Eaton EBR-3Z-2B0BB0-B Bus differential relay - Modbus RTU
Part Number: EBR-3Z-2B0BB0-B
Quick Summary
Eaton bus differential relay protects feeders by detecting current imbalances and isolating faults in electrical distribution networks. Engineers often face nuisance trips and slow fault isolation when feeder currents are uneven across panels. Compliance details are manufacturer-defined; confirm CE, SIL, or IP ratings with Eaton for your installation. With Modbus RTU plus DNP3.0 RTU interfaces and a robust power range of 19-300 VDC / 40-250 VAC, the EBR-3Z-2B0BB0-B supports scalable, secure integration. The eight digital inputs and six outputs, combined with a standard mounting, enable reliable protection coordination across industrial sites, reducing downtime and lifecycle costs.
Product Information
Extended Description
EBR-3Z-2B0BB0-B Eaton: Eaton, Bus differential relay, EBR-3000, 40-250 Vac, 19-300 Vdc, Bus relay, Modbus RTU + DNP3.0 RTU (RS485 / terminals), 40-250 Vac, 19-300 Vdc, Feeder19-300Vdc, 40-250Vac, 10 W / 17 VA, 5 A ac / dc, 50/60 Hz, Standard mount, -20° to 60°C
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0BB0-B
UPC
786679193822
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
Standard
Terminals
Removable
Contact Rating
5 A ac / dc
Operating temperature
-20° to 60°C
Voltage sensing inputs
0
Wide power range and dual supply capability reduce inventory and simplify installation, enabling feeder protection in mixed-voltage environments. This translates to faster commissioning, lower wiring complexity, and improved system availability. The eight digital inputs and six outputs provide local signaling and interlock options, supporting more flexible control logic and reduced external hardware. In practice, you can implement zone selective interlocking and remote fault signaling over RS485 networks to minimize outage duration. Modbus RTU plus DNP3.0 RTU enables seamless SCADA integration, improving alarm management and data visibility for maintenance teams. A low burden of 10 W / 17 VA and a compact standard-mount enclosure simplify heat management and retrofit projects. Built for harsh environments (-20 to 60 C) and backed by standard Eaton support, this relay delivers reliable, scalable protection for feeders, data centers, and manufacturing facilities.
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FAQs
To install, mount the relay on a standard DIN rail or panel, connect power in the 19-300 VDC or 40-250 VAC range, wire eight digital inputs and six outputs for local signaling, and link the RS485 Modbus RTU path to your SCADA. Ensure removable terminals are used for easy field wiring and verify operating temperature (-20 to 60 C) in your environment.
Key specs include a 5 A contact rating, 10 W / 17 VA burden, power supply range of 19-300 VDC or 40-250 VAC, 50/60 Hz, eight digital inputs and six outputs, and a standard mounting method. The device is designed for feeder protection and supports conformal coated circuit boards for harsh environments.
Yes, the EBR-3Z-2B0BB0-B supports Modbus RTU and DNP3.0 RTU over RS485. Use the removable terminals for reliable field connections and connect to your SCADA or protection relay networks. Ensure proper addressing and baud rate settings to enable seamless data exchange and alarm signaling.
This bus differential relay is well suited for feeder protection in industrial facilities, data centers, and utility distribution panels. Its eight inputs and six outputs support local interlock logic and signaling, while the standard mount and wide voltage range simplify deployment across mixed-voltage feeders.
The product is covered by Eaton’s policy: one year from installation or eighteen months from shipment, whichever occurs first. Warranty terms can be complemented by Eaton service offerings. For regulatory compliance and installation support, contact Eaton to verify CE, SIL, or IP rating status for your specific installation.