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11B31000220 Lovato b series 3 pole maxi contactor 320A 170kW 450A 230VAC/DC
Lovato 11B31000220 B310 three-pole power contactor with 320 A AC-3 rating, 170 kW motor power capability and 220-240 V AC/DC coil for industrial motor control applications.
This product has been discontinued
A direct replacement is available below.
Replacement product
93714
SKU: BF33000E230
£1,040.27 ex VAT
View
£1,433.27
Why Choose the Lovato 11B31000220 B310 Contactor?
The Lovato 11B31000220 is a heavy-duty three-pole power contactor designed for reliable switching of high-current three-phase motors and industrial electrical loads. Part of the robust Lovato B310 contactor series, it provides dependable performance for demanding motor control, automation and power distribution applications.
This contactor features an AC/DC coil rated at 220–240 V, allowing flexible integration into modern industrial control systems. Its high current capability, compact industrial design and screw mounting arrangement make it suitable for large machinery, motor control centres and heavy-duty electrical installations.
With an IEC AC-3 operational current rating of 320 A at 400 V AC, an AC-3 motor power rating of 170 kW at 400 V AC and an AC-1 thermal current rating of 450 A, the Lovato 11B31000220 is designed for controlling large three-phase motors and industrial loads requiring reliable switching performance.
Key Advantages
- Heavy-duty three-pole contactor for high-power industrial applications.
- 320 A AC-3 operational current rating for large motor switching.
- 170 kW motor switching capability at 400 V AC.
- 220–240 V AC/DC coil for flexible control circuit integration.
- 450 A thermal current rating for robust electrical performance.
- Designed for demanding industrial automation and motor control systems.
Key Features
- Lovato B310 contactor series.
- Three-pole power contactor configuration.
- AC/DC coil operation.
- 220–240 V AC/DC rated coil voltage.
- 320 A AC-3 current rating at 400 V AC.
- 450 A AC-1 thermal current rating.
- 170 kW AC-3 motor power rating at 400 V AC.
- Suitable for AC-1, AC-3 and AC-4 switching applications.
- Screw mounting design for industrial installations.
- High mechanical and electrical endurance.
Reliable High-Power Motor Control
Large contactors such as the Lovato 11B31000220 provide controlled switching of high-power motors and industrial loads. They enable automation systems to safely start, stop and manage demanding equipment while handling significant electrical currents.
The B310 series is engineered for industrial applications where high performance, durability and reliable switching are essential. Its high AC-3 rating makes it suitable for heavy-duty motor control installations across manufacturing, process and infrastructure environments.
Typical Applications
- Large industrial motor starters.
- Pumps and water treatment systems.
- Compressors and heavy machinery.
- Motor control centres.
- Industrial automation panels.
- Manufacturing and process equipment.
Technical Specifications
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| Coil Type | AC, AC/DC, DC | |
|---|---|---|
| Coil Voltage Range | 200–250 V | |
| Power | 170 kW | |
| Current | 320 A | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 220 V AC, 220 V DC, 230 V AC, 240 V AC | |
| Device Type | Contactor | |
| Current AC-1 | 450 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | B310 | |
| Model | 11B31000220 | |
| Product type | Power contactor | |
| Number of poles | 3 | |
| Main contact configuration | 3NO | |
| Coil type | AC/DC coil | |
| Rated coil voltage | 220–240 V AC/DC | |
| IEC thermal current Ith | 450 A | |
| Rated operational current AC-1 | 450 A | |
| Rated operational current AC-3 at 400 V AC | 320 A | |
| Rated operational power AC-3 at 400 V AC | 170 kW | |
| Rated operational current AC-4 at 400 V AC | 150 A | |
| Rated insulation voltage Ui | 1000 V | |
| Rated impulse withstand voltage Uimp | 8 kV | |
| UL/CSA motor rating at 480 V AC | 250 HP | |
| Mounting type | Screw mounting | |
| Protection rating | IP00 | |
| Mechanical life | 10,000,000 operations | |
| Electrical life | 700,000 operations | |
| Operating temperature | -50 to 70 °C | |
| Weight | approx. 9.52 kg |
Frequently Asked Questions
What is the Lovato 11B31000220 used for?
The Lovato 11B31000220 is a heavy-duty contactor used for switching large three-phase motors and industrial electrical loads.
What coil voltage does the 11B31000220 use?
The contactor uses a 220–240 V AC/DC coil for control operation.
What motor power can this contactor control?
The 11B31000220 is rated for motors up to 170 kW at 400 V AC in AC-3 operation.
How many poles does the Lovato 11B31000220 have?
The contactor has a three-pole configuration with three normally open main contacts.
How is the contactor mounted?
The Lovato 11B31000220 uses screw mounting for installation in industrial electrical panels.
Trusted by Industrial Automation Engineers
Lovato B310 contactors provide reliable high-current switching solutions for industrial motor control, automation systems and heavy-duty electrical applications.
