Description
Detailed parameter table
Parameter name | Parameter value |
Product model | REF615 HCFKAEADABCZDAA11E |
Manufacturer | ABB |
Product category | Advanced Numerical Protection Relay for Medium-Voltage Switchgear |
Protection functions | Overcurrent, earth fault, thermal overload, voltage protection, synchronization, arc flash detection |
Current rating | Up to 8000 A (with current transformers) |
Voltage rating | Up to 40.5 kV |
Communication ports | 2 x Ethernet (IEC 61850 Ed. 2.1, Modbus TCP/IP), 1 x RS485 (Modbus RTU), 1 x USB-C |
Safety integrity level | SIL 3 (per IEC 61508) |
Operating voltage | 110/220 V AC/DC ±20%, 24 VDC option |
Power consumption | 20 W typical, 30 W maximum |
Response time | <5 ms for fault detection, <2 ms for arc flash detection |
Operating temperature | -40°C to +70°C (-40°F to +158°F) |
Humidity tolerance | 5% to 95% RH (non-condensing), 100% RH with condensation (temporary) |
Installation method | Panel mount, DIN rail mount (standard) |
Dimensions | 144mm × 144mm × 165mm (5.67″ × 5.67″ × 6.50″) |
Certifications | CE, UL, cUL, IEC 61850-3 Ed. 2, IEC 60255, ATEX, IECEx, RoHS |
MTBF | >400,000 hours |
ABB REF615 HCFKAEADABCZDAA11E
Product introduction
The ABB REF615 HCFKAEADABCZDAA11E represents an advanced iteration of ABB’s renowned numerical protection relay series, specifically engineered to meet the evolving demands of modern medium-voltage electrical distribution systems. Building upon the proven performance of its predecessors, this relay integrates enhanced protection capabilities, advanced communication features, and ruggedized design elements to deliver superior safety, reliability, and connectivity for critical electrical infrastructure.
Designed for medium-voltage switchgear in industrial plants, power utilities, and renewable energy facilities, ABB REF615 HCFKAEADABCZDAA11E serves as a central protection and control hub that safeguards electrical assets, minimizes downtime, and ensures personnel safety. Its advanced digital platform combines precise measurement technology with intelligent analytics, enabling not just fault detection and isolation but also predictive maintenance capabilities that optimize system availability.
This enhanced model maintains seamless compatibility with ABB’s safety ecosystem, including controllers like the ABB LD800HSE 3BDH000320R02, while introducing new features that extend protection coverage and simplify integration into smart grid and industrial 4.0 environments. Its compact form factor and flexible mounting options make it suitable for both new installations and retrofits of existing switchgear, providing an upgrade path for facilities seeking enhanced protection capabilities.
Core advantages and technical highlights
Enhanced protection portfolio: ABB REF615 HCFKAEADABCZDAA11E introduces critical new protection functions, most notably arc flash detection with a response time of less than 2 ms, enabling rapid mitigation of this dangerous electrical hazard. The relay maintains comprehensive traditional protection functions while expanding current handling capacity to 8000 A and voltage rating to 40.5 kV, making it suitable for larger electrical systems. Advanced algorithms provide improved fault discrimination, reducing nuisance tripping while ensuring faster response to genuine faults compared to previous models.
Next-generation communication capabilities: Equipped with IEC 61850 Ed. 2.1 compliance, ABB REF615 HCFKAEADABCZDAA11E supports enhanced data modeling and faster communication for integration into modern digital substations. The addition of a USB-C port simplifies local configuration and data retrieval, while dual Ethernet ports with redundant networking support ensure reliable connectivity. The relay’s communication stack supports time-sensitive networking (TSN) capabilities, enabling deterministic data transmission essential for real-time protection and control applications in smart grids.
Superior environmental resilience: This advanced model extends operating capabilities with a temperature range of -40°C to +70°C, making it suitable for extreme climate conditions from arctic industrial facilities to desert solar installations. It withstands temporary 100% humidity with condensation, expanding its applicability in humid environments like tropical plants or wastewater treatment facilities. The relay’s rugged construction includes enhanced vibration and shock resistance, ensuring reliable operation in mobile applications or industrial environments with heavy machinery.
Increased safety integrity: Achieving SIL 3 certification (up from SIL 2 in the standard model), ABB REF615 HCFKAEADABCZDAA11E meets the highest safety requirements for protection relays, making it suitable for safety instrumented systems (SIS) in critical applications. Its enhanced self-diagnostic capabilities provide 99% fault coverage, ensuring detection of internal faults that could compromise protection functions. The relay incorporates secure firmware update mechanisms and access control features that prevent unauthorized modifications to protection settings.
Comparison with REF615 HFKAEADABCZDAA11E
Feature | REF615 HFKAEADABCZDAA11E | REF615 HCFKAEADABCZDAA11E |
Safety Integrity Level | SIL 2 | SIL 3 |
Maximum Current Rating | 6300 A | 8000 A |
Maximum Voltage Rating | 36 kV | 40.5 kV |
Arc Flash Detection | Not available | Standard |
Fault Detection Response | <10 ms | <5 ms |
Operating Temperature Range | -25°C to +70°C | -40°C to +70°C |
Communication | IEC 61850 (basic) | IEC 61850 Ed. 2.1 with TSN support |
Additional Ports | None | USB-C interface |
Humidity Tolerance | 5-95% RH (non-condensing) | 5-95% RH, 100% with temporary condensation |
MTBF | >300,000 hours | >400,000 hours |
Power Consumption | 25 W typical | 20 W typical (20% reduction) |
ABB REF615 HCFKAEADABCZDAA11E
Typical application scenarios
In large industrial complexes with high-power requirements, such as steel mills and chemical processing plants, ABB REF615 HCFKAEADABCZDAA11E protects medium-voltage distribution systems supplying critical process equipment. The relay’s enhanced current rating (8000 A) handles the high loads of industrial machinery, while its arc flash detection capability provides essential protection for personnel working on switchgear. Integrated with ABB LD800HSE safety controllers, it coordinates electrical fault responses with process safety systems, ensuring synchronized shutdowns that prevent equipment damage and protect personnel during electrical emergencies.
Renewable energy power plants, including utility-scale solar farms and wind parks, utilize ABB REF615 HCFKAEADABCZDAA11E to protect medium-voltage collection systems and grid interconnection points. The relay’s wide operating temperature range (-40°C to +70°C) withstands extreme environmental conditions at these installations, while its advanced synchronization function ensures stable grid connection of renewable generation. Its IEC 61850 Ed. 2.1 communication capabilities enable seamless integration with renewable energy management systems, facilitating remote monitoring and control across geographically dispersed installations.
Hazardous area facilities, such as oil refineries and gas processing plants, deploy ABB REF615 HCFKAEADABCZDAA11E in explosion-proof switchgear to protect electrical distribution systems in classified zones. The relay’s ATEX and IECEx certifications ensure safe operation in these environments, while its enhanced diagnostic capabilities provide early warning of potential electrical issues. When combined with ABB LD800HSE controllers, it forms a comprehensive safety solution that addresses both electrical hazards and process risks, with coordinated shutdown sequences that prevent ignition sources during process upsets.
Integration with safety and automation systems
ABB REF615 HCFKAEADABCZDAA11E offers enhanced integration capabilities with ABB’s safety and automation ecosystem:
LD800HSE coordination: The relay’s SIL 3 certification enables direct integration with ABB LD800HSE 3BDH000320R02 safety controllers in safety instrumented systems, facilitating certified safety functions that combine electrical and process protection logic.
Arc flash mitigation: Detected arc flash events trigger both local protection actions and safety system communications, enabling the LD800HSE to initiate personnel evacuation alarms and process isolation before protective devices operate.
Data sharing: Enhanced IEC 61850 communication provides richer data exchange with SCADA systems and safety controllers, including real-time waveform data, fault records, and diagnostic information for comprehensive system analysis.
Power management integration: The relay communicates with energy management systems to optimize power usage while maintaining protection integrity, supporting demand response and load shedding strategies during system stress conditions.
Cybersecurity: Implements IEC 62351 security standards to protect communication with safety and automation systems from unauthorized access or tampering.
Related model recommendations
ABB LD800HSE 3BDH000320R02: Safety controller that forms a SIL 3-certified safety solution with REF615 HCFKAEADABCZDAA11E.
ABB PFEA113-20 3BSE050092R20: Weight transmitter providing load data to systems protected by the REF615 relay.
ABB EL3020: Safety I/O module extending input/output capabilities for integrated electrical and process safety systems.
ABB XVC763A 3BHE036885R0102: Managed Ethernet switch supporting secure communication in IEC 61850 networks with REF615.
ABB CM572 3BSE013229R1: Communication gateway facilitating integration between REF615 and legacy control systems.
ABB UFC921A101 3BHE024855R0101: Signal conditioner providing process measurement data for coordinated protection strategies.
ABB 3HAC031684-001: Enhanced rugged cable assembly for reliable connections in extreme environments.
ABB RET670: Substation automation relay that works with REF615 in complex medium-voltage networks.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing ABB REF615 HCFKAEADABCZDAA11E, verify the mounting location can accommodate the relay’s operating temperature range (-40°C to +70°C). Confirm the control power supply matches the specified rating (110/220 V AC/DC ±20% or 24 VDC option). Use shielded twisted-pair cables for all current and voltage transformer connections, with proper grounding of shields at both ends to minimize electromagnetic interference. For arc flash detection, follow ABB’s recommended sensor placement guidelines to ensure optimal detection coverage. Mount the relay in a vertical position using either panel mount or standard 35mm DIN rail, ensuring minimum 50mm clearance for ventilation and wiring access.
Maintenance suggestions: Perform quarterly visual inspections and review diagnostic data via the relay’s web interface or USB-C port. Test protection functions semi-annually using secondary injection testing, with special attention to arc flash detection functionality. Calibrate current and voltage transformer connections annually to maintain measurement accuracy. Utilize the relay’s condition monitoring data to implement predictive maintenance, addressing potential issues before they affect operation. When updating firmware, use ABB’s secure update tool and verify protection settings remain intact after update. For systems integrated with ABB LD800HSE, test the complete safety chain annually to ensure proper coordination between electrical protection and process safety functions.
Service and guarantee commitment
ABB provides ABB REF615 HCFKAEADABCZDAA11E with an industry-leading 48-month warranty covering manufacturing defects and ensuring compliance with published performance specifications under normal operating conditions. Our global technical support network includes specialists in advanced protection relay applications who offer expert assistance for installation, configuration, and troubleshooting.
Customers receive access to enhanced resources including digital twin simulation tools, arc flash risk assessment software, and comprehensive integration guides for connecting with safety controllers like ABB LD800HSE. Beyond the warranty period, ABB offers specialized services including arc flash studies, relay setting optimization, and cybersecurity assessments to ensure ongoing performance and compliance. ABB’s commitment to electrical safety excellence ensures that ABB REF615 HCFKAEADABCZDAA11E delivers reliable, advanced protection for critical electrical infrastructure throughout its operational lifecycle.
Full 12-month warranty on all components
Dedicated after-sales support
Same-day dispatch on 1000s of parts
All units are fully tested
- 1. Email confirmation
You will get an email confirming that we have received your enquiry. - 2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition. - 3. Your quote
You will receive a comprehensive quote tailored to your specific needs.