Schneider Electric LR9F7375 Thermal Overload Relay LR9F7375

Description:

The Schneider Electric LR9F7375 Thermal Overload Relay is used in industrial automation systems to protect electric motors from overheating and overload conditions. This relay is part of the Schneider Electric TeSys LR9F series and is designed to monitor motor current and disconnect the circuit when excessive load conditions are detected. It is typically mounted directly to compatible TeSys F contactors and used in motor control centers and industrial control panels. Maintenance teams and system integrators frequently use this overload relay for motor protection, replacement of failed protection devices, and installation in high-power motor starter assemblies within industrial automation systems.

Applications:

The Schneider Electric LR9F7375 overload relay is commonly used in industrial environments including manufacturing production lines, heavy machinery, conveyor systems, compressors, pumps, HVAC equipment, and large motor control centers where dependable motor protection is required to prevent overheating, equipment damage, and unexpected downtime.

Technical Specifications:

• Manufacturer: Schneider Electric
• Model: LR9F7375
• Product Type: Electronic Thermal Overload Relay
• Series: TeSys LR9F
• Current Adjustment Range: 200–330 A
• Overload Trip Class: Class 10
• Supply Voltage: 24 V DC
• Network Frequency: 50/60 Hz
• Auxiliary Contacts: 1 NO + 1 NC
• Control Circuit Current: 5 A thermal rating
• Rated Operational Voltage: Up to 1000 V AC
• Impulse Withstand Voltage: 8 kV
• Mounting Type: Direct mounting on TeSys F contactors or panel mount
• Protection Rating: IP20
• Operating Temperature Range: −20°C to 55°C
• Function: Motor overload protection with adjustable thermal settings and phase failure sensitivity

Common Replacements:

• Schneider Electric LR9G500
• Schneider Electric LR9F5369
• ABB EF370-500