Schneider Electric LR9F7375 Thermal Overload Relay

The Schneider Electric LR9F7375 Thermal Overload Relay provides motor protection by monitoring current and disconnecting the circuit when overload conditions are detected, and it mounts directly to TeSys F contactors or panel-mounted setups as part of the TeSys LR9F family. Key specifications include a 200–330 A current adjustment range, Class 10 overload trip, 24 V DC control supply, and 50/60 Hz network frequency. It includes 1 normally open and 1 normally closed auxiliary contact, a 5 A control-circuit current rating, and a rated operational voltage up to 1000 V AC with an 8 kV impulse withstand. The unit offers IP20 protection and operates from −20°C to 55°C, making it suitable for integration in motor starter assemblies in harsh industrial environments. Typical applications span manufacturing lines, heavy machinery, conveyors, compressors, pumps, HVAC equipment, and large motor control centers where dependable motor protection is required. Common replacements for this relay include Schneider Electric LR9G500, Schneider Electric LR9F5369, and ABB EF370-500.