ОПИСАНИЕ ПРОДУКТА
SCHNEIDER ELECTRIC LR3D14 - Thermal Overload Relay
The SCHNEIDER ELECTRIC LR3D14 is a TeSys LR3D series thermal overload relay engineered for the electromechanical protection of AC motors against overload, phase failure, and prolonged starting conditions. It provides Class 10A thermal protection for 3-phase applications, integrating directly with TeSys D contactors or mounting independently. This device is critical for maintaining operational integrity in industrial motor control circuits, including pumps, fans, conveyors, and general machinery.
Technical Specifications:
- SERIES/FAMILY: TeSys LR3D
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 7-10 A
- THERMAL PROTECTION CLASS: Class 10A
- PHASE: 3-Phase
- AUXILIARY CONTACTS: 1 NO + 1 NC
- RATED INSULATION VOLTAGE (Ui): 690V AC (IEC 60947-4-1)
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6 kV
- MECHANICAL/PHYSICAL:
- RESET TYPE: Manual or Automatic
- TRIP INDICATION: Yes
- INTERFACE/CONTROL:
- CONTROL CIRCUIT TERMINALS: Screw clamp terminals
- POWER CIRCUIT TERMINALS: Screw clamp terminals
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (IEC 60529)
- OPERATING TEMPERATURE: -20 to +60 °C
- MOUNTING STYLE: Direct mounting under TeSys D contactor or stand-alone with terminal block
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION:
- COMPATIBLE CONTACTORS: TeSys D series (e.g., LC1D09 to LC1D38)
- APPLICATION: Overload and phase failure protection for AC motors in industrial control systems