Eaton Bus differential relay EBR-3Z-2B0EB1-A - 40-250 Vac
Part Number: EBR-3Z-2B0EB1-A
Quick Summary
Eaton Bus differential relay EBR-3Z-2B0EB1-A provides fast, reliable feeder protection for electrical networks. In complex power systems, mis-coordination and nuisance trips can cause downtime and drive maintenance costs. Industry-standard protections often rely on CE compliance, SIL readiness, and robust IP-rated hardware; verify exact approvals with Eaton for your installation. Engineering teams benefit from its 8 digital inputs, 6 digital outputs, and a single current-sensing input that enable precise zone protection and fast fault isolation. Designed for harsh industrial environments, it operates from -20 to 60°C and uses conformal-coated circuit boards for added reliability. With projection-panel mounting and removable terminals, installation is quicker, and lifecycle costs are reduced for maintenance and upgrades.
Product Information
Extended Description
EBR-3Z-2B0EB1-A Eaton: Eaton, Bus differential relay, EBR-3000, 40-250 Vac, 19-300 Vdc, Bus relay, Profibus-DP (RS485 / D-SUB interface), 40-250 Vac, 19-300 Vdc, 8, 6,Feeder19-300Vdc, 40-250Vac, 10W/17VA, 5A ac / dc, 50/60 Hz, Projection panel mount, -20° to 60°C
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0EB1-A
UPC
786679194799
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
Application
Feeder
Type
Bus differential relay
Product Category
Bus relay
Analog inputs
0
Analog outputs
0
Base relay
EBR-3000
Burden
10 W / 17 VA
Conformal coating
Conformal Coated Circuit Boards
Communication
Profibus-DP (RS485 / D-SUB interface)
Current sensing inputs
1
Digital inputs
8
Digital outputs
6
Zone selective interlocking
0
Number of inputs
8
Number of outputs
6
Power supply range
19-300Vdc, 40-250Vac
Power consumption
40-250 Vac, 19-300 Vdc
Power supply
40-250 Vac, 19-300 Vdc
Frequency rating
50/60 Hz
Mounting method
Projection panel
Terminals
Removable
Contact Rating
5 A ac / dc
Operating temperature
-20° to 60°C
Voltage sensing inputs
0
Power Systems Experience Center Tour – Metering Focus
Eaton Specification Sheet - EBR-3Z-2B0EB1-A
Selling Policy 25-000 - Distribution and Control Products and Services
Power supply range across 19-300 Vdc and 40-250 Vac provides voltage-flexible protection for feeders, reducing part variety and stocking costs. Business impact: simplified procurement and faster commissioning in mixed-voltage plants. Application: feeders operating from varying supply conditions in manufacturing facilities. The device offers 8 digital inputs, 6 digital outputs, and 1 current-sensing input to support robust protection logic, faster fault isolation, and easier integration with feeder control schemes. Business impact: improved reliability, reduced nuisance trips, and clearer fault signaling. The Profibus-DP (RS485 / D-SUB) communication interface enables seamless PLC integration and remote supervision, lowering installation risk in automated lines. Business impact: better network visibility and shorter mean time to repair. Application: integration with existing automation networks across production lines. Projection-panel mounting, removable terminals, and conformal-coated boards simplify field wiring and serviceability. Business impact: faster installation, easier upgrades, and enhanced reliability in harsh environments. The unit’s low burden (10 W / 17 VA) minimizes energy draw in control cabinets, reducing total cost of ownership. Application: compact, efficient protection panels. The EBR-3000 base relay compatibility provides a scalable upgrade path for evolving protection schemes. Business impact: future-proofing and reduced equipment churn in asset-intensive facilities. Operating between -20°C and 60°C, with conformal coating and rugged construction, it withstands typical factory floors. Application: protection devices installed in challenging environments where moisture, dust, or temperature swings occur.
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FAQs
The device is designed for projection-panel mounting with removable terminals for quick wiring. Connect the 8 digital inputs, 6 digital outputs, and 1 current-sensing input to your feeder control scheme, and link the Profibus-DP interface to the PLC via RS485. Ensure the power supply range of 19-300 Vdc or 40-250 Vac is satisfied and verify clearance and mounting guidelines per the installation manual.
Key specs include a 5 A contact rating (AC/DC), 50/60 Hz operation, power supply range of 19-300 Vdc / 40-250 Vac, and a burden of 10 W / 17 VA. The unit supports eight digital inputs, six digital outputs, and one current-sensing input, enabling accurate feeder protection and fast fault isolation in mixed-voltage environments.
It is well-suited for feeder protection and bus-section protection in industrial plants, especially where mixed-voltage supplies exist. The Profibus-DP interface facilitates integration with PLCs and automation networks, while the projection-panel mounting and removable terminals streamline installation and service in control cabinets and switchgear assemblies.
Compliances are listed as manufacturer-verified; the data does not specify CE, SIL, or IP ratings for this exact model. When planning procurement, confirm model-specific approvals with Eaton to ensure regulatory and safety requirements are met for your facility and application.
Expect reduced downtime from fewer nuisance trips due to precise differential protection, simpler panel design with a single device for multiple voltages, and easier maintenance thanks to removable terminals and conformal coating. The EBR-3000 base-relay compatibility supports scalable protection upgrades, contributing to lower lifecycle costs and faster ROI in asset-intensive environments.