ОПИСАНИЕ ПРОДУКТА
SCHNEIDER ELECTRIC LRD318L - Thermal Overload Relay
The SCHNEIDER ELECTRIC LRD318L is a TeSys LRD series thermal overload relay engineered for robust protection of AC motors against overload, phase failure, and prolonged starting times. This electromechanical protection device integrates seamlessly into industrial motor control circuits, providing essential safety and operational reliability for applications such as pumping stations, HVAC systems, and conveyor machinery. It features a differential mechanism and temperature compensation for consistent performance across varying environmental conditions.
Technical Specifications:
- SERIES/FAMILY: TeSys LRD
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- OPERATIONAL CURRENT RANGE: 12-18 A
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690 VAC (Power Circuit)
- RATED INSULATION VOLTAGE (Ui): 690 VAC (Power Circuit), 600 VAC (UL/CSA)
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6 kV
- FREQUENCY: 50/60 Hz
- TRIP CLASS: Class 10A (IEC 60947-4-1)
- AUXILIARY CONTACTS: 1 NO (97-98), 1 NC (95-96)
- MECHANICAL/PHYSICAL:
- RESET TYPE: Manual or Automatic
- ADJUSTMENT: Rotary Dial
- INTERFACE/CONTROL:
- CONTROL CIRCUIT CONTACTS: 1 NO + 1 NC for signaling and tripping
- INDICATORS: Trip Indicator
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IP20 (Casing)
- OPERATING TEMPERATURE: -20 to 60 °C
- STORAGE TEMPERATURE: -60 to 70 °C
- COOLING METHOD: Natural Convection
- MOUNTING STYLE: Direct mounting under TeSys D contactors (LC1D09-D38) optional separate mounting with terminal block
- COMPATIBILITY/APPLICATION:
- COMPATIBLE CONTACTORS: SCHNEIDER ELECTRIC TeSys D contactors (LC1D09, LC1D12, LC1D18, LC1D25, LC1D32, LC1D38)
- APPLICATIONS: Protection of 3-phase and 1-phase AC motors in industrial machinery, pumps, fans, compressors, and conveyor systems.