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BFK1810A400 – 3P CONTACTOR 15KVAR 400V 50/60HZ
Lovato BFK1810A400 is a three-pole power factor correction contactor with integrated limiting resistors, a 1NO auxiliary contact, a 15 kvar AC-6b rating at 400 V and a 400 V AC 50/60 Hz coil for capacitor bank switching.
£57.30
Why Choose the Lovato BFK1810A400 Power Factor Correction Contactor?
The Lovato BFK1810A400 is a specialised three-pole power factor correction contactor designed for reliable switching of capacitor banks in industrial and commercial electrical installations. As part of the Lovato BFK18 contactor series, it is specifically engineered for AC-6b capacitor switching duties and incorporates limiting resistors to reduce the high inrush currents associated with energising capacitors.
The BFK1810A400 provides an IEC AC-6b operational power rating of 15 kvar at 400 V and features a 400 V AC 50/60 Hz coil. A built-in 1NO auxiliary contact provides an additional normally open contact for signalling, interlocking and control functions within power factor correction equipment.
With a conventional free-air thermal current of 32 A, rated insulation voltage of 690 V and rated impulse withstand voltage of 6 kV, the BFK1810A400 is engineered for dependable capacitor switching. Screw fixing or 35 mm DIN rail mounting enables straightforward integration into automatic power factor correction panels and electrical control cabinets.
Key Advantages
- Purpose-designed contactor for power factor correction and capacitor switching.
- 15 kvar IEC AC-6b operational power at 400 V.
- Integrated limiting resistors help reduce capacitor switching inrush current.
- 400 V AC 50/60 Hz coil for compatible industrial control circuits.
- Built-in 1NO auxiliary contact for signalling and control functions.
- 32 A conventional free-air thermal current at up to 40°C.
- Flexible screw or 35 mm DIN rail mounting for electrical panel installation.
Key Features
- Lovato BFK18 power factor correction contactor series.
- Three-pole power contactor.
- 15 kvar rated operational power at 400 V AC-6b.
- 400 V AC 50/60 Hz rated coil voltage.
- Integrated limiting resistors for capacitor switching.
- Built-in 1NO auxiliary contact.
- 32 A conventional free-air thermal current.
- 690 V rated insulation voltage.
- 6 kV rated impulse withstand voltage.
- Screw fixing or 35 mm DIN rail mounting.
Reliable Capacitor Switching for Power Factor Correction
Power factor correction contactors such as the Lovato BFK1810A400 are specifically engineered for switching capacitor stages in reactive power compensation systems. Capacitors can produce substantial transient inrush currents when energised, so the BFK design incorporates limiting resistors that help reduce these current peaks and the resulting electrical stress during switching.
The BFK1810A400 provides 15 kvar at 400 V AC-6b and combines dedicated capacitor switching characteristics with a 400 V AC 50/60 Hz coil. Its three-pole design, built-in auxiliary contact and panel-friendly mounting options make it suitable for automatic power factor correction equipment in industrial and commercial installations.
Typical Applications
- Automatic power factor correction panels.
- Three-phase capacitor bank switching.
- Reactive power compensation systems.
- Capacitor switching stages up to 15 kvar at 400 V.
- Industrial and commercial electrical distribution installations.
- OEM power factor correction equipment.
Technical Specifications
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| Coil Voltage Range | 380–440 V | |
|---|---|---|
| Device Type | Capacitor Switching Contactor | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 400 V AC | |
| Auxiliary Contacts | 1NO | |
| Coil Type | AC | |
| Current AC-1 | 32 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | BFK18 | |
| Model | BFK1810A400 | |
| Product type | Contactor for power factor correction with AC control circuit | |
| Number of poles | 3 | |
| Built-in auxiliary contacts | 1NO | |
| Coil type | AC coil 50/60 Hz | |
| Rated coil voltage | 400 V AC | |
| Rated operational power AC-6b at 230 V | 9 kvar | |
| Rated operational power AC-6b at 400 V | 15 kvar | |
| Rated operational power AC-6b at 440–480 V | 17 kvar | |
| Rated operational power AC-6b at 690 V | 20 kvar | |
| IEC conventional free-air thermal current Ith (≤40°C) | 32 A | |
| Rated insulation voltage Ui | 690 V | |
| Rated impulse withstand voltage Uimp | 6 kV | |
| Operational frequency | 25–400 Hz | |
| Short-time allowable current for 10 s | 200 A | |
| Making capacity | 180 A RMS | |
| Breaking capacity at 440 V | 144 A | |
| Breaking capacity at 500 V | 120 A | |
| Breaking capacity at 690 V | 94 A | |
| Resistance per pole | 2.5 mΩ | |
| Power dissipation per pole at Ith | 2.6 W | |
| Main terminal tightening torque | 1.5–1.8 Nm | |
| Mounting type | Screw / DIN rail 35 mm | |
| Weight | 428 g | |
| Package dimensions | 265 × 265 × 135 mm | |
| EAN | 8013975163290 |
Frequently Asked Questions
What is the Lovato BFK1810A400 used for?
The BFK1810A400 is a three-pole contactor designed specifically for switching capacitor banks in automatic power factor correction and reactive power compensation systems.
What is the power rating of the BFK1810A400 at 400 V?
The BFK1810A400 has an IEC AC-6b rated operational power of 15 kvar at 400 V.
What coil voltage does the BFK1810A400 require?
The BFK1810A400 uses a 400 V AC 50/60 Hz coil for operation from compatible AC control circuits.
Does the BFK1810A400 include limiting resistors?
Yes. The BFK1810A400 incorporates limiting resistors designed to reduce the high inrush current produced when capacitor stages are energised.
Does the BFK1810A400 have a built-in auxiliary contact?
Yes. The BFK1810A400 includes a built-in 1NO auxiliary contact for signalling, interlocking and control functions.
Trusted Power Factor Correction Switching
Lovato Electric BFK contactors are purpose-designed for capacitor switching in power factor correction systems, combining integrated inrush-current limiting resistors with dependable electrical performance for industrial and commercial installations.
