Eaton EBR-3Z-2B0HB1-A Bus differential relay - 61850/MODBUS/DNP3 RJ45
Part Number: EBR-3Z-2B0HB1-A
Quick Summary
Eaton bus differential relay is a protection device that detects unequal currents in a bus to prevent cascading faults in power systems. This solution helps engineers avoid nuisance trips and slow fault clearance that can disrupt critical processes. While this model relies on a high impedance protection scheme and modern communications, public compliance details are listed as ‘Contact Manufacturer’—verify CE, SIL, and IP ratings with Eaton. The unit also supports 61850, MODBUS, and DNP3 via RJ45, enabling seamless SCADA integration, and it features conformal coating for harsh environments, projection panel mounting, and robust 5.2 kJ protection energy to safeguard assets and uptime.
Product Information
Extended Description
EBR-3Z-2B0HB1-A Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, 61850/MODBUS/DNP3 (RJ45), Conformal Coating, Projection Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0HB1-A
UPC
786679193914
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 → Business Impact → Application: The EBR-3Z-2B0HB1-A provides high impedance bus differential protection with a 5 A ac/dc contact rating, reducing nuisance tripping and accelerating fault isolation in medium-to-large switchgear assemblies. This translates to improved reliability, lower maintenance costs, and minimized downtime for industrial facilities that depend on continuous power. In practice, use it on bus sections feeding critical loads to ensure fast, selective clearance without compromising stability, especially in networks employing 61850/MODBUS/DNP3 communications through RJ45 for centralized control. Feature → Business Impact → Application: Projection panel mounting and conformal-coated construction offer rugged installation in harsh environments, including outdoor substations. The result is extended equipment life and fewer field failures, enabling long-term capital planning and lower total cost of ownership for electrical protection systems. Feature → Business Impact → Application: A 50/60 Hz frequency rating and a 10 W / 17 VA burden support reliable signaling with manageable power draw, helping protect devices upstream and downstream while simplifying panel design and wiring. Feature → Business Impact → Application: With a 7.49 in deep, 8.62 in height, and 13.64 in width footprint and a 12.7 lb weight, the unit integrates into standard protection panels without requiring structural changes, supporting faster deployment and scalable protection schemes. Feature → Business Impact → Application: The 5.2 kJ energy rating enhances surge resilience during fault events, contributing to higher system availability and reduced risk of secondary damage in electrical networks. Warranty and support: The Eaton policy offers one-year coverage from installation or eighteen months from shipment, delivering confidence for project ROI and ongoing maintenance planning.
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FAQs
Installation involves mounting the relay on a projection panel, wiring according to the bus differential protection scheme, and connecting RJ45 communication lines for 61850/MODBUS/DNP3. Ensure operating temperature stays between -20°C and 60°C, respect the 10 W / 17 VA burden, and secure the device to minimize vibration. Verify mounting clearance and follow the supplier’s wiring diagram for proper commissioning.
Key specs include a 50/60 Hz frequency rating, a 5 A ac/dc contact rating, and a 10 W / 17 VA burden. The product supports high impedance bus differential protection with a conformal-coated chassis for reliability in harsh environments. Installation uses projection panel mounting, and the unit weighs 12.7 lb with overall dimensions of 7.49 in depth, 8.62 in height, and 13.64 in width.
Yes, the EBR-3Z-2B0HB1-A is designed for bus differential protection in substation environments. It uses projection panel mounting for secure installation and offers conformal coating for exposure to dust and moisture. The unit integrates with 61850/MODBUS/DNP3 networks via RJ45, enabling straightforward integration with substation protection schemes and SCADA systems.
Public datasheets list compliances as Contact Manufacturer, so verify CE, SIL, and IP ratings directly with Eaton. This ensures the device meets your facility’s regulatory requirements and safety standards before field deployment. Always check for any updates to warranty terms and installation guidelines provided by Eaton at the time of purchase.
The relay provides robust protection with a 5 A contact rating, 5.2 kJ protection energy, and a design suitable for long service life in challenging environments. Coupled with a one-year warranty (or 18 months from shipment) and minimal nuisance trips due to high impedance protection, this improves uptime, reduces maintenance calls, and supports favorable return-on-investment for critical protection schemes.