OPIS PRODUKTU
SCHNEIDER ELECTRIC LRD-03 - Thermal Overload Relay
This device is a SCHNEIDER ELECTRIC TeSys LRD thermal overload relay, engineered for the protection of three-phase AC motors and circuits against overload, phase failure, and prolonged starting conditions. It integrates directly with TeSys D contactors, providing essential thermal protection in industrial control panels and motor control centers. The relay utilizes bimetallic strips for precise current sensing and offers adjustable trip settings for application-specific motor protection.
Technical Specifications:
- SERIES/FAMILY: TeSys LRD
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 0.25 - 0.4 A
- NUMBER OF POLES: 3
- OPERATIONAL VOLTAGE: Up to 690 VAC (main circuit)
- AUXILIARY CONTACT RATING: 1 NO + 1 NC, rated for AC-15 (6A/240VAC) and DC-13 (3A/24VDC) applications
- MECHANICAL/PHYSICAL:
- MOUNTING: Direct mounting under SCHNEIDER ELECTRIC TeSys D contactors (LC1D09 to LC1D38)
- RESET FUNCTION: Manual, with trip indicator
- TERMINALS: Screw clamp
- FORM FACTOR: Compact, modular for panel integration
- INTERFACE/CONTROL:
- PROTECTION TYPE: Thermal Overload, Phase Failure
- AUXILIARY CONTACTS: 1 Normally Open (NO), 1 Normally Closed (NC) for signaling and control circuit integration
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals protected against solid objects >12.5mm)
- OPERATING TEMPERATURE: -20 to 60 degrees C
- STORAGE TEMPERATURE: -40 to 70 degrees C
- COOLING METHOD: Natural convection
- MOUNTING STYLE: Frontal, direct connection to contactor
- COMPATIBILITY/APPLICATION:
- COMPATIBLE CONTACTORS: SCHNEIDER ELECTRIC TeSys D series (LC1D09 to LC1D38)
- TARGET APPLICATIONS: Motor control centers, industrial machinery, HVAC systems, pumping stations, conveyor systems, general industrial motor protection
