Key Benefits:
Compact and Flexible: The REM601 is designed to be compact and adaptable to different motor applications.
Easy to Use: It features a user-friendly interface for configuration and operation.
Fast Commissioning: Pre-configured functionality and selective testing features help to speed up commissioning.
Enhanced Safety: The relay includes features like sensor variants and detachable terminals with CT shorting to improve safety.

The ABB REM601 is suitable for a wide range of applications, including:
Manufacturing industries
Process industries
Oil and gas
Mining
Water and wastewater

Control and Monitoring Functions:
Motor Control: Can be used to control the motor’s starting, stopping, and other functions.
Monitoring: Provides extensive monitoring of motor parameters, such as current, voltage, power, and temperature.
Diagnostics: Includes self-supervision features to detect issues with the relay itself and provide diagnostic information.
Communication: Supports various communication protocols, such as Modbus RTU and IEC 60870-5-103, for easy integration with control systems.

Main features and functions
Thermal overload: Protects the motor from overheating due to prolonged overcurrent.
Short Circuit: Provides quick short circuit protection against damage to the motor and connected equipment.
Start-up monitoring: Monitors the motor during start-up to ensure that it accelerates correctly without any problems such as stalling.
Negative Phase Sequence: Detects and protects against unbalanced currents, which can cause overheating and damage.
Missing Phase: Prevents the loss of one or more phases in the power supply, which can lead to motor damage.
Locked Rotor: Prevents damage to the motor rotor if it is blocked from turning.
Sensitive to Ground Faults: Detects and protects against ground faults, which can be dangerous to personnel and equipment.
Loss of Load: Detects if the motor is running without a load, which may indicate a problem with the drive.
Circuit Breaker Fault: Monitors the circuit breaker and provides backup protection if the breaker fails to trip during a fault.