Eaton EBR-3Z-2B0BB1-B Bus differential relay - Modbus RTU
Part Number: EBR-3Z-2B0BB1-B
Quick Summary
The Eaton Bus differential relay is a protective device that monitors feeder currents to detect faults and protect switchgear. Nuisance trips and limited remote visibility can disrupt uptime and complicate maintenance planning. Certification data, including CE, SIL, or IP ratings, are not listed in the provided data; confirm with Eaton for applicable approvals. With Modbus RTU plus DNP3.0 RTU communications and conformal coated circuit boards, it integrates smoothly with modern protection schemes and SCADA. Its broad voltage range and projection panel mounting design deliver reliable feeder protection across mixed industrial environments, helping you reduce downtime and improve asset visibility.
Product Information
Extended Description
EBR-3Z-2B0BB1-B Eaton: Eaton, Bus differential relay, EBR-3000, 40-250 Vac, 19-300 Vdc, Bus relay, Modbus RTU + DNP3.0 RTU, 40-250 Vac, 19-300 Vdc, 8, 6,Feeder19-300Vdc, 40-250Vac, 10 W / 17 VA, 5 A ac / dc, 50/60 Hz, Projection panel mount, -20° to 60°C
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0BB1-B
UPC
786679193884
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
Modbus RTU + DNP3.0 RTU (RS485 / terminals)
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 supply range compatibility enables operation across 19-300 VDC and 40-250 VAC, providing flexibility for equipment powered from multiple sources and reducing the need for additional power conversion equipment. This directly lowers capital costs while improving protection reliability in mixed-plant environments. The device supports eight digital inputs and six digital outputs, enabling richer control logic and more precise tripping coordination, which translates to fewer false trips and faster isolation of faults in complex feeder networks. With a 5 A contact rating, the relay can reliably drive protection actuators and alarm relays without overspecifying components, delivering safer, higher-integrity switching in substations and industrial facilities. Modbus RTU and DNP3.0 RTU communications enable seamless integration with SCADA, EMS, and protective relays, reducing engineering effort and improving asset visibility across distributed systems. The projection panel mounting and removable terminals simplify installation, commissioning, and field maintenance, accelerating retrofit projects while preserving service continuity. Conformal coated circuit boards enhance reliability in humid or corrosive environments, extending service life in harsh industrial settings and minimizing maintenance costs over the equipment lifecycle. Designed for 50/60 Hz operation, this relay aligns with global utility standards, supporting centralized monitoring and consistent protection strategies across international sites. Overall, the EBR-3Z-2B0BB1-B combines protection performance with installation practicality, delivering measurable improvement in uptime, safety, and return on investment for feeder protection schemes.
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FAQs
The EBR-3Z-2B0BB1-B is designed for projection panel mounting with removable terminals, simplifying retrofit and new installs. It supports a broad voltage range (19-300 Vdc, 40-250 Vac) and provides eight digital inputs with six digital outputs, enabling straightforward integration into existing panel layouts while preserving protection coordination and ease of service.
Key specs include a 5 A contact rating for reliable switching, 50/60 Hz operation, and a dual power input range of 19-300 Vdc / 40-250 Vac. It features eight digital inputs, six digital outputs, Modbus RTU and DNP3.0 RTU communications, and conformal coated boards to improve reliability in harsh environments.
Yes, the device is engineered for feeder protection applications in switchgear and substations. It supports robust protection logic, 8 DI / 6 DO, and dual communications for SCADA integration, enabling fast fault isolation and improved visibility across distributed feeders.
The provided data does not list explicit certifications such as CE, SIL, or IP. For regulatory compliance, verify with Eaton directly or consult the product datasheet. This ensures you meet site-specific safety and reliability requirements before procurement.
Expect reduced nuisance trips and improved protection coordination, contributing to higher uptime and lower maintenance costs. The device’s conformal coating and panel-mount design reduce field exposure and installation time, while Modbus/DNP3.0 interfaces shorten commissioning cycles and enhance remote monitoring capabilities for ongoing operational ROI.