OPIS PRODUKTU
SCHNEIDER ELECTRIC LRD3361 - Thermal Overload Relay
The SCHNEIDER ELECTRIC LRD3361 is a TeSys LRD series thermal overload relay engineered for the electromechanical protection of three-phase AC motors against overloads, phase failure, and phase unbalance. This device integrates directly with TeSys D contactors, providing essential thermal protection for industrial motor control applications in machinery, pumps, and conveyor systems. It ensures operational continuity and prevents motor damage by initiating a trip in the control circuit upon detection of excessive current draw.
Technical Specifications:
- SERIES/FAMILY: TeSys LRD
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- NOMINAL OPERATING VOLTAGE: Up to 690V AC (main circuit)
- CONTROL CIRCUIT VOLTAGE: Up to 690V AC
- CURRENT ADJUSTMENT RANGE: 48-65A
- PHASE: 3-phase
- FREQUENCY: 50/60 Hz
- AUXILIARY CONTACTS: 1 NO + 1 NC
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6 kV
- MECHANICAL/PHYSICAL:
- TRIP CLASS: Class 10A
- RESET TYPE: Manual and Automatic
- MOUNTING: Direct under TeSys D contactors (LC1D40A, LC1D50A, LC1D65A) or standalone with LAD7B106 terminal block
- INTERFACE/CONTROL:
- SIGNALING: Auxiliary contacts for trip status indication to control circuits
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP20 (casing)
- OPERATING TEMPERATURE: -20 to 60 °C
- STORAGE TEMPERATURE: -60 to 70 °C
- COOLING METHOD: Natural convection
- COMPATIBILITY/APPLICATION: Protection of AC motors in conjunction with TeSys D contactors suitable for industrial machinery, pumps, fans, and conveyors.
