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BFA05070400 Lovato STAR-DELTA STARTER 85A 400/50-60
Lovato BFA05070400 open-frame star-delta starter rated at 85 A and 45 kW at 400 V with 400 V AC 50/60 Hz contactor coils for reduced-current starting of three-phase motors.
£943.51
Why Choose the Lovato BFA05070400 Star-Delta Starter?
The Lovato BFA05070400 is a complete open-frame star-delta starter designed for controlled starting of three-phase induction motors. Rated for a maximum IEC operating current of 85 A at up to 440 V, it provides a coordinated electromechanical starting solution for industrial motors where reduced starting current is required.
The BFA05070400 uses a 400 V AC 50/60 Hz control voltage and is rated for motors up to 45 kW at 400 V. The starter incorporates three Lovato contactors in a coordinated star-delta arrangement, using two BF5000A contactors and one BF3200A contactor, together with the required auxiliary contacts for the starting sequence.
Designed for starting times of up to 12 seconds and a maximum of 30 operations per hour, the BFA05070400 provides a factory-coordinated platform for industrial motor starting. A thermal overload relay is not supplied as standard; Lovato specifies the RF82 thermal overload relay for completing the motor overload protection arrangement.
Key Advantages
- Complete star-delta starter assembly for three-phase motors.
- Maximum IEC operating current of 85 A at ≤440 V.
- Suitable for motors up to 45 kW at 400 V.
- 400 V AC 50/60 Hz contactor control voltage.
- Star-delta starting reduces motor starting current compared with direct-on-line starting.
- Factory-coordinated Lovato contactors and auxiliary contacts simplify panel integration.
- Designed for starting times up to 12 seconds and up to 30 operations per hour.
Key Features
- Lovato BFA050 electromechanical starter series.
- Open-frame star-delta starter.
- 85 A maximum IEC operating current at ≤440 V.
- 45 kW motor rating at 400 V.
- 400 V AC 50/60 Hz coil voltage.
- Supplied with BF5000A / BF5000A / BF3200A contactors.
- Supplied with BFX1020 / BFX1011 / BFX1011 auxiliary contacts.
- Designed for use with a separately purchased RF82 thermal overload relay.
- Maximum starting time of 12 seconds.
- Maximum operating frequency of 30 operations per hour.
Reduced-Current Starting for Industrial Motors
Star-delta starting reduces the electrical and mechanical stress associated with starting suitable three-phase induction motors. During starting, the motor windings are initially connected in star, reducing the voltage applied to each winding and consequently reducing starting current and starting torque. After the preset acceleration period, the starter changes the motor connection to delta for normal running operation.
The Lovato BFA05070400 combines the contactors and auxiliary contacts required for this sequence into a coordinated open-frame assembly. With an 85 A maximum IEC operating current and 45 kW rating at 400 V, it is suited to substantial industrial motor applications where star-delta starting is appropriate. Motor overload protection is completed by selecting the appropriate RF82 thermal overload relay separately.
Typical Applications
- Three-phase induction motor starting.
- Industrial pumps and pumping systems.
- Fans and ventilation equipment.
- Compressors with suitable starting characteristics.
- Conveyors and material handling systems.
- Industrial machinery and production equipment.
- Motor control centres and electrical control panels.
Technical Specifications
| Manufacturer | Lovato Electric |
|---|---|
| Series | BFA050 |
| Model | BFA05070400 |
| Product type | Star-delta starter |
| Construction | Open frame |
| Maximum operating current at ≤440 V | 85 A |
| Control / contactor coil voltage | 400 V AC |
| Control frequency | 50/60 Hz |
| IEC motor power at 230 V | 25 kW |
| IEC motor power at 400 V | 45 kW |
| IEC motor power at 440 V | 45 kW |
| IEC motor power at 500 V | 59 kW |
| UL/CSA motor rating at 480 V | 60 HP |
| Maximum starting time | 12 s |
| Maximum operating frequency | 30 operations/hour |
| Contactors supplied | 2 × BF5000A and 1 × BF3200A |
| Auxiliary contacts supplied | BFX1020 / BFX1011 / BFX1011 |
| Thermal overload relay supplied | No |
| Specified thermal overload relay | RF82, purchased separately |
| Main circuit connection | Screw connection |
| Auxiliary/control circuit connection | Screw connection |
| ETIM classification | EC001037 - Motor starter/Motor starter combination |
| EAN13 | 8013975245316 |
| HS code | 85371098 |
| Country of origin | Italy |
Frequently Asked Questions
What is the Lovato BFA05070400 used for?
The BFA05070400 is a complete open-frame star-delta starter used for reduced-current starting of suitable three-phase induction motors, with a maximum IEC operating current of 85 A.
What motor power can the Lovato BFA05070400 control?
The BFA05070400 is rated for IEC motor powers of 25 kW at 230 V, 45 kW at 400 V, 45 kW at 440 V and 59 kW at 500 V.
What control voltage does the BFA05070400 require?
The BFA05070400 uses a 400 V AC 50/60 Hz control voltage for its contactor coils.
Does the Lovato BFA05070400 include an overload relay?
No. The thermal overload relay is not supplied as standard. Lovato specifies an RF82 thermal overload relay, which must be selected and purchased separately to suit the motor protection requirements.
What contactors are included in the BFA05070400?
The BFA05070400 is supplied with two Lovato BF5000A contactors and one BF3200A contactor, together with BFX1020 and BFX1011 auxiliary contacts required for the coordinated star-delta starter arrangement.
Trusted Motor Starting Solutions from Lovato Electric
Lovato Electric BFA star-delta starters provide coordinated electromechanical motor starting solutions for industrial applications, combining compatible BF contactors and control accessories into practical assemblies designed to reduce starting current and simplify motor control panel integration.
