Eaton EBR-3Z-2B0TB1-A Bus Differential Relay - 5.2kJ
Part Number: EBR-3Z-2B0TB1-A
Quick Summary
The Eaton bus differential relay protects large feeder buses by quickly detecting internal faults. Operators often contend with nuisance trips and miscoordination in high impedance protection schemes. In the market, buyers look for robustness, with references to CE, SIL, and IP ratings, even when specific compliance is noted as manufacturer-driven. This device combines high impedance differential sensing with 61850/MDBS/DNP3 communications and an RS485 RJ45 interface, plus a conformal coating and projection panel mounting for demanding environments. The result is a dependable protection solution that reduces downtime, simplifies installation, and aligns with maintenance programs, delivering clear business value for engineering teams and procurement alike.
Product Information
Extended Description
EBR-3Z-2B0TB1-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, Projection Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0TB1-A
UPC
786679194966
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
Power Systems Experience Center Tour – Metering Focus
Eaton Specification Sheet - EBR-3Z-2B0TB1-A
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: High impedance differential protection with a 5.2kJ energy rating. Business Impact: Improves selective fault detection and minimizes nuisance trips, boosting system reliability. Application: Large industrial feeder buses where fast, precise protection is critical. Feature: Standards-based communications via 61850, MDBS, and DNP3 with an RS485 RJ45 interface. Business Impact: Enables seamless integration with modern protection schemes and remote diagnostics, reducing engineering effort and field errors. Application: Retrofit projects and new builds that require interoperable protection networks. Feature: Conformal coating and projection panel mounting. Business Impact: Enhances durability in challenging environments and simplifies field installation, lowering commissioning time and maintenance costs. Application: Harsh industrial enclosures and control rooms where exposure to moisture or vibration is a concern. Feature: Clear electrical specifications including 50/60 Hz operation, 5 A contact rating, and 10 W / 17 VA burden. Business Impact: Ensures compatibility with standard feeder components and predictable control performance, supporting reliable protection coordination. Application: Routine protection upgrades and new installations in plant power systems. Feature: Comprehensive physical dimensions and warranty details. Business Impact: Facilitates accurate space planning and lifecycle budgeting while providing post-sale support through Eaton’s policy. Application: Panel design and procurement workflows for ongoing facility reliability programs.
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FAQs
Installation starts with verifying panel space and mounting the unit on the projection panel as specified. Ensure the RS485 RJ45 interface is accessible for communications, and connect the 5 A contact outputs to the protected circuit. After mounting, complete wiring to the protection scheme, confirm the conformal coating seals, and perform a functional check to verify proper fault detection and rapid isolation.
Core specs include 50/60 Hz frequency rating, 5 A AC/DC contact rating, and a burden of 10 W / 17 VA. The unit supports a -20° to 60°C operating range, projection panel mounting, and a 7.49 in x 8.62 in x 13.64 in form factor with a weight of 12.7 lb. These figures drive compatibility with typical distribution panels and wiring schemes.
Yes. The EBR-3Z-2B0TB1-A is designed for high impedance bus differential protection, offering precise fault detection and fast isolation. It also supports modern communication protocols (61850, MDBS, DNP3) over RS485 RJ45, enabling integration into contemporary protection architectures while preserving reliability in manufacturing floors, data centers, and utility-grade facilities.
Compliance is listed as Contact Manufacturer, so verify with Eaton for CE, SIL, IP ratings, and any industry-specific certifications relevant to your facility. When planning procurement, request the datasheet and warranty documentation to confirm regulatory alignment and maintenance requirements before deployment.
The device reduces downtime through selective high impedance protection and minimizes nuisance trips. Its conformal coating and projection panel mounting simplify installation and durability, lowering maintenance frequency. A 1 year warranty (or 18 months from shipment) provides risk mitigation, while standard communication interfaces enable remote diagnostics and easier lifecycle management, improving overall ROI for protection upgrades.