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The ABB REF615C_C HCFFAEAGANB2BAN1XC is a high-performance digital feeder protection and control relay belonging to ABB's renowned Relion® 615 series. Specifically engineered for medium-voltage power distribution networks, this intelligent electronic device (IED) provides comprehensive protection, control, measurement, and monitoring functions for overhead lines and cable feeders in both utility and industrial applications .

Designed for modern grid requirements, the REF615C_C seamlessly adapts to various network topologies—including radial, looped, and meshed configurations—with or without distributed energy resources (DERs). Its integrated arc protection capability (optional) adds an essential safety layer for switchgear applications

Protection Functions

Overcurrent Protection: Definite-time and inverse-time characteristics (DT/IDMT) for phase and earth faults

Directional Overcurrent: Three-phase directional protection for complex network configurations

Earth Fault Protection: Sensitive ground fault detection with multiple operating modes

Thermal Overload: Two-time-constant thermal protection for feeders, cables, and distribution transformers

Voltage Protection: Under/overvoltage, frequency deviation, and power quality monitoring

Auto-Reclosing: Configurable autoreclosing sequences for transient fault clearance

Arc Protection: Optional integrated arc flash detection for personnel safety

Measurement & Monitoring

Electrical Parameters: Precise measurement of voltage, current, power, power factor, frequency, and harmonics

Power Quality: Current and voltage total harmonic distortion (THD) monitoring

Circuit Breaker Condition: Real-time monitoring of contact wear, operation counter, and mechanical status

Fault Recording: Comprehensive disturbance recording with pre-trigger and post-trigger data capture

Control & Communication

Breaker Control: Local/remote circuit breaker operation with synchronism check

Redundant Ethernet: Dual Ethernet ports supporting PRP and HSR protocols for seamless redundancy

Cybersecurity: Multi-level user authorization and audit trail functionality

Pre-Installation Requirements

Environmental Verification: Ensure the installation location is clean, dry, and free from excessive dust, corrosive substances, or moisture. Ambient temperature must remain within -25°C to +70°C .

Compatibility Check: Verify voltage, current, and frequency ratings match the specific application requirements and existing power system parameters .

Documentation Review: Thoroughly study ABB's official wiring diagrams and installation manuals before proceeding with any connections .

Safety Preparation: Implement proper lockout/tagout procedures and ensure adequate electrical grounding for safe operation .

Physical Installation

Mounting: Install the relay in switchgear using standard panel cutouts. The unit supports rear-panel wiring configuration for switchgear integration .

Wiring: Connect current transformers (CTs), voltage transformers (VTs), binary inputs, and output contacts strictly according to ABB wiring diagrams. Ensure all terminal connections are tight and corrosion-free .

Communication Setup: Configure Ethernet connections for IEC 61850 or Modbus TCP/IP integration with SCADA systems .

Grounding: Establish proper protective earthing to minimize electromagnetic interference and ensure personnel safety .

Commissioning

Functional Testing: Verify all protection functions using secondary injection testing before energizing primary equipment .

Setting Configuration: Apply appropriate protection curves and threshold values based on network coordination studies. The relay offers multiple pre-configured solutions while supporting custom configurations .

Communication Verification: Test IEC 61850 GOOSE messaging and client/server communications with the substation automation system .

Daily Operation

Local HMI Navigation: Utilize the color LCD and keypad for local monitoring, event viewing, and manual control operations .

LED Indicators: Monitor programmable LEDs for quick status indication of protection operations, alarms, and communication health .

Remote Access: Leverage Web HMI functionality for browser-based monitoring and control (requires proper cybersecurity measures)

Routine Inspections (Monthly/Quarterly)

Visual Examination: Inspect the relay front panel for physical damage, loose connections, or abnormal LED indications .

Connection Integrity: Verify CT/VT secondary circuits remain secure and properly shorted where required during maintenance .

Thermal Monitoring: Check operating temperature remains within specified limits; deviations may indicate cooling system failures or overload conditions .

Periodic Maintenance (Annual)

Protection Function Testing: Perform comprehensive secondary injection tests to verify overcurrent, earth fault, and voltage protection elements operate within specified tolerances .

Calibration Verification: Validate measurement accuracy against certified reference standards .

Firmware Updates: Install ABB-released software updates to enhance functionality, security, and performance .

Event Log Review: Analyze disturbance records and event sequences to identify potential system issues .

Long-Term Maintenance (5-10 Years)

Battery Replacement: Replace the internal real-time clock battery if applicable .

Contact Inspection: Examine output relay contacts for wear; replace if contact resistance exceeds specifications.

Complete System Audit: Perform full functional testing and documentation review to ensure continued compliance with protection coordination requirements.

Documentation & Record Keeping

Maintain detailed records of all maintenance activities, including inspection dates, test results, firmware versions, and configuration changes to track device performance over its operational lifecycle .

High Voltage Danger: This device is used in medium-voltage applications where lethal voltages are present. Only qualified electrical personnel should perform installation, commissioning, or maintenance .

CT Secondary Hazards: Never open-circuit current transformer secondary circuits while primary current is flowing—dangerous high voltages may result .

Arc Flash Risk: When integrated with arc protection systems, follow all NFPA 70E and local safety regulations for arc flash boundary calculations and personal protective equipment (PPE) requirements.

Cybersecurity: Implement password policies, user privilege management, and network segmentation to prevent unauthorized access to critical protection functions .

Do you provide global shipping services?

Yes. We have local distribution centers on all continents, which can quickly transport parts to any corner of the world.

2. What payment methods and currencies do you accept?

To make your purchasing process as simple as possible, we offer multiple payment methods including bank transfer, check, and PayPal. Meanwhile, we also accept most mainstream credit and debit cards, such as Visa, Mastercard, and American Express. We can accept payments in most major currencies worldwide, but we recommend using US dollars (USD), British pounds (GBP), or euros (EUR) as a priority. Payments in other currencies may incur additional fees. All transactions are securely processed by HSBC Bank and HSBC Merchant Services.

How many parts do you currently have in stock?

We have a vast inventory of thousands of new, refurbished, and outdated automation components, including products from well-known manufacturers such as ABB and Schneider. If you cannot find the required parts, please do not worry. We work closely with a global network of professional suppliers to provide you with tailored quotes even if the part is not listed on our website.

Who can I contact if I encounter any problems?

Our experienced customer service team will handle any issues after you place your order.