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The ABB REF615A_1G HAFPAKAKNDA1BNN11G is a high-performance, multifunction feeder protection and control relay from ABB’s Relion® 615 product family, engineered for medium-voltage distribution networks in utility, industrial, and infrastructure applications. As part of ABB’s globally recognized Relion series, the ABB REF615A_1G HAFPAKAKNDA1BNN11G integrates advanced protection, local automation, metering, and communication capabilities into a single compact unit compliant with IEC 61850 Edition 2 standards. This specific configuration—denoted by the order code HAFPAKAKNDA1BNN11G—includes core functions such as three-phase overcurrent, earth-fault, breaker failure, and arc protection, making it ideal for radial or looped feeders requiring fast, selective fault clearance.
Designed for seamless integration into modern digital substations, the ABB REF615A_1G HAFPAKAKNDA1BNN11G supports GOOSE messaging, sampled values (SV), and MMS over Ethernet, enabling peer-to-peer communication without hardwired interlocks. Its embedded web server allows remote access for diagnostics and configuration, while front-panel LEDs and an optional LCD display provide real-time status visibility. Within industrial automation and power management systems, the ABB REF615A_1G HAFPAKAKNDA1BNN11G delivers enhanced grid resilience, reduced downtime, and lifecycle cost savings through predictive maintenance features and comprehensive event recording.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | REF615A_1G HAFPAKAKNDA1BNN11G |
| Manufacturer | ABB |
| Product Type | Multifunction feeder protection and control relay |
| Protection Standard | IEC 61850 Edition 2 (GOOSE, MMS, Sampled Values) |
| Current Inputs | 5 A or 1 A selectable; 3-phase + residual/earth-fault current |
| Voltage Inputs | 3-phase phase-to-phase or phase-to-neutral (up to 120 V AC) |
| Auxiliary Power | 24–250 V DC or 100–240 V AC (universal auto-ranging) |
| Operating Temperature | -25°C to +55°C (extended storage: -40°C to +85°C) |
| Communication Interfaces | 2× Ethernet (RJ45), RS485 (Modbus RTU), IRIG-B time sync |
| Mounting | Flush or panel mount (standard 1/2 19″ rack width, 6U height) |
| Dimensions | 220 mm × 160 mm × 220 mm (W×H×D) |
| Certifications | CE, IEC 60255, IEEE C37.90, EN 50263, UL 508 |
Main Features and Advantages
Comprehensive protection suite with arc flash detection: The ABB REF615A_1G HAFPAKAKNDA1BNN11G includes ANSI-standard functions such as 50/51 (instantaneous/time-overcurrent), 50N/51N (earth-fault), 50BF (breaker failure), and optional 79 (auto-reclosing). Critically, it supports ABB’s proprietary arc protection (ANSI 78) using fiber-optic sensors to detect internal switchgear faults within 1–4 ms—significantly reducing equipment damage and personnel risk.
Native IEC 61850 Edition 2 with full GOOSE interoperability: Unlike retrofit solutions, the ABB REF615A_1G HAFPAKAKNDA1BNN11G implements IEC 61850 at the firmware level, enabling direct peer-to-peer tripping between relays without external logic processors. This eliminates wiring complexity and improves system reliability in ring-main units or motor control centers.
Advanced disturbance recording and fault analysis: With 128 MB of non-volatile memory, the ABB REF615A_1G HAFPAKAKNDA1BNN11G captures up to 100 COMTRADE files (oscillography) with 4 kHz sampling, including pre- and post-fault waveforms. Engineers can analyze fault inception angle, harmonic content, and CT saturation—accelerating root-cause investigations.
Cyber-secure remote access and configuration: The built-in HTTPS-enabled web server allows secure parameter upload/download, event review, and firmware updates via standard browsers. Role-based access control (RBAC) and audit logging ensure compliance with NERC CIP and ISO 27001 requirements.
Compact footprint with modular expandability: Despite its rich feature set, the ABB REF615A_1G HAFPAKAKNDA1BNN11G fits in tight switchgear panels. Optional add-on modules (e.g., additional I/O, RTD inputs) can be factory-installed to match application needs without increasing enclosure size.
Application Field
The ABB REF615A_1G HAFPAKAKNDA1BNN11G is widely deployed in utility distribution substations to protect overhead lines, underground cables, and transformer feeders. Its high-speed earth-fault detection is particularly valuable in compensated (resonant-grounded) networks common in Europe and Asia, where traditional relays struggle with low fault currents. The ABB REF615A_1G HAFPAKAKNDA1BNN11G’s directional overcurrent capability ensures selectivity in meshed urban grids.
In industrial settings—such as oil & gas platforms, mining operations, and data centers—the ABB REF615A_1G HAFPAKAKNDA1BNN11G safeguards critical motor feeders, bus couplers, and auxiliary transformers. Its arc protection function mitigates catastrophic failures in metal-enclosed switchgear, directly supporting OSHA and NFPA 70E safety mandates. The relay’s ability to communicate via IEC 61850 also simplifies integration into plant-wide SCADA or DCS systems like ABB Ability™ System 800xA.
Renewable energy plants use the ABB REF615A_1G HAFPAKAKNDA1BNN11G on collector feeders connecting solar inverters or wind turbines to the substation. Here, its voltage-dependent overcurrent (51V) and frequency protection (81O/U) functions help maintain stability during grid disturbances. Municipal water and wastewater facilities rely on its robust design for outdoor kiosk installations, where wide temperature tolerance and surge immunity are essential.
Related Products
REF615C: Compact version with fewer I/O and no arc protection
REF620: Higher-end model with dual Ethernet ports and enhanced cybersecurity
REF542plus: Legacy electromechanical-style relay replaced by REF615 series
REU615: Earth-fault unit designed to complement REF615 in high-resistance grounding
615 Engineering Tool: Official ABB PCM600-based software for configuration
REF615 HAFPAKAKNDA1BNN11E: Variant with different I/O or communication options
REF630: Transmission-level relay for higher voltage applications (>36 kV)
Installation and Maintenance
Pre-installation preparation: Before installing the ABB REF615A_1G HAFPAKAKNDA1BNN11G, verify CT/VT polarity and ratios match the configured settings. Use shielded twisted-pair cables for analog inputs, with shields grounded at the relay end only. Confirm that the auxiliary power source meets ripple and voltage stability requirements per IEC 60255-27. Load the correct IED configuration file (CID/SCD) via the front USB port or Ethernet to ensure proper IEC 61850 object mapping.
Maintenance recommendations: The ABB REF615A_1G HAFPAKAKNDA1BNN11G requires no routine calibration due to its solid-state design. Perform annual functional tests using a relay test set to validate all enabled protection elements per IEEE C37.234 guidelines. Review event logs and oscillography records quarterly to identify incipient issues like intermittent earth faults or CT saturation. Keep firmware updated through ABB’s secure channels to address known vulnerabilities. Always maintain a spare ABB REF615A_1G HAFPAKAKNDA1BNN11G with identical configuration for rapid replacement during outages.
