TELEMECANIQUE LR9-F5371 relay

Thermal protection for motors rated 90–110 kW @ 400V

Protection against phase failure, imbalance, long start times, stalled rotor

Suitable for 1-phase and 3-phase motors

Industrial motor control systems

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The LR9-F5371 is an electronic thermal overload relay from Schneider Electric’s TeSys LRF series. It provides adjustable protection in the 132–220 A range and features Class 10 tripping characteristics. Typically used with LC1F185...LC1F265 contactors.

Thermal setting range: 132–220 A

Overload class: Class 10 (IEC 60947-4)

Rated insulation voltage: Ui = 1000 V AC

Impulse withstand voltage: Uimp = 8 kV

Frequency: 50/60 Hz

Contacts: 1 NO + 1 NC

Thermal current (Ith): 5 A (control circuit)

Tripping threshold: 1.12 ± 0.06 In

Phase failure sensitivity: 4 s ± 20%

Mounting: Direct on contactor or with LA7F901 plate

Dimensions: 101 × 115 × 123.5 mm

Weight: ~0.95 kg

IP rating: IP20

Operating temperature: -20…55 °C

Storage temperature: -40…85 °C

Certifications: IEC, UL, CSA, CCC, Marine

Environmental compliance: RoHS, REACh, Green Premium

Data Sheet