ABB RB520 3BSE003528R1 power systems

The ABB RB520 (3BSE003528R1) is a part of the Relion 500 series protection relays, commonly used in electrical power systems for protection, control, and monitoring. Below are its key technical parameters:

General Specifications:

• Product Series: Relion 500
• Type: Protection Relay (RB520)
• Order Code: 3BSE003528R1

Electrical Parameters:

• Rated Voltage (Uₙ):
• • DC Power Supply: 24–60 V DC (typical)
  • AC Power Supply: 100–240 V AC/DC (depending on variant)
• Power Consumption: Typically <10 W
• Frequency: 50/60 Hz

Input/Output (I/O) Specifications:

• Binary Inputs:
  • Typically 8–16 programmable inputs (24/48 V DC or 110/230 V AC/DC)
• Binary Outputs (Relays):
  • Typically 6–12 relay outputs (changeover contacts)
• Analog Inputs: Optional (if supported)

Communication Interfaces:

• Serial Communication: RS485 (Modbus RTU)
• Ethernet: Optional (depending on variant)
• Protocols Supported: IEC 61850, Modbus, DNP3 (optional)

Protection Functions:

• Overcurrent Protection (50/51, 50N/51N)
• Earth Fault Protection (67, 67N)
• Directional Overcurrent (67, 67N)
• Under/Overvoltage Protection (27/59)
• Frequency Protection (81H/81L)
• Thermal Overload Protection (49)

Mechanical & Environmental:

• Mounting: Panel-mounted (19″ rack or flush)
• Operating Temperature: -25°C to +55°C
• Storage Temperature: -40°C to +70°C
• Humidity: Up to 95% (non-condensing)
• Protection Class: IP20 (standard)

Certifications & Standards:

• Compliance: IEC 60255, IEC 61850 (if applicable)
• EMC Standards: IEC 61000-6 (immunity & emissions)

Applications:

• Distribution Networks
• Industrial Power Systems
• Renewable Energy Integration
• Motor & Feeder Protection