Lovato 11B250400110 heavy-duty three-pole industrial contactor with 265A AC3 operational current rating and 110V AC control coil for industrial motor control systems.
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Why Choose the Lovato 11B250400110 Four-Pole Contactor?
The Lovato 11B250400110 is a heavy-duty four-pole power contactor engineered for demanding AC-1 switching applications involving resistive loads, lighting circuits and industrial power distribution. Part of the robust Lovato B250 contactor series, this model features a 110–125V AC/DC universal operating coil, delivering reliable switching performance and simplified integration into industrial control systems.
Designed for industrial control panels, switchboards and OEM equipment, the contactor combines high switching capacity with outstanding mechanical durability. Its universal AC/DC coil reduces the need for multiple coil variants while ensuring compatibility with both AC and DC control circuits.
With an IEC AC-1 thermal current rating of 350A, four normally open main contacts and a robust bolt-terminal design, the 11B250400110 is ideally suited for high-current resistive switching duties where dependable long-term performance is essential.
Key Advantages
Heavy-duty 4-pole industrial power contactor.
350A IEC AC-1 thermal current rating.
110–125V AC/DC universal operating coil.
Four normally open (4NO) main contacts.
1000V rated insulation voltage and 8kV impulse withstand voltage.
Designed for demanding industrial control and power distribution applications.
Key Features
Lovato B250 series contactor.
Four main normally open poles (4NO).
350A IEC AC-1 thermal current.
110–125V AC/DC operating coil.
Universal AC/DC control voltage.
Bolt-connected main terminals.
1000V rated insulation voltage (Ui).
Mechanical life up to 10 million operations.
Technical Specifications
Manufacturer: Lovato Electric
Series: B250 Contactors
Model: 11B250400110
Product type: Four-pole power contactor
Number of poles: 4 NO
IEC thermal current (AC-1): 350A
Operating coil: 110–125V AC/DC
Rated insulation voltage (Ui): 1000V
Impulse withstand voltage (Uimp): 8kV
Operating frequency: 50/60Hz AC or DC
Mounting type: Screw mounting
Terminal type: Bolt terminals
Protection rating: IP00
Mechanical life: 10,000,000 operations
Operating temperature: -50°C to +70°C
Maximum installation altitude: 3000m
Weight: Approx. 11.2kg
Reliable High-Current Industrial Switching
The Lovato B250 four-pole contactor range is designed for reliable switching of high-current resistive loads and industrial power circuits. Robust contacts, high insulation ratings and durable construction ensure dependable operation in demanding electrical installations while minimising maintenance requirements.
Its four-pole configuration makes it particularly suitable for lighting control, heating equipment, power distribution systems and industrial installations requiring simultaneous switching of multiple conductors.
Typical Applications
Industrial lighting control.
Heating and resistive load switching.
Power distribution systems.
Industrial control panels.
OEM machinery.
Commercial electrical installations.
Technical Specifications
Power
140 kW
Current
265 A
Voltage
110 V
Phase
Three Phase
Series
B250 Contactors
Product type
Three-pole contactor
Operational current (AC3)
265 A
Rated operational power at 400 V AC3
140 kW
Control coil voltage
110 V AC
Coil frequency
50 / 60 Hz
Number of poles
3
Main contacts
3 NO
Insulation voltage
690 V
Mounting type
Panel / screw mounting
Terminal type
Screw terminals
Operating temperature
approx. -50 °C to +70 °C
Weight
approx. 9.1 kg
Standards
IEC/EN 60947-1, IEC/EN 60947-4-1
Frequently Asked Questions
What is the Lovato 11B250400110 used for?
It is designed for switching high-current resistive loads, lighting circuits and industrial power distribution systems.
What control voltage does this contactor require?
The integrated operating coil accepts 110–125V AC/DC control voltage.
How many poles does this contactor have?
This model features four normally open (4NO) main poles.
What is the current rating?
The contactor has an 350A IEC AC-1 thermal current rating for heavy-duty resistive load switching.
Where is this contactor typically installed?
It is commonly installed in industrial control panels, switchboards, lighting control systems and heavy-duty power distribution equipment.
Trusted by Industrial Professionals Worldwide
Lovato Electric B250 contactors are trusted by machine builders, electrical panel manufacturers and industrial engineers for reliable high-current switching, robust construction and long operational life.
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Power
140 kW
Current
265 A
Voltage
110 V
Phase
Three Phase
Series
B250 Contactors
Product type
Three-pole contactor
Operational current (AC3)
265 A
Rated operational power at 400 V AC3
140 kW
Control coil voltage
110 V AC
Coil frequency
50 / 60 Hz
Number of poles
3
Main contacts
3 NO
Insulation voltage
690 V
Mounting type
Panel / screw mounting
Terminal type
Screw terminals
Operating temperature
approx. -50 °C to +70 °C
Weight
approx. 9.1 kg
Standards
IEC/EN 60947-1, IEC/EN 60947-4-1
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...