LR3D3557 - Schneider Electric TeSys LRD Thermal Overload Relay 37-50A Class 20 3-Phase 1000V IEC

LR3D3557

LR3D3557 is a Schneider Electric TeSys LRD thermal overload relay designed for motor protection with a thermal current range of 37-50A and tripping class 20.This relay protects 3-phase motors up to 22 kW at 400V and supports a power circuit voltage up to 1000V. It is suitable for use with unbalanced loads and complies with IEC 60947-4-1 standards. The LR3D3557 is compatible with LC1D80 and LC1D95 contactor series and offers reliable thermal protection with a non-differential trip unit.

Key Specifications
• Amperage range: 37-50A
• Voltage rating: 1000V power circuit
• Motor power rating: 22 kW @ 400V
• Tripping class: 20
• Phase: 3-phase motor protection
• Standards: IEC 60947-4-1
• Compatible with LC1D80, LC1D95 contactors
• Thermal overload relay type: Non-differential
• Operating temperature range: -20 to 60 °C without derating
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Specifications

• Part Number: LR3D3557
• Manufacturer : Schneider Electric
• Brand : Schneider Electric
• Category : Motor Control
• Item Subcategory : Overload Relay



Product Data

• UPC : 060648533586
• GTIN : 03606485335865
• Country of Origin : France
• Dimensions : 75 mm
• Weight : 1.17
• Certification : EN/IEC 60947-4-1 || EN/IEC 60947-5-1 || UL 60947-4-1 || UL 60947-5-1 || CSA C22.2 No 60947-4-1 || CSA C22.2 No 60947-5-1 || GB/T 14048.4 || GB/T 14048.5