ABB REF620E_F NBFNAANNNCC1BNN1X Digital relay protection and measurement and control device
Specific Parameters
Electrical Parameters
Auxiliary Power Supply 100-240V AC/DC, stable power supply over a wide rangeMeasurement Range Three-phase current, voltage, power factor, frequency (50/60Hz)Protection Functions Overcurrent, overvoltage, undervoltage, earth fault, loss of voltage, directional protection, arc flash protectionControl Accuracy Current/voltage measurement error ≤±0.2%, frequency measurement error ≤±0.01HzCommunication Protocols Compatible with IEC 61850, Modbus, DNP3.0, IEC 60870-5-103Communication Interfaces Equipped with Ethernet port and PROFIBUS interface, supporting GOOSE messaging and IEEE 1588 V2 time synchronizationInput/Output Multiple voltage output contacts and alarm trip signals, supporting access to various signal types such as temperature and pressureProtection Operation Time Millisecond-level response, fault isolation speed ≤20msCertification Standards Compliant with CE, UL, CSA certifications, meeting IEC power system safety specifications
Mechanical Parameters
Overall Dimensions 210mm×140mm×124mm, compact design saving control cabinet spaceWeight Approximately 1.5kg, lightweight design facilitating installation and deploymentMounting Method Panel mounting or 35mm standard DIN rail mounting, compatible with industrial control cabinet layoutHousing Material Industrial-grade high-strength flame-retardant shell, with anti-electromagnetic interference and dustproof performanceConnection Method Plug-in terminals, supporting quick wiring and maintenanceProtection Rating IP40, suitable for indoor industrial control environmentsStatus Indication Equipped with LCD display and power, operation, fault, trip status LED indicators, enabling visual operation and status monitoring
Environmental Parameters
Operating Temperature -20℃ to 70℃, no performance derating over the entire temperature rangeStorage Temperature -40℃ to 85℃, meeting extreme storage and transportation requirementsRelative Humidity 5%-95% (non-condensing), adapting to high-humidity industrial scenariosVibration Resistance Complies with IEC 60068-2-6 standard, 2g acceleration at 5Hz-500Hz frequency rangeShock Resistance Complies with IEC 60068-2-27 standard, 15g acceleration (11ms duration)EMC Compliance Complies with EN 55014-1, IEC 61000 standards, low electromagnetic interference and high anti-interference capability
Product Performance
Comprehensive protection functions covering core fault types of medium and high voltage equipment, with 100% fault identification accuracyExcellent measurement precision with key electrical parameter measurement error ≤±0.2%, providing reliable data support for system optimizationStrong communication compatibility with native support for IEC 61850 protocol and redundant networking, seamlessly connecting to digital substation systemsFast response speed with millisecond-level fault isolation and trip action, minimizing the impact range of faultsFlexible and convenient configuration supporting software-customized protection schemes and multi-parameter set storage, adapting to various power distribution topologies such as radial and looped networksComprehensive self-diagnostic capability, real-time monitoring device hardware status and communication links, with detailed fault information recording for easy troubleshootingUser-friendly operation interface, LCD screen supporting local parameter configuration and data viewing without additional debugging equipmentHigh operational reliability with industrial-grade components and strict quality control, adapting to complex industrial power environments
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