Lovato 11B250400440 heavy-duty three-pole industrial contactor with 265A AC3 operational current rating and 440V AC control coil for industrial motor control systems.
£2,425.12
The Lovato 11B250400440 is a heavy-duty four-pole power contactor designed for reliable switching of high-current electrical loads in demanding industrial and commercial applications. Part of the trusted Lovato B250 contactor series, it is engineered for OEM machine builders, panel manufacturers and industrial automation professionals requiring dependable power control.
Featuring a robust 440–480 V AC/DC control coil, this contactor provides excellent electrical endurance, long mechanical life and reliable switching performance. Its heavy-duty construction makes it ideal for motor control, resistive loads, power distribution equipment and industrial automation systems.
With an AC-1 thermal current rating of 350 A, four normally open (4NO) main poles and a 440–480 V AC/DC operating coil, the 11B250400440 delivers dependable switching performance for demanding industrial installations.
The Lovato B250 series is designed for demanding industrial environments where dependable high-current switching is essential. Its durable contact system delivers long service life while helping reduce maintenance requirements and maximise equipment uptime.
With its integrated AC/DC operating coil and robust mechanical construction, the contactor integrates easily into industrial control panels, motor control centres and OEM machinery, delivering dependable switching performance under demanding operating conditions.
| Power | 140 kW |
|---|---|
| Current | 265 A |
| Voltage | 440 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 | 440 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 |
It is a four-pole industrial power contactor designed for switching high-current electrical loads in industrial automation, motor control and power distribution systems.
The contactor features four normally open (4NO) main power contacts.
The integrated operating coil is designed for 440–480 V AC/DC control voltage.
The contactor has a conventional thermal current rating of 350 A (AC-1) and an AC-3 operational current of 265 A at 400 V.
It is commonly installed inside industrial control panels, switchboards, motor control centres and heavy-duty automation equipment.
Lovato B250 contactors are trusted by electrical engineers, machine builders and panel manufacturers for dependable high-current switching, long operational life and reliable industrial performance.{ "@context": "https://schema.org/", "@type": "Product", "name": "Lovato 11B250400440 Four-Pole Power Contactor 350A", "sku": "11B250400440", "mpn": "11B250400440", "brand": { "@type": "Brand", "name": "Lovato Electric" }, "category": "Power Contactors", "description": "Lovato 11B250400440 four-pole industrial power contactor featuring a 350A AC-1 rating, four normally open poles and a 440–480 V AC/DC control coil for demanding industrial switching applications.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Current rating", "value": "350 A" }, { "@type": "PropertyValue", "name": "Control voltage", "value": "440–480 V AC/DC" }, { "@type": "PropertyValue", "name": "Number of poles", "value": "4" }, { "@type": "PropertyValue", "name": "Contact configuration", "value": "4 NO" }, { "@type": "PropertyValue", "name": "Protection rating", "value": "IP00" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the Lovato 11B250400440 used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is a four-pole industrial power contactor designed for switching high-current electrical loads in industrial automation, motor control and power distribution systems." } }, { "@type": "Question", "name": "How many poles does this contactor have?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor features four normally open (4NO) main power contacts." } }, { "@type": "Question", "name": "What control voltage does the coil require?", "acceptedAnswer": { "@type": "Answer", "text": "The integrated operating coil is designed for 440–480 V AC/DC control voltage." } }, { "@type": "Question", "name": "What current rating does this contactor support?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor has a conventional thermal current rating of 350 A (AC-1) and an AC-3 operational current of 265 A at 400 V." } }, { "@type": "Question", "name": "Where is the Lovato 11B250400440 typically installed?", "acceptedAnswer": { "@type": "Answer", "text": "It is commonly installed inside industrial control panels, switchboards, motor control centres and heavy-duty automation equipment." } } ] }
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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...