OPIS PRODUKTU
SCHNEIDER ELECTRIC LR3D106 - Thermal Overload Relay
The SCHNEIDER ELECTRIC LR3D106 is an electromechanical thermal overload relay from the TeSys LR3D series, engineered for robust motor protection against overloads, phase failure, and prolonged starting times. This device integrates directly with TeSys D contactors, providing essential thermal protection for three-phase AC motors in industrial control applications such as pumping systems, conveyor belts, HVAC units, and general machinery requiring reliable motor circuit safeguarding. Its bimetallic strip mechanism ensures precise and repeatable trip characteristics.
Technical Specifications:
- SERIES/FAMILY: TeSys LR3D
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 6-10 A
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690 V AC 50/60 Hz
- RATED INSULATION VOLTAGE (Ui): 690 V
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6 kV
- AUXILIARY CONTACT RATING: 1 NO + 1 NC 3 A @ 400 V AC-15 0.22 A @ 125 V DC-13
- MECHANICAL/PHYSICAL:
- MOUNTING: Direct mounting under TeSys D contactors (LC1D09-D38 range)
- RESET TYPE: Manual or Automatic
- TRIP INDICATION: Yes
- FORM FACTOR: Compact, modular unit for panel integration
- INTERFACE/CONTROL:
- AUXILIARY CONTACTS: 1 Normally Open (NO) and 1 Normally Closed (NC) for control circuit integration
- CONTROL TYPE: Electromechanical bimetallic trip mechanism
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP00 (power circuit)
- OPERATING TEMPERATURE: -20 to 60 °C
- STORAGE TEMPERATURE: -60 to 70 °C
- ALTITUDE: Up to 3000 m without derating
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION:
- COMPATIBILITY: SCHNEIDER ELECTRIC TeSys D contactors (LC1D09, LC1D12, LC1D18, LC1D25, LC1D32, LC1D38)
- APPLICATION: Motor protection in industrial control panels, HVAC systems, pumping stations, material handling equipment, and general industrial machinery.
