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11B31000380 Lovato b series 3 pole maxi contactor 320A 170kW 450A 400VAC/DC
Lovato 11B31000380 three pole power contactor with 380–415 V AC/DC coil designed for heavy-duty motor control and industrial switching applications.
Why Choose the Lovato 11B31000380 B310 Heavy Duty Contactor?
The Lovato 11B31000380 is a heavy-duty three-pole power contactor designed for high-current motor switching, industrial automation and power distribution applications. Part of the robust Lovato B310 contactor series, it provides dependable switching performance for demanding electrical installations requiring high AC-3 ratings.
Featuring an AC/DC coil rated at 380–415 V, the 11B31000380 offers flexible control integration for industrial systems. Its rugged screw-mounted construction and high electrical endurance make it suitable for large motors, motor control centres and heavy industrial machinery.
With an AC-1 thermal current rating of 450 A and an AC-3 operational current rating of 320 A at 400 V, the Lovato 11B31000380 is suitable for motor applications up to 170 kW at 400 V AC.
Key Advantages
- Heavy-duty three-pole power contactor for industrial switching applications.
- 380–415 V AC/DC coil for flexible control circuit designs.
- 450 A AC-1 thermal current rating for high-power loads.
- 320 A AC-3 motor switching capability at 400 V.
- Suitable for motors up to 170 kW at 400 V AC.
- High mechanical durability with long service life.
Key Features
- Lovato B310 contactor series.
- Three main power poles.
- AC/DC operating coil rated 380–415 V.
- IEC Ith thermal current rating of 450 A.
- IEC AC-3 operational current of 320 A at 400 V.
- AC-3 motor power rating of 170 kW at 400 V.
- Rated insulation voltage Ui of 1000 V.
- Rated impulse withstand voltage Uimp of 8 kV.
- Screw mounting construction for industrial installations.
Reliable Motor Control for Heavy Industrial Loads
Heavy-duty contactors such as the Lovato 11B31000380 provide reliable electrical isolation and switching control for large motors and industrial loads. By allowing automation systems to control high-power circuits safely, they are essential components in modern industrial electrical assemblies.
The B310 series is engineered for applications requiring high current capacity, robust construction and dependable switching performance. Its AC/DC coil design provides compatibility with a wide range of industrial control systems.
Typical Applications
- Large industrial motor starters.
- Motor control centres (MCCs).
- Pumps, compressors and heavy machinery.
- Industrial switchboards and power distribution systems.
- OEM machinery and automation equipment.
- High-current industrial electrical installations.
Technical Specifications
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| Coil Type | AC, AC/DC, DC | |
|---|---|---|
| Coil Voltage Range | 380–440 V | |
| Current | 320 A | |
| Power | 170 kW | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 380 V AC, 400 V AC, 415 V AC | |
| Device Type | Contactor | |
| Current AC-1 | 450 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato | |
| Series | B310 | |
| Model | 11B31000380 | |
| Product type | Power contactor | |
| Number of poles | 3 | |
| Coil type | AC/DC coil | |
| Rated coil voltage | 380–415 V AC/DC | |
| IEC thermal current Ith (AC-1) | 450 A | |
| IEC operational current Ie (AC-3) at 400 V | 320 A | |
| AC-3 motor power at 400 V | 170 kW | |
| 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 operations | |
| Weight | approx. 9.53 kg |
Frequently Asked Questions
What is the Lovato 11B31000380 used for?
The Lovato 11B31000380 is a three-pole heavy-duty contactor designed for switching large motors and industrial electrical loads.
What coil voltage does the 11B31000380 use?
The contactor uses a 380–415 V AC/DC coil.
What motor power can this contactor control?
The contactor is rated for 170 kW at 400 V AC in AC-3 duty.
How many poles does the Lovato 11B31000380 have?
The contactor has three main power poles.
What is the maximum AC-3 current rating?
The Lovato 11B31000380 has an AC-3 operational current rating of 320 A at 400 V.
Trusted by Industrial Control Engineers
Lovato B310 contactors provide reliable high-current switching solutions for industrial motors, automation systems and heavy-duty electrical applications.
