DESCRIZIONE PRODOTTO
SCHNEIDER ELECTRIC LT4730M7A - Electronic Thermal Overload Relay
The SCHNEIDER ELECTRIC LT4730M7A is an electronic thermal overload relay from the TeSys LT47 series, engineered for precise protection of 3-phase AC motors against overload, phase failure, and prolonged starting conditions. This device integrates advanced thermal protection algorithms with a 24V DC control circuit, making it suitable for integration into industrial control panels for applications such as pumping, conveying, and general machinery. It provides reliable motor safeguarding by monitoring current and tripping the main contactor upon detection of fault conditions.
Technical Specifications:
- SERIES/FAMILY: TeSys LT47
- COMPONENT TYPE: Electronic Thermal Overload Relay
- ELECTRICAL SPECS:
- CURRENT ADJUSTMENT RANGE: 23-32 A
- RATED OPERATIONAL VOLTAGE (Ue): Up to 690V AC (main power circuit)
- CONTROL CIRCUIT VOLTAGE: 24V DC
- RATED INSULATION VOLTAGE (Ui): 690V AC (main circuit), 250V AC (control circuit)
- RATED IMPULSE WITHSTAND VOLTAGE (Uimp): 6 kV
- FREQUENCY: 50/60 Hz
- PHASE PROTECTION: 3-phase
- MECHANICAL/PHYSICAL:
- RESET TYPE: Manual reset
- MOUNTING: 35mm DIN rail or screw mounting
- TERMINALS: Screw clamp terminals
- INTERFACE/CONTROL:
- AUXILIARY CONTACTS: 1 Normally Open (NO) + 1 Normally Closed (NC)
- TRIP INDICATION: Local mechanical indicator
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP40 (front face)
- OPERATING TEMPERATURE: -20°C to +60°C
- STORAGE TEMPERATURE: -40°C to +85°C
- COOLING: Natural convection
- COMPATIBILITY/APPLICATION: Protection of 3-phase AC motors, industrial machinery, pumping systems, conveyors, HVAC systems, and other applications requiring precise motor overload and phase failure protection.
