Eaton Bus differential relay EBR-3Z-2B0TA1-B - 61850
Part Number: EBR-3Z-2B0TA1-B
Quick Summary
The Eaton Bus differential relay is a fast protector for shared bus systems in switchgear and panels. Engineers often face nuisance trips or protection gaps during load changes, which can impact uptime and coordination across plants. While the data here doesn't list specific certifications, industry expectations typically include CE marking, IEC-based protection standards, and SIL readiness—verification with Eaton is advised for your exact project. The device also leverages 61850/MDBS/DNP3 communications and a projection-mount design to streamline integration, offering reliability and operational efficiency for modern electrical protection schemes.
Product Information
Extended Description
EBR-3Z-2B0TA1-B Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, 61850/MDBS/DNP3 (RS485 RJ45), Projection Mount, 10.4kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0TA1-B
UPC
786679196113
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: High-impedance behavior provides selective fault detection, reducing unwanted trips and enabling stable coordination across feeder protections in complex bus configurations. This translates to improved system availability and lower maintenance costs in manufacturing plants and data centers. Application: suitable for shared bus arrangements in medium-voltage switchgear with precise protection needs. Feature → Business Impact → Application: Common bezel with EBR-Z High Impedance Module simplifies installation and future retrofits, minimizing field labor and retrofit downtime. Application: retrofit projects or modular switchgear upgrades where fast protection integration matters. Feature → Business Impact → Application: 61850/MDBS/DNP3 (RS485 RJ45) communications enable substation automation and remote monitoring, reducing on-site maintenance trips and accelerating fault analytics. Application: integration with SCADA/EMS workflows for real-time protection coordination. Feature → Business Impact → Application: Projection panel mounting supports clean, space-efficient installations in crowded cabinets, improving serviceability and air flow. Application: compact control rooms and narrow panel layouts. Feature → Business Impact → Application: Burden of 10 W / 17 VA and 5 A contact rating deliver predictable power consumption and robust switching under normal and fault conditions. Application: reliable actuation for fast clearance without overloading control circuits. Feature → Business Impact → Application: Operating temperature range from -20° to 60°C ensures performance in harsh industrial environments. Application: factory floors, outdoor cabinets, and enclosures with wide temperature variations.
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FAQs
Installation involves mounting the relay on a projection panel, establishing RS485 RJ45 communications for 61850/MDBS/DNP3, and wiring the 5 A contacts to the protected circuits. Follow the device’s manual for terminal labeling, safety clearances, and coordination with adjacent protection devices to ensure proper differential protection and quick fault clearance.
Key specs include 50/60 Hz operation, 5 A contact rating, and a burden of 10 W / 17 VA. The product measures 7.49 in depth, 8.62 in height, and 13.64 in width with a weight of 12.7 lb. Verify these against your bus configuration, enclosure space, and control circuit compatibility.
Yes. The EBR-3Z-2B0TA1-B is designed for high-impedance differential protection within common bus schemes, enabling selective tripping and improved coordination between feeders. This makes it well-suited for complex switchgear where nuisance trips must be minimized without compromising protection.
The provided data does not list specific certifications; typical expectations include CE marking and IEC-based protection standards, with potential SIL readiness depending on the system. Confirm the exact certification status and documentation with Eaton for your jurisdiction and project requirements before procurement.
Expect a standard warranty of one year from installation or eighteen months from shipment. ROI benefits come from reduced nuisance trips, faster fault clearance, easier installation via projection mounting, and seamless integration with automation systems through 61850/MDBS/DNP3, which reduces field service trips and downtime.