DESCRIZIONE PRODOTTO
SCHNEIDER ELECTRIC LT4730BA - Thermal Overload Relay
The SCHNEIDER ELECTRIC LT4730BA is an electromechanical thermal overload relay from the TeSys LT47 series, engineered for robust motor protection against overcurrents and phase unbalance. This device integrates directly into industrial motor control circuits, providing essential safeguarding for AC motors in applications such as pumping systems, conveyor lines, HVAC installations, and general machinery, adhering to IEC 60947 standards for low-voltage switchgear and controlgear. Its primary function is to interrupt the motor circuit upon detection of sustained overload conditions, preventing motor damage and ensuring operational continuity.
Technical Specifications:
- SERIES/FAMILY: TeSys LT47
- COMPONENT TYPE: Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 23-30 A
- TRIPPING CLASS: Class 10
- RATED OPERATIONAL VOLTAGE: Up to 690 VAC
- RATED INSULATION VOLTAGE: 690 VAC
- MECHANICAL/PHYSICAL:
- RESET TYPE: Manual and Automatic
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- MOUNTING: Direct mounting under TeSys D contactors or independent with adapter
- INTERFACE/CONTROL:
- PROTECTION FUNCTION: Thermal overload, Phase failure
- CONTROL CIRCUIT VOLTAGE: Dependent on application, typically 24-600V AC/DC for auxiliary contacts
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (Terminals), IP40 (Front Face)
- OPERATING TEMPERATURE: -20 to 60 °C
- MOUNTING STYLE: Direct mounting to compatible contactors or DIN rail/panel mount with adapter
- COMPATIBILITY/APPLICATION:
- COMPATIBLE WITH: SCHNEIDER ELECTRIC TeSys D contactors (e.g., LC1D series)
- APPLICATION: Protection of three-phase and single-phase AC motors in industrial machinery, pumps, fans, compressors, and material handling systems
