OPIS PRODUKTU
SCHNEIDER ELECTRIC LRD21 - Thermal Overload Relay
The SCHNEIDER ELECTRIC LRD21 is a 3-pole thermal overload relay from the TeSys LRD series, engineered for robust motor protection against overloads, phase failure, and prolonged starting conditions. This electromechanical device integrates seamlessly with TeSys D contactors, providing essential safeguarding for industrial motors in applications such as pumping, ventilation, and material handling systems. It ensures operational continuity and prevents equipment damage by accurately monitoring motor current.
Technical Specifications:
- SERIES/FAMILY: TeSys LRD
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 17-25 A
- TRIP CLASS: Class 10
- RATED INSULATION VOLTAGE (Ui): 690 VAC
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6 kV
- NUMBER OF POLES: 3
- MECHANICAL/PHYSICAL:
- RESET TYPE: Manual or Automatic
- AUXILIARY CONTACTS: 1 NO + 1 NC
- INTERFACE/CONTROL:
- CONTROL CIRCUIT RATED OPERATIONAL CURRENT: 0.125 A at 600 V AC-15, 0.125 A at 600 V DC-13
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20 to 60 °C
- MOUNTING STYLE: Direct mounting under TeSys D contactors (LC1D09-LC1D38) or stand-alone with terminal block
- COMPATIBILITY/APPLICATION:
- COMPATIBLE CONTACTORS: TeSys D series (LC1D09, LC1D12, LC1D18, LC1D25, LC1D32, LC1D38)
- TARGET APPLICATIONS: Industrial motor protection, HVAC systems, pumping stations, conveyor systems, general machinery
