OPIS PRODUKTU
SCHNEIDER ELECTRIC LRD-21C - Thermal Overload Relay
This device is a TeSys LRD series thermal overload relay engineered for the protection of AC circuits and three-phase motors against overloads, phase failure, and prolonged starting times. It integrates directly with TeSys D contactors, providing robust thermal protection for industrial motor control applications, including pumps, fans, conveyors, and machine tools. The relay incorporates differential phase loss detection and features an adjustable current setting range.
Technical Specifications:
- SERIES/FAMILY: TeSys LRD
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 17-25 A
- THERMAL PROTECTION CLASS: Class 10A
- RATED OPERATIONAL VOLTAGE: Up to 690V AC (Power Circuit)
- RATED INSULATION VOLTAGE: 690V AC (Power Circuit), 600V AC (Control Circuit)
- RATED IMPULSE WITHSTAND VOLTAGE: 6 kV
- MECHANICAL/PHYSICAL:
- RESET FUNCTION: Manual and Automatic
- TRIP INDICATION: Yes
- TEST FUNCTION: Yes
- INTERFACE/CONTROL:
- CONTROL CIRCUIT TERMINALS: Screw Clamp
- AUXILIARY CONTACTS: 1 NO + 1 NC
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IPXXB (Front Face)
- MOUNTING STYLE: Direct mounting under TeSys D contactors (LC1D09-LC1D38), or standalone with adapter
- OPERATING TEMPERATURE: -20 to 60 degrees C
- COMPATIBILITY/APPLICATION: Motor protection in industrial control panels, suitable for pumps, fans, conveyors, and general machinery. Compatible with SCHNEIDER ELECTRIC TeSys D contactors.
