Eaton EBR-3Z-2B0TB1-B Bus Differential Relay - High Impedance
Part Number: EBR-3Z-2B0TB1-B
Quick Summary
The Eaton Bus differential relay protects switchgear busbars by detecting differential faults and isolating them quickly. Without precise differential protection, nuisance tripping or unisolated faults risk unscheduled downtime. Certification and compliance considerations in procurement include CE marking for electrical safety, IP ratings for enclosure protection, and SIL considerations in critical protection schemes. The device prioritizes interoperability with modern protection networks through 61850/MDBS/DNP3, while conformal coating and rugged architecture support reliable operation in demanding environments. This combination delivers improved safety, reduced maintenance, and faster return on investment for industrial power systems.
Product Information
Extended Description
EBR-3Z-2B0TB1-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), Conformal Coating, Projection Mount, 10.4kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0TB1-B
UPC
786679194973
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
High impedance bus differential protection delivers robust fault discrimination, reducing nuisance trips and extending equipment life in demanding industrial settings. The EBR-3Z-2B0TB1-B supports 61850/MDBS/DNP3 communications over RS485 RJ45, enabling seamless integration with modern protection architectures and substation automation. Projection panel mounting simplifies installation in existing switchgear, while the 10 W / 17 VA burden keeps power budgets predictable and minimizes wiring overhead. A 5 A contact rating provides flexible signaling to trip circuits without overloading control logic, and the -20 to 60°C operating window plus conformal coating ensure reliability in harsh environments. Compatibility with the EBR-Z High Impedance Module helps optimize protection schemes and reduces total cost of ownership for Eaton-based protection ecosystems. Overall, these features translate to shorter commissioning times, lower maintenance costs, and improved system availability for critical electrical networks.
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FAQs
Install the Eaton bus differential relay using projection panel mounting inside a compliant enclosure. Connect the RS485 RJ45 to the 61850/MDBS/DNP3 network and wire the protected bus path per the Eaton specification. Verify 50/60 Hz operation and the 5 A contact rating during commissioning, then perform standard trip tests. Confirm conformal coating integrity and secure mounting to withstand industrial environments.
Yes. The EBR-3Z-2B0TB1-B supports 61850/MDBS/DNP3 communications via RS485 RJ45, enabling interoperable data exchange within modern protection schemes. This compatibility simplifies integration with Eaton’s EBR-Z high impedance module and common bezel architecture, reducing wiring complexity and enabling faster deployment in retrofit and new installations.
Key specifications include a 50/60 Hz frequency rating, a 5 A ac/dc contact rating, a burden of 10 W / 17 VA, and an operating temperature range of -20 to 60°C. Dimensions are 7.49 in depth, 8.62 in height, and 13.64 in width, with a weight of 12.7 lb. The unit uses conformal coating for reliability in harsh environments.
The relay is designed for industrial protection schemes with projection panel mounting and a rugged enclosure. It supports a wide operating temperature range (-20°C to 60°C), conformal coating for humidity and corrosion resistance, and RS485 communications for integration with 61850/MDBS/DNP3 networks. Its robust construction and moderate weight enable dependable field performance in switchgear assemblies.
Warranty details follow Eaton’s policy: one year from the date of installation or eighteen months from shipment, whichever occurs first. This coverage typically includes manufacturing defects and materials. For service options beyond warranty, consult Eaton support or your authorized distributor to discuss replacement, repair, or replacement pricing and lead times.