Schneider Electric LR9F5371 Telemecanique/ Schneider Electric Solid State Overload Relay 575VAC 132~220A LR9F5371

Description:

The Schneider Electric LR9F5371 Solid State Overload Relay is an electronic motor protection relay used in industrial control systems to protect high-power three-phase motors from overload and phase failure. Commonly installed with TeSys F contactors in motor starters, compressors, conveyors, and heavy-duty machinery where reliable motor protection is required. Maintenance teams and system integrators use this relay for replacement, retrofit, and installation to ensure safe operation and prevent equipment damage.

Applications:

The Schneider Electric LR9F5371 relay is widely used in industrial automation and motor control environments to protect large motors in demanding applications. It is deployed in manufacturing plants, material handling systems, HVAC systems, and processing facilities to monitor motor current and disconnect circuits during overload or fault conditions. With electronic protection and adjustable current settings, it ensures accurate protection and extends motor life in high-load industrial operations.

Technical Specifications:

• Manufacturer: Schneider Electric
• Model / Part Number: LR9F5371
• Product Type: Electronic Thermal Overload Relay
• Series: TeSys LRF
• Current Range: 132–220 A adjustable
• Trip Class: Class 10 (IEC 60947-4-1)
• Rated Operational Voltage: Up to 1000 VAC
• Supply Voltage: 17–32 V (control circuit)
• Frequency: 50/60 Hz
• Auxiliary Contacts: 1 NO + 1 NC
• Mounting: Direct on contactor or panel mount
• Compatibility: TeSys F contactors (LC1F185–LC1F265 range)
• Protection Features: Overload, phase loss, phase imbalance
• Reset Type: Manual reset with test button
• Protection Rating: IP20
• Operating Temperature: -20°C to 55°C
• Application: High-current motor protection

Common Replacements:

• Schneider Electric LR9G225
• Schneider Electric LR9F5369
• Schneider Electric LR9F5571