Eaton EBR-3Z-2B0KB1-A Bus Differential Protective Relay

The Eaton EBR-3Z-2B0KB1-A is a bus differential protection relay (high-impedance) combining a 3000 high-impedance module and an EBR-Z high-impedance module in a common bezel. Rated with a 5.2 kJ energy handling capability and engineered for panel mounting, it provides high-sensitivity detection and stable restraint characteristics for reliable fault identification. Suited to protection relay and motor control systems, it supports IEC 61850, Modbus and DNP3 (fiber-optic LC) integration for substation automation.

Key Features

• High-impedance differential protection for sensitive bus fault detection with stable restraint performance.
• Three-phase bus differential scheme for switchgear protection with high selectivity.
• Differential protection applicable to transformers, generators and large motors in power systems.
• Restricted earth-fault (REF) capability for grounded-wye and balanced earth-fault protection with clear detection.
• Communications: IEC 61850, Modbus and DNP3 over fiber-optic LC interface for substation automation.
• Rugged panel-mount design with conformal coating, projection mount and common bezel modules for retrofit installations.

Technical Specifications

Applications

Typical uses include primary bus protection inside medium- and high-voltage switchgear, transformer differential protection in substations, generator differential schemes at power plants, protection of large motors, and restricted earth-fault detection on grounded-wye windings.

We supply genuine Eaton EBR relays through authorized distribution channels. Based in Batam, Indonesia, Wulan Dari ships across Indonesia and Southeast Asia with competitive lead times and tailored logistics. Contact our sales team to confirm stock, request a formal quotation and arrange fast delivery and technical support.