Eaton EBR-3Z-2B0CB1-B Bus differential relay - 10.4kJ
Part Number: EBR-3Z-2B0CB1-B
Quick Summary
The Eaton EBR-3Z-2B0CB1-B Bus differential relay is designed to provide high-impedance protection for bus bars in switchgear and substations. Field engineers often wrestle with nuisance trips and miscoordination across feeders, which can trigger outages and complicate maintenance. While this model's data sheet notes Compliances as 'Contact Manufacturer', buyers should verify critical certifications such as SIL, CE, and IP ratings with Eaton to ensure regulatory alignment. With Modbus/DNP3 communication over RJ45, conformal coating for harsh environments, and a projection-mount design, it enables reliable, scalable protection that integrates with existing control systems. These features together support safer operations, reduced downtime, and a clear path to achieving compliant, cost-effective protection programs.
Product Information
Extended Description
EBR-3Z-2B0CB1-B Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, MODBUS/DNP3 (RJ45), Conformal Coating, Projection Mount, 10.4kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0CB1-B
UPC
786679194614
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: High-impedance bus differential protection provides selective fault detection with fast clearing, reducing energy stress on feeders. Business Impact: Minimizes equipment wear and prevents unnecessary trips, lowering maintenance costs and outage durations. Application: Substation and large switchgear environments requiring precise bus protection. Feature: Conformal coating and wide operating temperature range (-20° to 60°C) improve reliability in harsh or outdoor environments. Business Impact: Extended uptime and lower environmental failure rates, enabling more consistent protection across rugged installations. Application: Outdoor substations, harsh industrial plants, and coastal facilities. Feature: Projection panel mounting simplifies installation and serviceability in confined spaces. Business Impact: Faster commissioning and easier field maintenance, reducing labor costs and downtime. Application: OEM panel builds and retrofit projects. Feature: MODBUS/DNP3 over RJ45 enables seamless integration with modern SCADA and automation systems. Business Impact: Real-time visibility and coordinated protection schemes, improving fault diagnosis and control. Application: Control rooms and remote monitoring across distributed networks. Feature: Burden of 10 W / 17 VA and 5 A contact rating support efficient, compatible interfacing with protection schemes and circuit interlocks. Business Impact: Lower power draw and straightforward integration with existing protection logic. Application: Distribution feeders and relay coordination tasks. Feature: 7.49 in depth, 8.62 in height, 13.64 in width, and 12.7 lb weight provide a robust, field-ready package with stable mechanical performance. Business Impact: Predictable enclosure fit and reliable field handling, reducing installation risk and rework. Application: Indoor/outdoor panels and retrofits requiring solid physical footprint.
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FAQs
Begin by confirming panel dimensions match the relay footprint (projection panel mounting). Mount the unit securely, route MODBUS/DNP3 RJ45 cables to the control system, and connect power and signaling per the installation guide. Verify the 50/60 Hz supply, confirm the 5 A contact output, and test coordination with adjacent protection devices to prevent misoperation.
The relay operates at 50/60 Hz, with a 5 A AC/DC contact rating and a burden of 10 W / 17 VA. It offers high-impedance bus differential protection with a 10.4 kJ energy rating. Additional specs include projection-panel mounting, conformal coating, and a temperature range of -20 to 60°C, suitable for demanding environments.
Yes. The EBR-3Z-2B0CB1-B is designed for high-impedance bus differential protection, delivering fast, selective fault clearing to protect bus bars in substations and large switchgear. Its rugged construction, coating, and wiring flexibility support reliable operation in demanding substation environments while enabling scalable protection schemes.
The data indicates Compliances: Contact Manufacturer. For industrial projects, verify certifications such as SIL, CE, and IP ratings directly with Eaton to ensure regulatory alignment and suitability for your regional requirements. Always reference the latest Eaton datasheet and warranty terms during procurement.
The relay reduces nuisance trips and improves protection coordination, which lowers downtime and maintenance costs. Its rugged design, conformal coating, and reliable Modbus/DNP3 integration support longer service life and easier diagnostics. The warranty offers coverage aligned with Eaton policies, contributing to total cost of ownership reductions over the asset lifecycle.