OPIS PRODUKTU
SCHNEIDER ELECTRIC LRD33676 - Thermal Overload Relay
The SCHNEIDER ELECTRIC LRD33676 is a TeSys LRD series thermal overload relay engineered for robust motor protection in industrial control systems. It provides precise thermal-magnetic protection against overloads, phase failure, and prolonged starting times for AC motors, ensuring operational continuity and equipment longevity. This component is critical for safeguarding machinery in applications such as pumping, ventilation, conveying, and general industrial motor control circuits.
Technical Specifications:
- SERIES/FAMILY: TeSys LRD
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 37-50 A
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690 V AC 50/60 Hz (power circuit)
- RATED INSULATION VOLTAGE (Ui): 690 V AC (power circuit), 600 V AC (control circuit)
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6 kV
- TRIPPING CLASS: Class 10A (IEC 60947-4-1)
- PHASE: 3-phase
- MECHANICAL/PHYSICAL:
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- RESET TYPE: Manual or Automatic
- INTERFACE/CONTROL:
- CONTROL CIRCUIT RATING: AC-15 (3A @ 400V), DC-13 (0.22A @ 125V)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP20 (casing)
- OPERATING TEMPERATURE: -20 to 60 °C
- STORAGE TEMPERATURE: -60 to 70 °C
- MOUNTING STYLE: Direct mounting under TeSys D contactors (e.g., LC1D40A, LC1D50A, LC1D65A) or separate mounting with adapter.
- COMPATIBILITY/APPLICATION:
- COMPATIBILITY: TeSys D contactors
- APPLICATION: Overload and phase failure protection for AC motors in industrial machinery, HVAC systems, pumps, fans, and conveyors.
