteen months from shipment, whichever comes first. This, combined with remote monitoring capabilities and durable construction, supports a lower total cost of ownership through reduced downtime and predictable maintenance planning.