Eaton EBR-3Z-2B0TA1-A Bus differential relay - High impedance
Part Number: EBR-3Z-2B0TA1-A
Quick Summary
Eaton Bus differential relay EBR-3Z-2B0TA1-A provides fast, high-impedance protection for feeders in switchgear and substations. Nuisance trips and slow fault isolation can disrupt uptime and safety. In industrial protection, certifications such as CE marking, SIL ratings for protective relays, and durable IP enclosure ratings are critical for compliance and reliability. This model’s 61850/MDBS/DNP3 communications, projection panel mount, and RS485 RJ45 interface support seamless integration and faster commissioning. Leveraging compatibility with Eaton protection ecosystem helps reduce lifecycle costs and improve protection coordination.
Product Information
Extended Description
EBR-3Z-2B0TA1-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), Projection Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0TA1-A
UPC
786679196076
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-2B0TA1-A
Selling Policy 25-000 - Distribution and Control Products and Services
The high-impedance design delivers selective differential protection with minimal trip propagation, reducing unnecessary outages and improving reliability for feeders in complex switchgear. In practice, this translates to shorter fault clearance times and safer, more available power delivery for critical processes, enabling engineers to meet tighter uptime targets. The unit’s projection panel mounting and common bezel simplify retrofits and new installations, cutting on-site time and engineering effort. The 61850/MDBS/DNP3 (RS485 RJ45) communications support accelerates data sharing with protection schemes and SCADA, improving visibility and coordination. With a 50/60 Hz rating, 5 A contact capability, 10 W/17 VA burden, and 5.2 kJ energy, the relay balances performance with thermal and energy efficiency for medium- to high-power feeders. Its compact footprint (7.49 in depth, 8.62 in height, 13.64 in width) fits tighter panels while maintaining robust protection. Early-life warranty coverage (one year from installation or eighteen months from shipment) adds cost predictability. Compatibility with Eaton’s protection ecosystem reduces long-term maintenance complexity and ensures faster, more reliable commissioning in evolving grid environments.
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FAQs
The EBR-3Z-2B0TA1-A uses a projection panel mounting scheme and fits within a common bezel, simplifying retrofits and new builds. Its dimensions are 13.64 in width by 8.62 in height by 7.49 in depth, with a 12.7 lb weight, making it suitable for mid‑ to large‑sized switchgear footprints. Ensure panel space, cabling routes, and RS485 RJ45 communications cabling comply with nearby devices and the 50/60 Hz protection scheme.
Key performance specs include a 50/60 Hz frequency rating, 5 A contact rating (AC/DC), a burden of 10 W / 17 VA, and a 5.2 kJ energy rating to handle fault energy without overload. The relay provides high-impedance bus differential protection, enabling selective fault detection and reduced nuisance trips while coordinating with other protection components in the feeder network.
This relay is ideal for feeder protection in substations and switchgear, where high-impedance differential protection improves fault isolation and coordination. It supports modern protection schemes via 61850/MDBS/DNP3 communication, enabling fast data exchange with SCADA and protection relays. Its projection mounting and common bezel simplify integration in tight spaces common to industrial plants and utility substations.
In the provided data, compliances are listed as 'Contact Manufacturer,' so confirm regulatory and enclosure certifications with Eaton for your project. For typical industrial protection equipment, verify CE markings, IP enclosure ratings, and SIL considerations with the supplier. The datasheet and warranty documents from Eaton provide authoritative guidance on installation practices and conformity assessment.
Expect improved protection coordination and reduced nuisance trips, leading to higher uptime and lower maintenance costs on feeders. The unit’s 5 A contacts and 50/60 Hz operation align with standard industrial power systems, while 61850/MDBS/DNP3 support minimizes commissioning effort. A one-year warranty (with 18 months from shipment) provides budget predictability and reduces risk during initial deployment.