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11B40000380 Lovato b series 3 pole maxi contactor 420A 225kW 550A 400VAC/DC
Lovato 11B40000380 B400 three-pole power contactor with 380-415 V AC/DC coil and 420 A AC-3 rating designed for high-power industrial motor switching applications.
Why Choose the Lovato 11B40000380 B400 Power Contactor?
The Lovato 11B40000380 is a heavy-duty three-pole power contactor designed for reliable switching and control of high-current electrical loads in industrial motor control, automation and power distribution systems. As part of the robust Lovato B400 contactor series, it is engineered for demanding applications requiring high electrical performance, durability and long operational life.
This contactor features a flexible 380–415 V AC/DC coil, allowing integration into a wide range of industrial control circuits. Its rugged construction, screw terminal connections and high insulation ratings make it suitable for large motors, machinery and heavy-duty electrical installations.
With a rated AC-3 operational current of 420 A and motor switching capability up to 225 kW at 400 V AC, the Lovato 11B40000380 is designed for high-power three-phase motor applications where reliable switching performance is essential.
Key Advantages
- Heavy-duty B400 series power contactor for industrial applications.
- 420 A AC-3 operational current rating for high-power motor switching.
- 380–415 V AC/DC coil for flexible control system integration.
- 225 kW motor switching capacity at 400 V AC.
- High mechanical endurance with up to 10 million operating cycles.
- Robust screw mounting design for industrial control panels.
Key Features
- Lovato B400 power contactor series.
- Three-pole contactor design.
- 3 normally open main contacts.
- 380–415 V AC/DC coil voltage.
- 420 A AC-3 rated operational current.
- 550 A AC-1 thermal current rating.
- 1000 V rated insulation voltage Ui.
- 8 kV rated impulse withstand voltage Uimp.
- Suitable for demanding motor control and power switching applications.
Reliable High-Power Switching for Industrial Systems
Power contactors such as the Lovato 11B40000380 provide safe and efficient control of high-current electrical circuits by using an electromagnetic coil to switch motor and power loads. This allows industrial automation systems to manage large motors and equipment reliably.
The Lovato B400 series is designed for applications where high current capacity, long service life and dependable switching performance are essential. Its advanced electrical ratings and rugged construction make it suitable for industrial plants, motor control centres and heavy-duty machinery.
Typical Applications
- Large industrial motor starters.
- Motor control centres and switchboards.
- Heavy-duty machinery and automation systems.
- Pumps, compressors and industrial drives.
- Manufacturing and processing equipment.
- High-power electrical control panels.
Technical Specifications
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| Coil Type | AC, AC/DC, DC | |
|---|---|---|
| Coil Voltage Range | 380–440 V | |
| Power | 225 kW | |
| Current | 420 A | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 380 V AC, 400 V AC, 415 V AC | |
| Device Type | Contactor | |
| Current AC-1 | 550 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | B400 | |
| Model | 11B40000380 | |
| Product type | Three-pole power contactor | |
| Number of poles | 3 | |
| Main contact configuration | 3 NO | |
| Coil type | AC/DC coil | |
| Rated coil voltage | 380–415 V AC/DC | |
| Rated operational current AC-3 | 420 A | |
| Rated operational power AC-3 at 400 V | 225 kW | |
| Conventional thermal current Ith | 550 A | |
| Rated insulation voltage Ui | 1000 V | |
| Rated impulse withstand voltage Uimp | 8 kV | |
| Mounting type | Screw mounting | |
| Protection rating | IP00 | |
| Mechanical life | 10,000,000 cycles | |
| Electrical life | 700,000 cycles | |
| Operating temperature | -50 to +70 °C | |
| Weight | approx. 9.56 kg |
Frequently Asked Questions
What is the Lovato 11B40000380 used for?
The Lovato 11B40000380 is a three-pole power contactor used for switching and controlling high-current electrical loads, including industrial motors and machinery.
What coil voltage does this contactor use?
The contactor uses a 380–415 V AC/DC coil for industrial control applications.
What current rating does the Lovato 11B40000380 support?
The contactor supports up to 420 A AC-3 operational current and 550 A thermal current Ith.
What motor power is supported by this contactor?
The Lovato 11B40000380 supports motors up to 225 kW at 400 V AC under AC-3 operating conditions.
Where is this contactor typically installed?
The contactor is typically installed inside industrial control panels, motor control centres and electrical switchgear assemblies.
Trusted by Industrial Automation Professionals
Lovato B400 contactors are widely used in demanding industrial applications where reliable high-current switching, long service life and dependable motor control are required.
