Product Core Brief
- Model: REU610 AVVHCNN11
- Brand: ABB
- Series: 610 Series
- Core Function: Voltage protection and supervision
- Type: Numerical voltage protection relay
- Key Features: Overvoltage protection; undervoltage protection; residual overvoltage monitoring
- Typical Applications: Feeders, transformers, capacitor banks, motors, busbars
- Condition: New Original (New Surplus) / Tested Used Available
REU610 is designed for voltage monitoring and protection applications in medium-voltage and industrial distribution systems.
Product Introduction
ABB REU610 AVVHCNN11 is a numerical voltage protection relay designed for utility substations and industrial electrical systems requiring dependable voltage supervision and stable protective operation. It is commonly used in feeder panels, transformer protection systems, capacitor bank supervision, and busbar voltage monitoring applications.
The relay integrates overvoltage, undervoltage, and residual overvoltage protection functions within a compact ABB 610-series platform. In practical field operation, REU610 is widely selected for retrofit and maintenance projects where straightforward configuration, long-term reliability, and simple panel integration are more important than advanced digital substation communication features.
Its compact housing, relatively simple engineering structure, and compatibility with existing ABB protection systems make it suitable for upgrading older switchgear cabinets with minimal wiring modifications. Exact hardware revision, communication option, and auxiliary supply rating should always be verified before replacement or commissioning.
Key Selling Points & Differentiators
- ABB REU610 AVVHCNN11 combines voltage monitoring, overvoltage protection, undervoltage protection, and residual overvoltage supervision within one compact relay platform.
- Suitable for feeders, transformers, capacitor banks, motors, and industrial distribution systems.
- Compact panel-mounted design simplifies retrofit installation and switchgear modernization projects.
- Event recording and alarm logging support troubleshooting and maintenance analysis.
- LCD display and keypad provide straightforward local diagnostics and parameter setting.
- Wide auxiliary supply range supports both AC and DC station supply systems.
- Lower engineering complexity compared with modern multifunction IEC 61850 IED platforms.
- Stable long-term operation makes the relay widely used in industrial and utility retrofit applications.
