Why Choose the Lovato BF420T4D024 4-Pole Power Contactor?
The Lovato BF420T4D024 is a heavy-duty 4-pole power contactor designed for reliable switching of high-current electrical loads in industrial control, distribution and automation systems. As part of the Lovato BF contactor series, it combines a robust power switching design with a 24 V DC control coil for integration into modern electrical control systems.
With an IEC conventional free-air thermal current (Ith) rating of 630 A, the BF420T4D024 is suitable for demanding AC-1 applications such as resistive loads, heating systems and power distribution circuits. Its four main poles allow simultaneous switching of four conductors, while the BF420 platform also provides substantial AC-3 motor-switching capability.
The contactor has an AC-1 operational current of 600 A at up to 40 °C and an AC-3 operational current of 420 A at up to 440 V. At 400 V AC it supports AC-3 motor loads up to 200 kW, while its 24 V DC coil makes it suitable for control panels using low-voltage DC control circuits.
Key Advantages
- Heavy-duty 4-pole contactor for high-current industrial switching.
- 630 A IEC conventional thermal current (Ith) rating.
- 600 A AC-1 operational current at up to 40 °C.
- 420 A AC-3 operational current at up to 440 V.
- 200 kW AC-3 motor rating at 400 V.
- 24 V DC control coil for low-voltage control systems.
- High mechanical endurance for demanding industrial switching duties.
- Robust screw-mounted construction for electrical panels and switchgear assemblies.
Key Features
- Lovato BF420 power contactor series.
- 4 main switching poles.
- 630 A conventional free-air thermal current (Ith).
- 600 A AC-1 operational current at ≤40 °C.
- 420 A AC-3 operational current at ≤440 V and ≤55 °C.
- 24 V DC rated control voltage.
- 1000 V rated insulation voltage (Ui).
- 8 kV rated impulse withstand voltage (Uimp).
- Mechanical endurance of up to 5,000,000 operating cycles.
- Screw fixing and screw-connected main power terminals.
Reliable High-Current Switching for Industrial Control
Power contactors such as the Lovato BF420T4D024 provide electrically controlled switching of high-current circuits, allowing relatively low-power control signals to operate substantial industrial loads. The four-pole configuration is particularly useful where four conductors must be switched together in power distribution, heating and other multi-pole load-control applications.
The BF420 platform is engineered for demanding industrial service, combining high current capacity with substantial electrical and mechanical endurance. Its 24 V DC coil enables straightforward integration with PLC-controlled machinery, automation systems and low-voltage control circuits, while screw mounting provides secure installation within switchboards and industrial control panels.
Typical Applications
- High-current industrial power switching systems.
- Resistive heating and AC-1 load control.
- Industrial motor control and switching.
- Electrical distribution and switchgear assemblies.
- Industrial machinery and automation panels.
- HVAC and large building-services equipment.
- OEM control systems and industrial equipment.
