Eaton EBR-3Z-2B0KA0-A Bus differential relay - 61850
Part Number: EBR-3Z-2B0KA0-A
Quick Summary
Eaton Bus differential relay provides high-impedance protection for bus sections in power distribution systems. It helps protect complex switchgear by delivering fast, reliable fault detection and isolating faults before they propagate, reducing downtime and equipment wear. Certification considerations vary by region; consult the Eaton specification sheet for SIL, CE compliance, and relevant IP ratings to ensure regulatory alignment. The device supports 61850, MODBUS, and DNP3 communications, enabling seamless integration with modern substation automation and control systems. In practice, this relay improves protection reliability while supporting standard mounting and straightforward installation, delivering business value through improved system availability and reduced maintenance costs.
Product Information
Extended Description
EBR-3Z-2B0KA0-A Eaton: Eaton, Bus differential relay , 3000 High Impedance Bus Differential Relay and EBR-Z High Impedance Module in common bezel, 61850/MODBUS/DNP3 (FO LC), Standard Mount, 5.2kJ
Product Name
Eaton Bus differential relay
Catalog Number
EBR-3Z-2B0KA0-A
UPC
786679195574
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 provides selective fault detection, reducing nuisance trips and improving system stability. Impact: Enhances uptime and protection accuracy, lowering maintenance costs in substations and feeders. Application: Suitable for medium-to-large switchgear where precise fault isolation is critical and space is at a premium. Feature: 61850/MODBUS/DNP3 communications with fiber-optic options enables advanced substation automation integration. Impact: Facilitates remote monitoring, faster fault triage, and interoperable control across vendor platforms. Application: Ideal for modern control rooms, data centers, and utilities pursuing unified communication protocols. Feature: Standard mounting with compatibility to the EBR-Z High Impedance Module in a common bezel simplifies retrofits. Impact: Reduces install time, minimizes panel modification, and lowers lifecycle costs. Application: Retrofit projects or new builds that require scalable protection in shared enclosures. Feature: Electrical ratings including 5 A contact rating and 10 W / 17 VA burden provide reliable operation with manageable wiring. Impact: Ensures dependable tripping and easy wiring design, reducing field debugging time. Application: Protection relays in feeders and bus sections with demanding fault currents. Feature: Energy handling of 5.2 kJ and a wide operating temperature range (-20° to 60°C) support harsh environments. Impact: Improves resilience in outdoor substations and industrial facilities. Application: Environments with temperature variation and energy absorption requirements benefit from robust performance.
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FAQs
Install the unit using the standard mounting method with the common bezel when paired with the EBR-Z High Impedance Module. Allow space for wiring, fiber optic links if used, and heat dissipation. Follow Eaton’s installation guidelines and ensure correct bus differential wiring to achieve the full protection band without introducing nuisance trips.
Designed for both 50 and 60 Hz networks, the EBR-3Z-2B0KA0-A provides high-impedance differential protection suited to diverse regional grids. Its timing, current sensing, and differential logic are optimized to discriminate internal faults from external disturbances, improving selectivity and reducing unwanted trips in variable-frequency environments.
Yes. The relay offers 61850, MODBUS, and DNP3 communication options (FO LC), enabling integration with modern substation automation systems, remote monitoring, and centralized protection schemes. This interoperability supports scalable control architectures and streamlined data exchange across vendor platforms.
Warranty follows Eaton Selling Policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. For ongoing maintenance, rely on standard protection relay diagnostics, keep firmware aligned with the Eaton datasheet, and perform periodic functional tests to preserve accuracy and reliability.
Consider frequency rating (50/60 Hz), 5 A contact capability, burden (10 W / 17 VA), and energy handling (5.2 kJ). Ensure dimensional fit (7.49 in D, 8.62 in H, 13.64 in W) and weight (12.7 lb). Also verify compatibility with EBR-Z modules and intended protocol support (61850/MODBUS/DNP3) for your control strategy.