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11B500400110 – 4P CONTACTOR B500.4.00 110/125
Lovato 11B500400110 heavy-duty four-pole industrial contactor with 520 A AC3 operational current rating and 110–125 V AC/DC operating coil for industrial motor control and power switching applications.
£2,890.03
Why Choose the Lovato 11B500400110 Contactor?
The Lovato 11B500400110 is a heavy-duty four-pole industrial power contactor designed for dependable switching of high-current electrical loads in demanding industrial environments. As part of the robust Lovato B500 contactor series, it features a versatile 110–125 V AC/DC operating coil and is engineered for high-capacity switching in motor control, power distribution and industrial automation systems.
Its four normally open main contacts provide reliable control of three-phase and four-pole circuits while offering excellent electrical endurance and mechanical durability. The contactor is suitable for installation in motor control centres, switchboards, OEM machinery and industrial power panels where dependable high-current switching is essential.
With an IEC conventional free-air thermal current rating of 700 A and an IEC AC-3 operational rating of 520 A / 290 kW at 400 V, the Lovato 11B500400110 is ideal for controlling large industrial motors, compressors, pumps, conveyors and process equipment.
Key Advantages
- Heavy-duty four-pole industrial power contactor.
- 700 A AC-1 operational current.
- 520 A AC-3 operational current for demanding motor-control applications.
- Suitable for motors rated up to 290 kW at 400 V.
- 110–125 V AC/DC operating coil.
- Four normally open main contacts for high-current switching applications.
Key Features
- Lovato B500 power contactor series.
- Four normally open main power poles.
- 110–125 V AC/DC control coil.
- 700 A IEC AC-1 thermal current.
- 520 A / 290 kW IEC AC-3 rating at 400 V.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Bolt-connected power terminals with screw mounting.
Reliable High-Current Switching
The Lovato 11B500400110 enables safe remote control of high-power electrical loads using a low-power control circuit. Its four-pole configuration makes it particularly suitable for applications requiring simultaneous switching of multiple conductors, while its robust construction ensures dependable long-term operation under demanding industrial conditions.
Designed for industrial automation, OEM machinery and electrical distribution equipment, the B500 series delivers the performance, durability and reliability expected in heavy-duty motor control installations.
Typical Applications
- Large industrial motor starters.
- Motor control centres (MCCs).
- Industrial switchboards.
- Pumps, compressors and ventilation systems.
- Heavy-duty conveyors and process machinery.
- Industrial automation and power-distribution systems.
Technical Specifications
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| Terminal Type | Bar / bolt | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 100–130 V | |
| Current | 520 A | |
| Power | 290 kW | |
| Voltage | 125 V | |
| Phase | Three Phase | |
| Poles | 4-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 | 700 A | |
| Series | B500 Contactors | |
| Product type | Four-pole power contactor | |
| Number of poles | 4 | |
| Main contact configuration | 4 NO | |
| IEC operational current Ith (AC1) | 700 A | |
| IEC operational current Ie (AC3) | 520 A | |
| Motor power rating | 290 kW at 400 V | |
| Type of coil | AC/DC operating coil | |
| Rated coil voltage | 110–125 V AC/DC | |
| Rated insulation voltage Ui | 1000 V | |
| Rated impulse withstand voltage Uimp | 8 kV | |
| Frequency | 25–400 Hz | |
| Mounting type | Screw mounting | |
| Connection type | Bolt/screw terminals | |
| Operating temperature | -50 °C to +70 °C | |
| Weight | Approx. 20.9 kg | |
| Package dimensions | Approx. 277 × 268 × 276 mm | |
| EAN | 8013975026540 | |
| Compliance standards | IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 No. 60947-1, CSA C22.2 No. 60947-4-1 | |
| Certifications | CCC, EAC, cULus |
Frequently Asked Questions
What is the Lovato 11B500400110 used for?
It is used for switching large industrial motors and other high-current electrical loads in industrial automation and power-control systems.
How many main poles does this contactor have?
The Lovato 11B500400110 features four normally open main power poles.
What control voltage does this contactor require?
The operating coil is rated for 110–125 V AC/DC.
What is the AC-3 motor rating?
The contactor is rated at 520 A and is suitable for motors up to 290 kW at 400 V.
Where is this contactor typically installed?
It is commonly installed in industrial control panels, motor control centres, switchgear assemblies and OEM machinery.
Trusted for Industrial Power Switching
Lovato B500 contactors are trusted worldwide by OEMs, machine builders and industrial engineers for dependable high-current switching, long service life and reliable operation in demanding industrial environments.
