The Schneider Electric LRD08 is a TeSys LRD differential thermal overload relay with a 2.5-4 A adjustment range, designed for motor protection in industrial applications. It provides Class 10A tripping performance per IEC 60947-4-1 and mounts directly below compatible TeSys D contactors including LC1D09, LC1D12, LC1D18, LC1D25, LC1D32, and LC1D38.

Technical specifications:

Commercial reference: LRD08
Manufacturer: Schneider Electric
EAN: 3389110346787
Series / range: TeSys Deca
Product type: Differential thermal overload relay
Application: Motor protection
Thermal overload adjustment: 2.5-4 A
Tripping class: Class 10A per IEC 60947-4-1
Tripping threshold: 1.14 +/- 0.06 Ir per IEC 60947-4-1
Phase loss sensitivity: Trips at 130% of Ir in two phases, last phase at 0
Network type: AC / DC
Network frequency: 0-400 Hz
Rated voltage [Ue]: 690 V AC per IEC 60947-4-1
Rated insulation voltage [Ui]: 690 V per IEC 60947-4-1; 600 V per UL and CSA
Rated impulse withstand voltage [Uimp]: 6 kV
Auxiliary contact: 1 NO + 1 NC
Thermal current in air [Ith]: 5 A (control circuit)
Mounting: Below contactor; plate or DIN rail with accessories
Connection type: Screw terminal blocks
Tightening torque: 1.7 N.m (power and control circuits)
Dimensions (W x H x D): 45 x 66 x 70 mm
Weight: 0.124 kg
IP protection: IP20 per IEC 60529
Operating temperature: -20-60C
Storage temperature: -60-70C
Standards: EN/IEC 60947-4-1, EN/IEC 60947-5-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, GB/T 14048.4, EN 50495
Certifications: IEC, UL, CSA, CCC, EAC, BV, RINA, DNV-GL, ATEX, UKCA

Features and benefits:

Mounts directly below TeSys D contactors for compact, integrated motor starter assemblies
Built-in phase loss sensitivity detects single-phasing and trips at 130% of Ir
Temperature compensation across -20-60C maintains consistent tripping accuracy
Red stop and blue reset push buttons for straightforward manual control and reset
Broad global certification including ATEX, UKCA, DNV-GL, and LROS for marine and hazardous environments

Applications: