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BFK3200A04860 – 3P CONTACTOR 25KVAR 48V 60HZ
Lovato BFK3200A04860 is a three-pole capacitor contactor with integrated limiting resistors, a 25 kvar AC-6b rating at 400 V and a 48 V AC 60 Hz coil.
£93.07
Why Choose the Lovato BFK3200A04860 Capacitor Contactor?
The Lovato BFK3200A04860 is a specialised three-pole capacitor contactor for power factor correction systems. As part of the Lovato BFK32 series, it is designed to switch three-phase capacitor banks while managing the high transient current generated during capacitor energisation.
This contactor incorporates limiting resistors that are connected during the initial switching stage. These resistors reduce capacitor inrush current before the main contacts complete the connection, helping protect the contactor, capacitors and associated electrical equipment from excessive electrical and mechanical stress.
The BFK3200A04860 provides an AC-6b operational rating of 25 kvar at 400 V and uses a 48 V AC coil designed for 60 Hz operation. Screw and 35 mm DIN-rail mounting options support straightforward installation in automatic power factor correction panels.
Key Advantages
- Purpose-built contactor for power factor correction capacitor banks.
- Integrated limiting resistors help reduce capacitor inrush current.
- 25 kvar AC-6b rating at 400 V.
- Three-pole design for three-phase capacitor switching.
- Dedicated 48 V AC, 60 Hz coil.
- Flexible screw or 35 mm DIN-rail mounting.
- Mechanical endurance of up to 20 million operating cycles.
Key Features
- Lovato BFK32 capacitor-contactor series.
- Three main switching poles.
- AC control circuit with integrated limiting resistors.
- 25 kvar rating at 400 V.
- 27.5 kvar rating at 440–480 V.
- Rated insulation voltage of 690 V.
- Rated impulse withstand voltage of 6 kV.
- 48 V AC coil for 60 Hz operation.
- IP20 power-terminal protection when correctly wired.
Controlled Switching for Power Factor Correction
Power factor correction capacitor banks can draw very high transient currents when energised, particularly when other capacitors are already connected to the supply. A conventional motor contactor is not specifically designed to manage these capacitor-switching conditions.
The Lovato BFK3200A04860 uses early-make contacts and limiting resistors to reduce the initial charging current. After the transient has been limited, the main contacts close and bypass the resistors, providing the normal operating connection to the capacitor bank.
Typical Applications
- Automatic power factor correction panels.
- Three-phase capacitor-bank switching.
- Industrial reactive-power compensation systems.
- Electrical distribution switchboards.
- Manufacturing and process installations.
- Commercial and industrial power-quality systems.
Technical Specifications
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| Coil Voltage Range | 42–48 V | |
|---|---|---|
| Device Type | Capacitor Switching Contactor | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 48 V AC | |
| Coil Type | AC | |
| Current AC-1 | 56 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | BFK32 | |
| Model | BFK3200A04860 | |
| Product type | Capacitor contactor for power factor correction | |
| Number of poles | 3 | |
| Inrush-current control | Integrated limiting resistors | |
| Utilisation category | AC-6b | |
| Coil type | AC, 60 Hz | |
| Rated coil voltage | 48 V AC | |
| AC-6b operational power at 230 V | 14 kvar | |
| AC-6b operational power at 400 V | 25 kvar | |
| AC-6b operational power at 440–480 V | 27.5 kvar | |
| AC-6b operational power at 690 V | 30 kvar | |
| Conventional thermal current | 56 A | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Operational frequency | 25–400 Hz | |
| Short-time current for 10 s | 320 A | |
| Making capacity | 320 A RMS | |
| Breaking capacity at 440 V | 256 A | |
| Breaking capacity at 500 V | 240 A | |
| Breaking capacity at 690 V | 192 A | |
| Recommended gG fuse | 63 A | |
| Average resistance per pole | 2 mΩ | |
| Terminal tightening torque | 2.5–3 Nm | |
| Coil inrush consumption | 75 VA | |
| Coil holding consumption | 9 VA | |
| Power-terminal protection | IP20 when correctly wired | |
| Mounting | Screw or 35 mm DIN rail | |
| Operating position | Vertical, ±30° allowable | |
| Mechanical endurance | 20 million cycles | |
| Electrical endurance | 1.6 million cycles | |
| Maximum mechanical operating frequency | 3,600 cycles/hour |
Frequently Asked Questions
What is the Lovato BFK3200A04860 used for?
The BFK3200A04860 is used to switch three-phase capacitor banks in automatic and fixed power factor correction systems.
What is the capacitor-switching rating at 400 V?
The contactor has an AC-6b operational power rating of 25 kvar at 400 V.
Why does this contactor include limiting resistors?
The limiting resistors reduce the high transient current produced when a capacitor bank is energised, helping protect the contacts and connected equipment.
What control voltage does the coil require?
The BFK3200A04860 has a 48 V AC coil designed specifically for 60 Hz operation.
How is the BFK3200A04860 mounted?
The contactor can be secured with screws or mounted on a standard 35 mm DIN rail.
Trusted Power Factor Control from Lovato Electric
Lovato Electric BFK series capacitor contactors provide controlled switching for power factor correction systems, combining inrush-current limiting technology with robust electrical performance and practical panel installation.
