DESCRIZIONE PRODOTTO
SCHNEIDER ELECTRIC LRD21L - Thermal Overload Relay
The SCHNEIDER ELECTRIC LRD21L is a 3-pole thermal overload relay from the TeSys LRD series, engineered for robust motor protection against overload and phase failure in industrial control applications. Utilizing bimetallic thermal sensing technology, this device provides adjustable current protection for AC motors, integrating directly with TeSys D contactors for compact and reliable motor starter solutions in systems such as HVAC, pumping, and material handling. It ensures operational continuity and equipment longevity by preventing thermal damage to motors.
Technical Specifications:
- SERIES/FAMILY: TeSys LRD
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- NOMINAL CURRENT RANGE: 17-25 A
- POLES: 3-Pole
- OPERATIONAL VOLTAGE: Up to 690 VAC (Main Circuit)
- CONTROL CIRCUIT VOLTAGE: Up to 690 VAC/DC (Auxiliary Contacts)
- TRIPPING CLASS: Class 10A
- MECHANICAL/PHYSICAL:
- RESET TYPE: Manual/Automatic
- PROTECTION FUNCTION: Overload, Phase Loss
- INTERFACE/CONTROL:
- AUXILIARY CONTACTS: 1 NO + 1 NC
- INDICATORS: Trip Indicator
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IP20 (Casing)
- MOUNTING STYLE: Direct mounting under TeSys D contactors (LC1D25, LC1D32, LC1D38), or separate with terminal block
- OPERATING TEMPERATURE: -20 to 60 degrees C
- COMPATIBILITY/APPLICATION:
- COMPATIBLE CONTACTORS: TeSys D series (LC1D25, LC1D32, LC1D38)
- APPLICATION: Motor protection in industrial control panels, HVAC systems, pumping stations, conveyor systems, and general machinery requiring thermal overload and phase loss protection.
