Why Choose the Lovato BFA05070024 Star-Delta Starter?
The Lovato BFA05070024 is an electromechanical star-delta starter designed for starting compatible three-phase squirrel-cage induction motors with reduced starting current. The coordinated starter assembly uses Lovato contactors arranged to start the motor with its windings connected in star before transferring them to delta for normal running.
This model is rated at 85 A and is intended for industrial motor-starting applications where direct-on-line starting would produce an undesirably high current demand. The star-delta starting method reduces the voltage applied to each motor winding during the initial acceleration period, helping reduce starting current and associated electrical stress on the supply.
The BFA05070024 uses a 24 V AC 50/60 Hz control supply, making it suitable for control panels and machinery using low-voltage AC control circuits. Its coordinated electromechanical construction provides a practical solution for pumps, fans, compressors and other machinery fitted with motors suitable for star-delta starting.
Key Advantages
- Purpose-designed star-delta starter for three-phase motors.
- 85 A rating for compatible industrial motor applications.
- 24 V AC 50/60 Hz control voltage.
- Reduces motor starting current compared with direct-on-line starting.
- Coordinated contactor arrangement simplifies star-delta control-panel construction.
- Suitable for pumps, fans, compressors and other industrial machinery.
Key Features
- Lovato BFA series electromechanical starter.
- Star-delta starting configuration.
- Rated current of 85 A.
- 24 V AC control supply.
- 50/60 Hz control frequency.
- Star and delta contactor arrangement for reduced-current starting.
- Designed for compatible three-phase squirrel-cage motors.
- Suitable for integration into industrial motor-control panels.
Reduced-Current Starting for Three-Phase Motors
During star-delta starting, the motor windings are initially connected in star, reducing the voltage across each winding compared with normal delta operation. This reduces starting current and starting torque, helping limit electrical demand and mechanical stress where the driven load is suitable for reduced-torque acceleration.
After the motor accelerates, the starter changes the winding configuration from star to delta so the motor can operate under its normal running conditions. The Lovato BFA05070024 provides the coordinated electromechanical switching arrangement required for this process and is intended for motors specifically designed and connected for star-delta starting.
Typical Applications
- Industrial pumps and pumping systems.
- Fans and ventilation equipment.
- Compressors with suitable unloaded starting characteristics.
- Industrial processing machinery.
- Conveyors suitable for reduced-torque starting.
- OEM machinery and motor-control panels.
