ABB REM620A_F NAMBBABA33E5BNN1XF Motor protection and control relay
Specific Parameters
Core and Function Parameters
Product Type Motor Protection and Control Relay
Manufacturer ABB
Model REM620A_F NAMBBABA33E5BNN1XF
Series Relion® 620 Series
Protection Functions Over-current Protection, Overload Protection, Short-circuit Protection, Under-frequency Protection, Earth Fault Protection, Motor Differential Protection, Arc Flash Detection (AFD)
Monitoring Functions Motor Temperature Monitoring, Operation Status Supervision, Fault Recording and Localization
Input Interfaces Up to 14-channel RTD Input, Analog Input (4-20mA)
Output Interfaces Programmable Relay Output, Digital Output
Terminal Blocks Ring Terminal Blocks (all input and output channels)
Communication Interfaces Ethernet Interface, Serial Communication Interface
Supported Protocols IEC 61850 (Ed1/Ed2), Modbus, DNP3, IEC 60870-5-103, supports HSR/PRP Redundancy Protocols, GOOSE Messaging
Synchronization Function Supports IEEE 1588 V2 Precision Time Protocol
Operation Methods Local Programmable Buttons, Browser-based HMI, Remote Software Configuration
Installation Methods DIN Rail Mounting, Panel Mounting
Certification Standards CE, IEC Relevant Standards, RoHS
Status Indication Large Graphical LCD Display, LED Status Indicators
Electrical and Performance Parameters
Rated Voltage 10kV-36kV (system voltage)
Rated Current 1A-6000A (compatible with conventional instrument transformers or sensors)
Breaking Capacity 10kA
Measurement Accuracy Current Measurement ±0.2% full scale, Temperature Measurement ±0.1% full scale
Response Time Fault Protection Action ≤10ms
Communication Rate Ethernet up to 1Gbps, Serial Communication up to 115.2kbps
Power Supply Voltage 24V DC/110V DC/220V DC (wide-range compatible)
Power Consumption Typical 15W, Maximum 20W
Isolation Level 3-way Isolation (Input-Output-Power), Isolation Voltage 2500V AC/1min
Common Mode Rejection Ratio ≥90dB (50/60Hz)
Physical and Environmental Parameters
Overall Dimensions 145mm×190mm×240mm (L×W×H)
Weight Approximately 1.8kg
Operating Temperature Range 0°C to 85°C
Storage Temperature Range -40°C to 85°C
Relative Humidity 0%-95% (non-condensing, no dew)
Protection Rating IP20 (per IEC 60529)
Housing Material Flame-retardant ABS Plastic (UL94 V-0 Grade)
Vibration Resistance 10-500Hz, 1.5G (30min per X/Y/Z axis)
Shock Resistance 25G (11ms, 3 times per X/Y/Z axis)
Product Performance
Integrates multiple precise protection functions, covering fault scenarios during the entire motor operation stage, with fast fault action response and extremely high protection reliability
14-channel RTD input combined with high-precision temperature measurement, real-time monitoring of motor windings and bearing temperature to prevent overheating damage
Supports multi-protocol redundant communication and precise time synchronization, ensuring stable and uninterrupted data transmission to meet the needs of complex power grid dispatching
Withdrawable plug-in design and ring terminal blocks, easy installation and disassembly, strong wiring reliability and high operation and maintenance efficiency
Large graphical display and browser-based HMI, supporting custom interfaces and local/remote operation with excellent usage flexibility
Wide voltage adaptation and industrial-grade isolation design, effectively resisting electromagnetic interference and maintaining stable performance in harsh industrial environments
Supports function expansion and personalized configuration, enabling flexible customization of protection logic according to motor type and application scenario
Fault recording and quick localization functions, facilitating operation and maintenance personnel to trace the cause of faults and shorten downtime















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