Eaton EBR-3Z-2B0HB0-B Bus differential relay - 61850
Part Number: EBR-3Z-2B0HB0-B
Quick Summary
The Eaton Bus differential relay is designed to protect bus bars by quickly detecting internal faults and isolating them to prevent cascading outages across medium and large electrical distribution systems. Engineers often struggle with nuisance trips and slow fault clearance that raise maintenance costs; this device targets those pain points by delivering high impedance protection and robust communication options. It supports 50/60 Hz power systems and a 5 A contact rating, with a conformal coating for rugged environments and a standard mount for straightforward installation. While exact certifications aren’t listed publicly, integration with 61850, MODBUS, and DNP3 enables seamless substation automation. In applications, it translates protection into reliable uptime and predictable maintenance budgeting.
Product Information
Extended Description
EBR-3Z-2B0HB0-B 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, Standard Mount, 10.4kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0HB0-B
UPC
786679193907
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
Standard
Contact Rating
5 A ac / dc
Operating temperature
-20° to 60°C
Feature: High impedance protection for bus differential faults → Business Impact: Faster, more selective fault clearance reduces arc flash exposure and equipment wear, lowering maintenance costs. Application: Ideal for medium and large switchgear in substations and industrial plants. Feature: 61850/MODBUS/DNP3 with RJ45 interface → Business Impact: Enables real-time monitoring, remote diagnostics, and integrated automation, improving operator visibility and reducing onsite service time. Application: Substation automation and data center power management. Feature: Conformal coating and rugged construction → Business Impact: Enhanced reliability in harsh environments, extending service intervals and lowering spare parts spend. Application: Outdoor or dusty industrial facilities. Feature: Standard mounting and compact footprint (7.49 in x 8.62 in x 13.64 in) with 12.7 lb weight → Business Impact: Simplified retrofits and faster installation, reducing commissioning time and labor costs. Application: Retrofit projects and new installations in existing switchgear. Feature: 5 A contact rating with 10 W / 17 VA burden and 10.4 kJ energy handling → Business Impact: Robust switching performance with predictable energy handling minimizes nuisance trips and extends relay life. Application: Protection schemes requiring reliable operation under fault conditions. Feature: 50/60 Hz operation and standard electrical specs → Business Impact: Broad compatibility with global grids and industrial systems, enabling consistent protection coordination. Application: Global manufacturing facilities and mixed-energy sites.
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FAQs
The EBR-3Z-2B0HB0-B is designed for straightforward installation with standard mounting and an RJ45 interface supporting 61850, MODBUS, and DNP3. It fits common bus differential protection schemes used in medium and large switchgear. Ensure proper CT connections, verify voltage and current regime compatibility, and coordinate with existing relays to avoid misoperation during fault events.
Key specs include a 50/60 Hz frequency rating, 5 A contact rating (AC/DC), a burden of 10 W / 17 VA, and operating temperatures from -20 to 60°C. These values ensure reliable operation across typical industrial environments while enabling stable tripping thresholds and predictable coordination with upstream protection. The 10.4 kJ energy handling further supports fast and controlled fault energy dissipation.
Yes. The Eaton EBR-3Z-2B0HB0-B is designed for high impedance bus differential protection, offering rapid fault detection and isolation ideal for substations and data centers. Its conformal coating improves reliability in harsh environments, while the 61850/MODBUS/DNP3 interfaces support modern automation and remote monitoring essential in mission-critical facilities.
Public certification details are not listed in the provided data; the product specifies 61850/MODBUS/DNP3 communication capabilities and a conformal coating for rugged use. For CE, SIL, or IP ratings, contact Eaton or your distributor to obtain the latest official certification status and installation guidance.
Maintenance benefits come from faster fault clearance, reduced nuisance trips, and improved protection coordination, which translate to lower outage costs and safer operation. The relay’s robust construction, standard mounting, and widely supported communication protocols streamline commissioning and future upgrades, delivering a favorable return on investment through equipment uptime and reduced engineering effort.