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11B31000110 Lovato b series 3 pole maxi contactor 320A 170kW 450A 110VAC/DC
Lovato 11B31000110 B310 three-pole power contactor with 320 A AC-3 rating, 170 kW motor power capability and 110-125 V AC/DC coil for industrial motor control applications.
Why Choose the Lovato 11B31000110 B310 Contactor?
The Lovato 11B31000110 is a heavy-duty three-pole power contactor designed for high-current motor control and industrial switching applications. Part of the robust Lovato B310 contactor series, it provides reliable switching performance for large motors, industrial machinery and electrical distribution systems.
This contactor features an AC/DC coil rated at 110–125 V, allowing flexible integration into industrial control circuits. Its high current capacity, reinforced construction and screw mounting design make it suitable for demanding applications requiring dependable operation and long service life.
With an IEC AC-3 operational current rating of 320 A at 400 V AC and a motor power rating of 170 kW at 400 V AC, the Lovato 11B31000110 is designed for controlling large three-phase motors, including pumps, compressors, fans and industrial production equipment.
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.
- 110–125 V AC/DC coil for flexible control system integration.
- High thermal current capability of 450 A.
- Robust construction for demanding industrial environments.
Key Features
- Lovato B310 contactor series.
- Three-pole power contactor configuration.
- AC/DC coil operation.
- 110–125 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 and bolt-type power connections.
- Long mechanical and electrical service life.
Reliable High-Power Motor Control
Large contactors such as the Lovato 11B31000110 provide safe and reliable electrical switching for high-power motors and industrial loads. They allow automated control systems to start, stop and manage heavy-duty equipment while handling significant electrical currents.
The B310 series is engineered for industrial applications requiring high performance, durability and compliance with international electrical standards. Its high AC-3 rating makes it suitable for demanding motor control installations in manufacturing and process industries.
Typical Applications
- Large industrial motor starters.
- Pumps and water treatment equipment.
- Compressors and heavy machinery.
- Industrial fans and ventilation systems.
- Motor control centres.
- Manufacturing and process automation systems.
Technical Specifications
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| Coil Type | AC, AC/DC, DC | |
|---|---|---|
| Coil Voltage Range | 100–130 V | |
| Power | 170 kW | |
| Current | 320 A | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 110 V AC, 110 V DC, 115 V AC, 120 V AC, 125 V DC | |
| Device Type | Contactor | |
| Current AC-1 | 450 A | |
| HS Code | 85365080 | |
| Manufacturer | Lovato Electric | |
| Series | B310 | |
| Model | 11B31000110 | |
| Product type | Power contactor | |
| Number of poles | 3 | |
| Main contact configuration | 3 NO | |
| Coil type | AC/DC coil | |
| Rated coil voltage | 110–125 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 | 110 A | |
| Rated insulation voltage Ui | 1000 V | |
| Rated impulse withstand voltage Uimp | 8 kV | |
| Mounting type | Screw mounting | |
| Terminal tightening torque | 35 Nm | |
| Protection rating | IP00 | |
| Mechanical life | 10,000,000 operations | |
| Electrical life | 700,000 operations | |
| Operating temperature | -50 to 70 °C | |
| Weight | approx. 9.65 kg |
Frequently Asked Questions
What is the Lovato 11B31000110 used for?
The Lovato 11B31000110 is a heavy-duty contactor used for switching large three-phase motors and industrial electrical loads.
What coil voltage does the 11B31000110 use?
The contactor uses an 110–125 V AC/DC coil for control operation.
What motor power can this contactor control?
The 11B31000110 is rated for motors up to 170 kW at 400 V AC in AC-3 operation.
How many poles does the Lovato 11B31000110 have?
The contactor has a three-pole configuration with three normally open main contacts.
What mounting method is used?
The Lovato 11B31000110 uses screw mounting with bolt-type power connections.
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.
