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11B500400440 – 4P CONTACTOR B500.4.00 440/480
Lovato 11B500400440 heavy-duty four-pole industrial contactor with 520 A AC3 operational current rating and 440–480 V AC/DC operating coil for industrial motor control and power switching applications.
£2,890.03
Why Choose the Lovato 11B500400440 Power Contactor?
The Lovato 11B500400440 is a heavy-duty 4-pole power contactor engineered for reliable switching of high-current industrial loads. As part of the proven Lovato B500 contactor series, it is designed for demanding motor control, power distribution and industrial automation applications where dependable performance and long service life are essential.
Featuring a robust AC/DC coil and high current switching capability, this contactor is ideal for OEM machine builders, panel manufacturers and industrial maintenance professionals. Its durable construction and IEC-compliant design provide reliable operation in challenging industrial environments.
With an IEC AC-1 thermal current rating of 700 A, an AC-3 operational current of 520 A at 400 V, and a 440–480 V AC/DC control coil, the 11B500400440 is suitable for controlling large motors, power circuits and industrial machinery requiring dependable high-capacity switching.
Key Advantages
- Heavy-duty 4-pole industrial power contactor.
- 700 A IEC AC-1 thermal current rating.
- 520 A AC-3 operational current at 400 V.
- 440–480 V AC/DC control coil for versatile installations.
- Designed for demanding industrial motor control applications.
- Robust screw terminal construction for secure electrical connections.
- Long mechanical and electrical operating life.
Key Features
- Lovato B500 Series power contactor.
- 4 normally open main poles.
- 700 A IEC AC-1 rated thermal current.
- 520 A AC-3 operational current at 400 V.
- 290 kW AC-3 motor switching capacity at 400 V.
- 440–480 V AC/DC operating coil.
- 1000 V rated insulation voltage.
- Screw mounting and bolt-type power terminals.
- Mirror contacts compliant with IEC/EN 60947-4-1.
- Suitable for industrial motor control and power switching.
Built for Heavy Industrial Switching
The Lovato B500 series is designed for switching high-current loads in industrial installations. Its robust contact system provides dependable operation for large motors, power distribution systems and demanding automation equipment while maintaining excellent electrical endurance.
With its high switching capacity, mirror contact design and durable mechanical construction, the 11B500400440 is well suited for industrial control panels, manufacturing facilities, energy systems and heavy machinery installations requiring reliable long-term operation.
Typical Applications
- Large industrial motor starters.
- Power distribution equipment.
- Industrial automation systems.
- Heavy machinery and production lines.
- HVAC and pumping installations.
- Mining and processing equipment.
- OEM electrical control panels.
Technical Specifications
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| Terminal Type | Bar / bolt | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 380–440 V, 460–500 V | |
| Current | 520 A | |
| Power | 290 kW | |
| Voltage | 480 V | |
| Phase | Three Phase | |
| Poles | 4-pole | |
| Coil / Supply Voltage | 440 V AC, 480 V AC | |
| 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 | |
| Rated operational power at 690 V | 416 kW | |
| Type of coil | AC/DC operating coil | |
| Rated coil voltage | 440–480 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 | |
| Protection category | Pollution degree 3 | |
| Weight | Approx. 21.63 kg | |
| Package dimensions | Approx. 277 × 268 × 276 mm | |
| EAN | 8013975048092 | |
| 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 11B500400440 used for?
It is a heavy-duty 4-pole power contactor used for switching high-current motors, industrial machinery and power distribution circuits.
How many poles does this contactor have?
The 11B500400440 features four normally open (4 NO) main poles.
What coil voltage does this contactor require?
The contactor is fitted with a 440–480 V AC/DC operating coil.
What is the AC-3 current rating?
The contactor is rated for 520 A AC-3 at 400 V, making it suitable for controlling large industrial motors.
Where is this contactor typically installed?
It is commonly installed inside industrial control panels, motor control centres, switchboards and OEM machinery.
Trusted for Industrial Power Control
Lovato B500 power contactors are widely used by panel builders, OEM manufacturers and industrial engineers for dependable switching of high-current motors and industrial electrical systems.
