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BF420T4E400 Lovato 4P CONTACTOR 630A AC1 250…500VAC/DC
Lovato BF420T4E400 heavy-duty 4-pole power contactor with 630 A conventional thermal current, 420 A AC-3 rating, 200 kW motor capacity at 400 V AC and a 250–500 V AC/DC electronically controlled coil.
£1,578.26
Why Choose the Lovato BF420T4E400 4-Pole Power Contactor?
The Lovato BF420T4E400 is a heavy-duty 4-pole power contactor designed for high-current industrial load switching, motor control and power distribution applications. Part of the Lovato BF series, this contactor combines a conventional free-air thermal current rating of 630 A with an electronically controlled 250–500 V AC/DC coil, providing reliable switching for demanding industrial electrical systems.
The BF420T4E400 is particularly well suited to AC-1 resistive and general-purpose load switching, while also providing substantial AC-3 motor control capability. Its four main power poles enable simultaneous switching of four conductors, making the contactor suitable for industrial distribution, isolation and control arrangements that require a 4-pole switching configuration.
With an AC-3 operational current of 420 A and a motor power rating of 200 kW at 400 V AC, the BF420T4E400 can control large industrial motors as well as high-current non-inductive and slightly inductive loads. The wide-range electronic coil supports both AC and DC control supplies, helping simplify integration into modern automation and power control panels.
Key Advantages
- Heavy-duty 4-pole contactor for high-current industrial switching.
- 630 A conventional free-air thermal current Ith for demanding power applications.
- Suitable for high-current AC-1 load switching.
- 420 A AC-3 operational current for industrial motor control.
- Rated for approximately 200 kW at 400 V AC under AC-3 motor duty.
- Wide-range electronically controlled 250–500 V AC/DC coil.
- Four normally open main poles provide simultaneous 4-pole power switching.
- Robust BF series construction for industrial machinery and power distribution systems.
Key Features
- Lovato BF420 series power contactor.
- 4 normally open main power poles.
- 630 A conventional free-air thermal current Ith.
- 420 A AC-3 operational current at up to 440 V.
- 200 kW AC-3 motor rating at 400 V AC.
- 250–500 V AC/DC electronically controlled coil.
- AC coil operation compatible with 50/60 Hz supplies.
- 1000 V rated insulation voltage Ui.
- 8 kV rated impulse withstand voltage Uimp.
- Designed for screw mounting in industrial electrical assemblies.
- Suitable for motor starters, power switching and automation systems.
Reliable High-Current Switching for Industrial Automation
Power contactors such as the Lovato BF420T4E400 allow high-current electrical circuits to be controlled remotely using a lower-power control signal. Energising the electronically controlled coil operates the four main contacts simultaneously, enabling machinery, motors and other industrial loads to be switched safely through an automated control system.
The BF420T4E400 combines high-current AC-1 capability with an AC-3 rating of 420 A, making it suitable for both general load switching and large motor applications. Its wide 250–500 V AC/DC coil range provides additional flexibility for panel builders and system integrators working with different industrial control voltages.
Typical Applications
- High-current industrial power switching.
- Three-phase motor starters and motor control centres.
- Industrial motors up to 200 kW at 400 V AC under AC-3 conditions.
- Four-pole electrical load switching systems.
- Industrial machinery and production equipment.
- Pumps, compressors, fans and ventilation systems.
- Process automation and manufacturing installations.
- Power distribution and electrical control panels.
Technical Specifications
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| Coil Type | AC, AC/DC, DC | |
|---|---|---|
| Coil Voltage Range | 200–250 V, 380–440 V, 460–500 V | |
| Power | 200 kW | |
| Current | 420 A | |
| Poles | 4-pole | |
| Coil / Supply Voltage | 250 V DC, 380 V AC, 400 V AC, 415 V AC, 440 V AC, 480 V AC, 500 V AC | |
| Device Type | Contactor | |
| Current AC-1 | 630 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Family | Contactors | |
| Series | BF420 | |
| Model | BF420T4E400 | |
| Product type | Power contactor | |
| Number of poles | 4 | |
| Main contact configuration | 4NO | |
| Coil type | Electronically controlled AC/DC coil | |
| Rated coil voltage | 250–500 V AC/DC | |
| AC coil frequency | 50/60 Hz | |
| Conventional free-air thermal current Ith | 630 A | |
| Rated operational current AC-3 | 420 A | |
| AC-3 motor power at 230 V | 132 kW | |
| AC-3 motor power at 400 V | 200 kW | |
| AC-3 motor power at 415 V | 250 kW | |
| AC-3 motor power at 440 V | 250 kW | |
| AC-3 motor power at 500 V | 250 kW | |
| AC-3 motor power at 690 V | 355 kW | |
| Rated insulation voltage Ui | 1000 V | |
| Rated impulse withstand voltage Uimp | 8 kV | |
| Mounting type | Screw mounting | |
| Normal mounting position | Vertical plane | |
| Permitted mounting inclination | ±30° | |
| Operating temperature | -40 to +70 °C | |
| Storage temperature | -50 to +80 °C | |
| Maximum operating altitude | 3000 m | |
| Pollution degree | 3 |
Frequently Asked Questions
What is the Lovato BF420T4E400 used for?
The Lovato BF420T4E400 is a 4-pole industrial power contactor used for high-current load switching, motor control, industrial machinery and electrical power distribution applications.
What is the current rating of the Lovato BF420T4E400?
The BF420T4E400 has a conventional free-air thermal current rating of 630 A and an AC-3 operational current rating of 420 A for demanding industrial motor switching applications.
What coil voltage does the BF420T4E400 require?
The BF420T4E400 uses an electronically controlled wide-range coil rated for 250–500 V AC/DC, allowing operation from both compatible AC and DC industrial control supplies.
What motor power can the Lovato BF420T4E400 control at 400 V?
Under AC-3 operating conditions, the BF420T4E400 is rated for motors up to approximately 200 kW at 400 V AC, with an operational current rating of 420 A.
How many poles does the Lovato BF420T4E400 have?
The BF420T4E400 has four normally open main power poles, enabling four conductors to be switched simultaneously in compatible industrial power and control systems.
Trusted by Industrial Automation and Power Control Professionals Worldwide
Lovato BF series power contactors provide panel builders, machine manufacturers and automation engineers with robust switching solutions for high-current motor control, industrial machinery and electrical power distribution systems.
