Schneider Electric LR9F5369 Electronic Thermal Overload Relay

The Schneider Electric LR9F5369 electronic thermal overload relay from the TeSys LRF family provides precise motor protection by monitoring current in three-phase circuits and tripping the control circuit when overload, phase loss, or abnormal conditions are detected. Designed for direct mounting on a contactor or panel plate, it is compatible with LC1F115 through LC1F185 contactors and is intended for motor protection in industrial control panels, motor control centers, conveyors, pumps and HVAC systems. Key specifications include thermal adjustment range 90–150 A; overload tripping class 10; rated operational voltage up to 1000 V AC; control circuit current rating 5 A; auxiliary contacts 1 NO + 1 NC; supply voltage range 17–32 V; network frequency 50/60 Hz; phase protection with phase loss and phase imbalance detection; temperature compensation from −20°C to +70°C; surge withstand voltage of 4 kV; and compliance with IEC 60947-4-1. Common replacements include Schneider Electric LR9F5367, LR9F5371, and LR9F5363.