OPIS PRODUKTU
SCHNEIDER ELECTRIC LR3D332 - Thermal Overload Relay
The SCHNEIDER ELECTRIC LR3D332 is a 3-pole bimetallic thermal overload relay from the TeSys LR3D series, engineered for precise AC motor protection against overload and phase failure. This device integrates directly with TeSys D contactors or mounts standalone, providing critical thermal sensing and trip functionality for industrial motor control applications. It is suitable for deployment in systems requiring reliable motor protection, including pumping, ventilation, and conveying machinery.
Technical Specifications:
- SERIES/FAMILY: TeSys LR3D
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- OPERATIONAL CURRENT RANGE: 23-32A (Adjustable)
- POLES: 3-Pole
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690V AC
- RATED INSULATION VOLTAGE (Ui): 690V AC
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6kV
- TRIPPING CLASS: Class 10A
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- MECHANICAL/PHYSICAL:
- RESET TYPE: Manual or Automatic (Selectable)
- INTERFACE/CONTROL:
- CONTROL CIRCUIT VOLTAGE: Dependent on associated contactor and application
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IP20 (Casing)
- MOUNTING STYLE: Direct mounting under TeSys D contactors, Plate mounting, DIN Rail mounting (with optional accessories)
- OPERATING TEMPERATURE RANGE: -20 to 60 degrees C
- COMPATIBILITY/APPLICATION:
- COMPATIBILITY: TeSys D contactors (e.g., LC1D40A, LC1D50A, LC1D65A, LC1D80, LC1D95)
- PRIMARY FUNCTION: Protection of AC motors against overload, phase failure, and long starting times
- TYPICAL APPLICATIONS: Industrial motor control circuits, HVAC systems, pumping stations, conveyor systems, machine tools, material handling equipment
