ABB REM611 Relion 611 Motor Protection and Control Relay

ABB REM611 is a compact intelligent electronic device from the Relion 611 series. It is specially designed for protection, control, 

measurement and monitoring of low and medium voltage asynchronous motors such as pumps, fans and conveyors. Integrated with multiple protection functions, 

data recording and standard communication interfaces, it ensures safe and stable operation of motor circuits in industrial plants, power stations and water treatment facilities.

3. Technical Specifications

• Part Number: REM611
• Manufacturer: ABB
• Series: Relion 611
• Application: Low & medium voltage motor protection
• Auxiliary Supply: 85–264 V AC/DC universal input
• CT Secondary Rating: 1 A / 5 A selectable
• Main Protection Functions: Overload, overcurrent, earth fault, locked rotor, unbalanced current, under/over voltage, frequency protection
• Digital I/O: 12 digital inputs, 8 relay outputs (expandable)
• Communication: IEC 61850, GOOSE, Modbus, IEC 60870-5-103
• Operating Temperature: -25°C ~ +70°C
• Protection Degree: IP40 (front), IP20 (terminals)
• Dimensions: 144 × 160 × 140 mm
• Net Weight: Approx. 1.5 kg
• Certification: CE, UL, IEC 60255