Lovato 11B145400440 four-pole industrial contactor with 250 A AC-1 current rating and 440–480 V AC/DC coil for industrial automation and power switching applications.
£1,271.82
The Lovato 11B145400440 is a robust four-pole industrial power contactor designed for reliable switching of high-current electrical loads in motor control, power distribution and industrial automation systems. As part of the proven Lovato B145 contactor series, it delivers dependable performance, long electrical endurance and reliable operation in demanding industrial environments.
Designed for OEM machine builders, panel manufacturers and industrial maintenance engineers, this contactor combines durable contact materials with a high-performance electromagnetic operating mechanism to ensure reliable switching throughout its service life. The integrated 440–480 V AC/DC operating coil makes it suitable for higher-voltage industrial control circuits.
With a 250 A AC-1 thermal current rating, a 150 A AC-3 operational current, four normally open (4NO) main contacts and a 440–480 V AC/DC control coil, the 11B145400440 is ideal for switching large motors, heating systems and industrial power circuits. Its screw-mounted construction enables secure installation within electrical control panels and switchboards.
Industrial contactors such as the Lovato B145 series provide safe and dependable switching of high-current motors, resistive loads and industrial electrical circuits. Their robust construction helps minimise maintenance while ensuring long-term reliability in demanding industrial applications.
The 11B145400440 is ideal for installation within industrial control panels, motor control centres, OEM machinery and power distribution systems where dependable high-current switching is essential.
| Power | 80 kW |
|---|---|
| Current | 150 A |
| Voltage | 480 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | B145 |
| Product type | Four-pole industrial contactor |
| Rated thermal current (AC-1) | 250 A |
| Rated operational current (AC-3 at 400 V) | 150 A |
| Rated operational current (AC-4 at 400 V) | 57 A |
| Maximum operational voltage | 690 V AC |
| Control coil voltage | 440–480 V AC/DC |
| Number of poles | 4 |
| Main contacts | 4 NO |
| Rated motor power at 400 V AC-3 | 80 kW |
| Mounting type | Screw mounting |
| Protection rating | IP20 terminals |
| Operating temperature | -50 °C to +70 °C |
| Weight | approx. 6.34 kg |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1 |
This contactor is designed for switching high-current motors and industrial electrical loads within automation, motor control and power distribution systems.
The unit features a four-pole (4NO) main contact configuration.
The operating coil is rated for 440–480 V AC/DC.
It provides a 250 A AC-1 thermal current rating together with a 150 A AC-3 operational current rating.
It is typically installed inside industrial control panels, switchboards, motor control centres and OEM machinery.
Lovato power contactors are trusted by machine builders, panel manufacturers and industrial engineers worldwide for reliable switching performance, robust construction and long service life.{ "@context": "https://schema.org/", "@type": "Product", "name": "Lovato 11B145400440 Four-Pole Power Contactor", "sku": "11B145400440", "mpn": "11B145400440", "brand": { "@type": "Brand", "name": "Lovato Electric" }, "category": "Power Contactors", "description": "Lovato 11B145400440 four-pole industrial power contactor with 250 A AC-1 rating, 150 A AC-3 operational current and 440–480 V AC/DC control coil for industrial motor control and power distribution.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Main contacts", "value": "4 NO" }, { "@type": "PropertyValue", "name": "Thermal current", "value": "250 A AC-1" }, { "@type": "PropertyValue", "name": "Operational current", "value": "150 A AC-3" }, { "@type": "PropertyValue", "name": "Control coil voltage", "value": "440–480 V AC/DC" }, { "@type": "PropertyValue", "name": "Rated insulation voltage", "value": "1000 V" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the Lovato 11B145400440 used for?", "acceptedAnswer": { "@type": "Answer", "text": "This contactor is designed for switching high-current motors and industrial electrical loads within automation, motor control and power distribution systems." } }, { "@type": "Question", "name": "How many poles does this contactor have?", "acceptedAnswer": { "@type": "Answer", "text": "The unit features a four-pole (4NO) main contact configuration." } }, { "@type": "Question", "name": "What control voltage does this model require?", "acceptedAnswer": { "@type": "Answer", "text": "The operating coil is rated for 440–480 V AC/DC." } }, { "@type": "Question", "name": "What current rating does the contactor support?", "acceptedAnswer": { "@type": "Answer", "text": "It provides a 250 A AC-1 thermal current rating together with a 150 A AC-3 operational current rating." } }, { "@type": "Question", "name": "Where is this contactor typically installed?", "acceptedAnswer": { "@type": "Answer", "text": "It is typically installed inside industrial control panels, switchboards, motor control centres and OEM machinery." } } ] }
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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...