Eaton EBR-3Z-2B0TB0-A Bus Differential Relay - High Impedance

Part Number: EBR-3Z-2B0TB0-A
Manufacturer
Eaton
Part number
EBR-3Z-2B0TB0-A

Quick Summary

The Eaton bus differential relay protects high‑power switchgear by detecting inter‑bus faults. Engineers often battle nuisance trips and downtime when fault signals are misinterpreted. Regionally, compliance often includes CE safety marks and robust IP-rated enclosures, with SIL‑based protection guiding high‑reliability applications. The 61850/MDBS/DNP3 communications, conformal coating, and standard mounting streamline integration, delivering fast protection with consistent performance. This combination reduces maintenance costs while improving fault isolation across feeders in industrial facilities. With RS485 RJ45 for networked control and a compact footprint, it enables scalable protection in modern power distributions. Designed for field reliability, it supports quick diagnostics and straightforward installation.

Product Information

Extended Description

EBR-3Z-2B0TB0-A 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), Conformal Coating, Standard Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0TB0-A
UPC
786679196137
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 bus differential protection reduces nuisance trips by accurately discriminating true inter-bus faults amid normal load currents and circulating currents. Business Impact: This precise discrimination translates into fewer interruptions, shorter outages, and lower maintenance costs across critical feeders. Application: It is well suited for multi-bus switchgear installations in large industrial facilities where uninterrupted service is essential. Feature: The device employs a 5 A contact rating to ensure reliable signaling for protective relays and control circuits under fault conditions. Business Impact: This capability preserves control integrity, reduces contact wear, and minimizes the risk of nuisance alarms that drain IT and maintenance resources. Application: It integrates smoothly with standard control panels and Eaton protection schemes, enabling rapid deployment during retrofit projects and new builds. Feature: 61850/MDBS/DNP3 communications over RS485 RJ45 enable integration with modern protection, automation, and substation management systems. Business Impact: Operators gain real-time visibility, faster fault diagnosis, and streamlined configurations that shorten commissioning times. Application: Particularly beneficial in IEC 61850 based architectures and MDBS-enabled facilities seeking unified protection and monitoring. Feature: Conformal coating and rugged enclosure readiness enhance durability, helping the relay withstand moisture, dust, and chemical exposure in harsh environments. Business Impact: This resilience increases MTBF and reduces service calls, delivering lower life-cycle costs and higher equipment availability. Application: Ideal for electrical rooms, outdoor cabinets, and retrofit projects where long-term reliability is non‑negotiable. Feature: Standard mounting with space-efficient dimensions and a 10 W / 17 VA burden minimizes cabinet footprint. Business Impact: Reduces panel complexity and enables scalable protection without compromising performance. Application: Quick field deployment in existing panels with RS485 monitoring simplifies commissioning. Feature: Operating temperature range from −20°C to 60°C ensures reliable protection across diverse industrial climates and indoor/outdoor installations. Business Impact: Maintains protection accuracy under temperature swings, reducing recalibration needs and unplanned downtime. Application: Essential for manufacturing floors, data centers, and utility rooms where environmental conditions vary.

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FAQs

The relay uses standard mounting with a footprint of 13.64 in in width, 8.62 in in height, and 7.49 in in depth. It supports RS485 RJ45 for 61850/MDBS/DNP3 communication and includes conformal coating for durability. During installation, verify panel space, cable routing, and enclosure ratings, and ensure wiring complies with local electrical codes.
Key specs include a 5 A AC/DC contact rating, a burden of 10 W / 17 VA, and a frequency rating of 50/60 Hz. The device uses a standard mounting approach and operates from −20°C to 60°C, ensuring stable performance across typical industrial environments. These specs support reliable signaling for protection schemes.
Yes. The EBR-3Z-2B0TB0-A is designed for high-impedance bus differential protection in multi-bus switchgear and feeder configurations, providing precise fault discrimination that reduces misoperation in complex bus arrangements. It integrates with existing Eaton protection architectures for streamlined deployment and consistent protection coverage.
Compliance details are specified by the manufacturer; typical industrial protection devices reference CE safety considerations and IP-rated enclosure standards when installed in compliant cabinets. For exact region-specific approvals, consult Eaton's datasheets or contact a representative, as installation context determines applicable certifications and installation guidance.
Warranty is governed by Eaton’s policy: 1 year from installation or 18 months from shipment, whichever occurs first. ROI typically comes from reduced downtime and fewer nuisance trips due to precise fault detection. Maintenance recommendations include periodic diagnostics, enclosure checks, and confirming communications integrity via 61850/MDBS/DNP3 networks.