BFK6500A400 – PFC CONTACTOR 45KVAR 400VAC 50/60HZ

Why Choose the Lovato BFK6500A400 Power Factor Correction Contactor?

The Lovato BFK6500A400 is a heavy-duty three-pole power factor correction contactor designed for capacitor bank switching in industrial electrical panels, reactive power compensation systems and automatic power factor correction assemblies. As part of the Lovato BFK65 series, it is purpose-built for AC-6b capacitor switching duty and includes limiting resistors to help reduce high inrush current when capacitor stages are energised.

This contactor is rated for a maximum IEC operational power of 45 kvar at 400 V, with additional capacitor switching ratings of 26 kvar at 230 V, 50 kvar at 440 to 480 V and 56 kvar at 690 V. It uses a 400 V AC 50/60 Hz coil, making it suitable for switchboards and industrial control panels where a 400 V AC command supply is required.

With 3 normally open main poles, 100 A conventional free air thermal current, screw or 35 mm DIN rail mounting, IP20 front terminal protection and recognised international approvals, the BFK6500A400 is a dependable choice for larger capacitor switching stages where controlled inrush performance, robust making capacity and long operating life are required.

Key Advantages

• Purpose-built capacitor switching contactor for power factor correction systems.
• 45 kvar at 400 V maximum IEC operational power rating.
• Integrated limiting resistors help reduce capacitor inrush current.
• 400 V AC 50/60 Hz coil for compatible industrial AC control circuits.
• 3-pole design with normally open main contacts.
• 100 A conventional free air thermal current for demanding capacitor switching assemblies.
• 650 A RMS making capacity for high capacitor inrush switching conditions.
• 400,000 electrical cycles and 15 million mechanical cycles.
• Suitable for screw fixing or 35 mm DIN rail mounting.
• Certified to major IEC, EN, BS, UL and CSA contactor standards.

Key Features

• Lovato BFK65 series capacitor switching contactor.
• AC control circuit with built-in limiting resistors.
• Rated operational power: 45 kvar at 400 V AC-6b.
• Number of poles: 3.
• Main contact configuration: 3 normally open contacts.
• Built-in auxiliary contacts: 0.
• Rated coil voltage: 400 V AC at 50/60 Hz.
• Conventional free air thermal current Ith: 100 A.
• Rated insulation voltage Ui: 690 V.
• Rated impulse withstand voltage Uimp: 8 kV.
• Making capacity: 650 A RMS.
• Power terminal protection: IP20 front.
• Fixing: screw mounting or 35 mm DIN rail.

Reliable Capacitor Switching for Power Factor Correction Panels

Power factor correction contactors are designed to switch capacitor stages safely and repeatedly in automatic capacitor banks. When capacitors are energised, high transient inrush current can occur. The Lovato BFK6500A400 uses built-in limiting resistors to help reduce these current peaks, supporting longer contactor life and more stable capacitor bank operation.

The 45 kvar at 400 V rating makes this model suitable for larger capacitor bank stages where robust switching performance, controlled inrush limitation and reliable AC control operation are required. Its 400 V AC 50/60 Hz coil, BFK65 frame, 650 A RMS making capacity and IP20 front protection make it straightforward to integrate into professional power factor correction panels.

Typical Applications

• Automatic power factor correction capacitor banks.
• Reactive power compensation panels.
• Industrial electrical distribution systems.
• Capacitor switching stages up to 45 kvar at 400 V.
• Commercial and industrial energy management systems.
• Low-voltage switchgear and control panels.
• OEM power factor correction equipment.
• Installations requiring a 400 V AC control coil.