Why Choose the Lovato BFK11500A048 Contactor for Power Factor Correction?
The Lovato BFK11500A048 is a specialised contactor for power factor correction (PFC) capacitor switching, designed for reliable connection and disconnection of capacitor banks in industrial electrical installations. As part of the Lovato BFK series, it is specifically engineered for capacitor-duty applications where conventional contactors can be subjected to severe inrush currents.
The BFK11500A048 is rated for capacitor banks up to 75 kvar and incorporates the switching arrangement required for power factor correction applications. BFK contactors use early-make auxiliary contacts together with current-limiting resistors to reduce the high transient current generated when capacitors are energised, helping protect the main contacts and extend operational life.
This model features a 48 V AC 50/60 Hz control coil, making it suitable for PFC panels and automatic capacitor-bank systems using a 48 V AC control circuit. Its purpose-designed capacitor-switching construction makes it an appropriate choice for industrial plants, commercial installations and switchboards where automatic reactive-power compensation is required.
Key Advantages
- Purpose-designed contactor for power factor correction capacitor banks.
- Suitable for capacitor switching applications up to 75 kvar.
- 48 V AC 50/60 Hz control coil for compatible control circuits.
- Early-make contacts and current-limiting resistors reduce capacitor inrush current.
- Helps reduce electrical and mechanical stress on the main contact system.
- Designed for automatic and stepped power factor correction panels.
Key Features
- Lovato BFK series capacitor-switching contactor.
- Designed specifically for power factor correction (PFC).
- 75 kvar capacitor-bank rating.
- 48 V AC control coil.
- 50/60 Hz coil frequency.
- Integrated early-make switching arrangement for capacitor energisation.
- Current-limiting resistors help suppress high capacitor charging currents.
- Suitable for industrial capacitor-bank and reactive-power compensation systems.
Reliable Capacitor Switching for Power Factor Correction
Power factor correction capacitor banks can draw extremely high transient currents when they are connected to an energised electrical system. Capacitor-duty contactors such as the Lovato BFK11500A048 are designed to manage these switching conditions using early-make contacts and resistors that initially limit the capacitor charging current before the main contacts complete the connection.
This controlled switching process helps minimise contact wear, electrical stress and disturbances associated with capacitor energisation. The BFK11500A048 is therefore suited to automatic PFC systems where capacitor stages are repeatedly connected and disconnected according to changes in the installation's reactive-power demand.
Typical Applications
- Automatic power factor correction panels.
- Industrial capacitor-bank switching systems.
- Reactive-power compensation equipment.
- Industrial plants with inductive motor loads.
- Commercial and industrial electrical distribution systems.
- Switchboards incorporating stepped capacitor banks.
