BFK3200A400 - 3P CONTACTOR 25KVAR 400V 50/60HZ

Why Choose the Lovato BFK3200A400 Power Factor Correction Contactor?

The Lovato BFK3200A400 is a compact and robust three-pole power factor correction contactor designed for controlled capacitor bank switching in industrial electrical panels, reactive power compensation systems and automatic power factor correction assemblies. As part of the Lovato BFK32 series, it is purpose-built for AC-6b capacitor switching duties 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 25 kvar at 400 V, with additional capacitor switching ratings of 14 kvar at 230 V, 27.5 kvar at 440 to 480 V and 30 kvar at 690 V. It uses a 400 V AC 50/60 Hz coil, making it suitable for switchboards and control panels where a 400 V AC command supply is required.

With 3 normally open main poles, 56 A conventional free air thermal current, screw or 35 mm DIN rail mounting, IP20 terminal protection when correctly wired and recognised international approvals, the BFK3200A400 is a dependable choice for medium capacitor switching stages where compact size, controlled inrush performance and long service life are required.

Key Advantages

• Purpose-built capacitor switching contactor for power factor correction systems.
• 25 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.
• 56 A conventional free air thermal current for capacitor switching assemblies.
• 1.6 million electrical cycles and 20 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 BFK32 series capacitor switching contactor.
• AC control circuit with built-in limiting resistors.
• Rated operational power: 25 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: 56 A.
• Rated insulation voltage Ui: 690 V.
• Rated impulse withstand voltage Uimp: 6 kV.
• Making capacity: 320 A RMS.
• Power terminal protection: IP20 when correctly wired.
• Fixing: screw mounting or 35 mm DIN rail.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: BFK32
• Model: BFK3200A400
• Product designation: Power contactor
• Product type: Contactor for power factor correction with AC control circuit
• Application: Capacitor bank and power factor correction switching
• Number of poles: 3
• Main contact configuration: 3 NO
• Built-in auxiliary contacts: 0
• Type of coil: AC coil 50/60 Hz
• Rated coil voltage: 400 V AC at 50/60 Hz
• Operational frequency: 25 to 400 Hz
• IEC operational power at 230 V: 14 kvar
• IEC operational power at 400 V: 25 kvar
• IEC operational power at 440 to 480 V: 27.5 kvar
• IEC operational power at 690 V: 30 kvar
• Rated operational current: 36 A
• IEC conventional free air thermal current Ith: 56 A at ≤40 °C
• Rated insulation voltage Ui: 690 V
• Rated impulse withstand voltage Uimp: 6 kV
• Short-time allowable current: 320 A for 10 s
• Protection fuse: 63 A gG
• Making capacity: 320 A RMS
• Breaking capacity: 256 A at 440 V, 240 A at 500 V, 192 A at 690 V
• Average resistance per pole: 2 mΩ
• Power dissipation per pole at Ith: 6 W
• Terminal tightening torque: 2.5 to 3 Nm
• Coil terminal tightening torque: 0.8 to 1 Nm
• Maximum connectable wires per terminal: 2
• Maximum conductor section: 6 AWG/kcmil
• Flexible conductor section without lug: 2.5 to 16 mm²
• Flexible conductor section with lug: 1 to 10 mm²
• Flexible conductor section with insulated spade lug: 1 to 10 mm²
• Power terminal protection: IP20 when properly wired
• Operating position: Vertical plane, allowable ±30°
• Mounting type: Screw fixing / 35 mm DIN rail
• Approximate dimensions: 45 x 126 x 123 mm
• Weight: approx. 502 g
• Mechanical life: 20,000,000 cycles
• Electrical life: 1,600,000 cycles
• B10d rated load cycles: 1,600,000
• B10d mechanical load cycles: 20,000,000
• Maximum mechanical operating frequency: 3,600 cycles/h
• AC coil operating range at 50 Hz: 80 to 110% Us pick-up, 20 to 55% Us drop-out
• AC coil operating range at 60 Hz: 85 to 110% Us pick-up, 20 to 55% Us drop-out
• AC coil consumption at 50 Hz: 75 VA inrush, 9 VA holding
• AC coil consumption at 60 Hz: 70 VA inrush, 7 VA holding
• Dissipation at holding: 2.5 W at 50 Hz
• Average closing time: 8 to 24 ms
• Average opening time: 5 to 15 ms
• UL rated operational voltage: 600 V AC
• UL general use current: 56 A
• Operating temperature: -50 °C to +70 °C
• Storage temperature: -60 °C to +80 °C
• Maximum altitude: 3,000 m
• Pollution degree: 3
• EMC compatibility: Yes
• ETIM classification: EC001079 - Capacitor contactor
• Package quantity: 10
• Package dimensions: 265 x 265 x 135 mm
• Package volume: 948.038 cm³
• EAN: 8013975163535
• HS code: 85365080
• Certifications: CCC, EAC, cULus
• Standards: IEC/EN/BS 60947-1, IEC/EN/BS 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 No. 60947-1, CSA C22.2 No. 60947-4-1

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 BFK3200A400 uses built-in limiting resistors to help reduce these current peaks, supporting longer contactor life and more stable capacitor bank operation.

The 25 kvar at 400 V rating makes this model suitable for medium capacitor bank stages where compact installation, reliable AC control operation and repeatable switching performance are required. Its 400 V AC 50/60 Hz coil, BFK32 frame, high electrical endurance 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 25 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.

Trusted by Panel Builders and Energy Engineers

Lovato BFK capacitor switching contactors are trusted by panel builders, facilities engineers and energy management specialists for dependable power factor correction, compact installation and reliable capacitor switching performance in industrial electrical systems.