ABB|RER103|Bus Connection Module
Description
The ABB RER103 is a bus connection module for the REF601/REJ601/REM601 protection relays, enabling communication and control.
Features
Supports bus communication
Facilitates relay integration
Compact design
Technical Specifications
Communication
Protocol: Modbus RTU
Baud rate: 300 to 19200 bps
Interface: RS-485, 2-wire
Input/Output
Binary inputs: 2, optically isolated
Input voltage: 24–250 V DC
Output relays: 2, changeover type
Contact rating: 5 A at 250 V AC/DC
Power Supply
Voltage range: 24–265 V AC/DC
Power consumption: 5 W maximum
Environmental Limits
Operating temperature: -25°C to +55°C
Storage temperature: -40°C to +85°C
Humidity: 5% to 95% non-condensing
Ingress protection: IP20
Physical Characteristics
Weight: 0.5 kg
Dimensions: 90 mm x 35 mm x 170 mm
ABB|RER103|Bus Connection Module
Description
The ABB RER103 is a bus connection module for the REF601/REJ601/REM601 protection relays, enabling communication and control.
Features
Supports bus communication
Facilitates relay integration
Compact design
Technical Specifications
Communication
Protocol: Modbus RTU
Baud rate: 300 to 19200 bps
Interface: RS-485, 2-wire
Input/Output
Binary inputs: 2, optically isolated
Input voltage: 24–250 V DC
Output relays: 2, changeover type
Contact rating: 5 A at 250 V AC/DC
Power Supply
Voltage range: 24–265 V AC/DC
Power consumption: 5 W maximum
Environmental Limits
Operating temperature: -25°C to +55°C
Storage temperature: -40°C to +85°C
Humidity: 5% to 95% non-condensing
Ingress protection: IP20
Physical Characteristics
Weight: 0.5 kg
Dimensions: 90 mm x 35 mm x 170 mm
