ABB REF610C11HCNR01 Feeder Protection Relay
Product Overview
The ABB REF610C11HCNR01 is a high‑performance feeder protection relay from the trusted Relion® 610 series by ABB, engineered to safeguard medium‑ and low‑voltage power distribution systems. This intelligent electronic device offers comprehensive protection, measurement, and control functions, making it ideal for modern industrial power networks, substations, and infrastructure applications.
Designed to continuously monitor electrical conditions and rapidly isolate faults, the REF610C11HCNR01 helps prevent equipment damage, reduce downtime, and enhance overall system reliability. Its modular design and communication capabilities allow seamless integration into both new installations and retrofit projects.
Key Specifications
| Specification |
Details |
| Model |
REF610C11HCNR01 |
| Product Type |
Feeder Protection Relay |
| Series |
ABB Relion® 610 |
| Protection Functions |
Overcurrent, Earth Fault, Thermal Overload, Negative Sequence |
| Input Signals |
3‑phase current and voltage measurements |
| Rated Frequency |
50/60 Hz |
| Power Supply |
24–250 V DC / 48–240 V AC |
| CT Input |
Configurable 1 A / 5 A |
| Communication Ports |
RS‑485, USB/RS‑232, optional Ethernet |
| Protocols Supported |
IEC 60870‑5‑103, Modbus, DNP3, IEC 61850 (optional) |
| Display |
LCD with backlight and navigation interface |
| Operating Temp. |
‑10 °C to +55 °C |
| Mounting |
Panel/Flush mounting |
| Compliance |
IEC 60255, CE, UL certified |
| Compiled from industrial product documentation. |
|
Functional Features
Comprehensive Protection Suite
The REF610C11HCNR01 delivers multiple protection elements for feeders, including:
Phase and earth overcurrent detection
Thermal overload monitoring
Negative sequence and phase unbalance protection
Directional fault detection when configured
Trip commands to breakers upon fault detection
These features ensure fast and selective isolation of faulted circuits, maintaining power network stability.
Event Logging and Fault Recording
When abnormal conditions occur, the REF610 records detailed event logs and disturbance data, which can be retrieved locally or remotely for post‑fault analysis. This logging capability enhances troubleshooting and system diagnostics.
Flexible Communication and Integration
Supporting standard industrial communication protocols such as IEC 60870‑5‑103, Modbus, and DNP3, this relay is easily integrated into SCADA and control systems. Optional IEC 61850 communication allows use in modern digital substation architectures.
User‑Friendly Interface
An LCD display with navigation buttons enables direct monitoring and configuration of relay settings. Menus are intuitive for local diagnostic review and parameter adjustment without external tools.

Design & Construction
The REF610C11HCNR01 features a compact modular housing optimized for panel‑mounted switchgear or control cabinets. Its chassis incorporates robust internal circuitry designed to withstand industrial electrical noise and environmental stress. Front‑panel LEDs and display indicators provide visual feedback on status, alarms, and operational conditions.
Typical Application Areas
This feeder protection relay is suited to a range of power system environments, including:
Utility Distribution Substations – Protects outgoing and incoming feeders in transmission and distribution networks.
Industrial Facilities – Safeguards plant power distribution feeders feeding motors, drives, and process loads.
Renewable Energy Systems – Integrates into solar, wind, and hybrid grid installations requiring precise feeder protection.
Infrastructure & Commercial Facilities – Protects critical power feeders in hospitals, data centers, and transportation hubs.
Advantages & Benefits
Reliable Fault Detection: Rapid and selective feeder fault isolation reduces outage duration.
Comprehensive Protection: Combines multiple protective elements in one device.
Enhanced Diagnostics: Rich event and disturbance logs help analyze power system events.
Flexible Integration: Supports standard communications for easy SCADA/DCS interfacing.
Compact & Modular: Saves panel space and simplifies installation and maintenance.
Summary
The ABB REF610C11HCNR01 feeder protection relay is a robust and feature‑rich solution for modern power distribution systems. With advanced protection algorithms, real‑time monitoring, and flexible communication options, it helps ensure electrical network safety, reliability, and operational efficiency in a wide range of industrial and utility applications.