Lovato 11B50040048 heavy-duty four-pole industrial contactor with 520 A AC3 operational current rating and 48 V AC/DC operating coil for industrial motor control and power switching applications.
£4,816.71
The Lovato 11B50040048 is a heavy-duty 4-pole power contactor designed for reliable switching of high-current industrial loads. As part of the robust Lovato B500 contactor series, it provides dependable performance for demanding motor control, power distribution and industrial automation applications.
Designed for OEM machine builders, panel manufacturers and industrial maintenance professionals, this contactor combines a high switching capacity with a versatile 48 V AC/DC control coil. Its rugged construction, long electrical life and compliance with international standards make it ideal for continuous industrial operation.
With an IEC AC-1 thermal current rating of 700 A, an AC-3 operational current of 520 A at 400 V and a 48 V AC/DC operating coil, the 11B50040048 is perfectly suited for controlling large motors, industrial machinery and heavy-duty electrical systems.
The Lovato B500 series is engineered to switch large industrial electrical loads safely and efficiently. Its robust contact system delivers dependable operation for heavy-duty motors, power distribution systems and industrial automation equipment while maintaining excellent durability under demanding operating conditions.
Designed to meet international industrial standards, the 11B50040048 offers long service life, excellent insulation characteristics and reliable operation in manufacturing plants, infrastructure projects and OEM machinery.
| Power | 290 kW |
|---|---|
| Current | 700 A |
| Voltage | 48 V |
| Phase | Three Phase |
| 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 | 755 kW |
| Type of coil | AC/DC operating coil |
| Rated coil voltage | 48 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. 21.55 kg |
| Dimensions | Approx. 270 × 259 × 263 mm |
| EAN | 8013975048108 |
| 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 |
It is a heavy-duty 4-pole power contactor designed for switching high-current motors, industrial machinery and power distribution systems.
The 11B50040048 features four normally open (4 NO) main poles.
This model is equipped with a 48 V AC/DC operating coil.
The contactor is rated for 520 A AC-3 at 400 V and is suitable for switching motors up to approximately 290 kW.
It is commonly installed in industrial control panels, motor control centres, switchboards and heavy-duty automation systems.
Lovato B500 power contactors are trusted worldwide by OEM manufacturers, panel builders and industrial engineers for reliable high-current switching and dependable motor control.{ "@context": "https://schema.org/", "@type": "Product", "name": "Lovato 11B50040048 4-Pole Power Contactor", "sku": "11B50040048", "mpn": "11B50040048", "brand": { "@type": "Brand", "name": "Lovato Electric" }, "category": "Power Contactors", "description": "Lovato 11B50040048 four-pole industrial power contactor with 700 A AC-1 rating, 520 A AC-3 rating and 48 V AC/DC control coil for heavy-duty motor control and industrial power switching.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Number of poles", "value": "4" }, { "@type": "PropertyValue", "name": "IEC AC-1 current", "value": "700 A" }, { "@type": "PropertyValue", "name": "IEC AC-3 current", "value": "520 A" }, { "@type": "PropertyValue", "name": "Motor power", "value": "290 kW" }, { "@type": "PropertyValue", "name": "Coil voltage", "value": "48 V AC/DC" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the Lovato 11B50040048 used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is a heavy-duty four-pole power contactor designed for switching high-current motors, industrial machinery and power distribution systems." } }, { "@type": "Question", "name": "How many poles does this contactor have?", "acceptedAnswer": { "@type": "Answer", "text": "The 11B50040048 features four normally open main poles." } }, { "@type": "Question", "name": "What coil voltage does this contactor require?", "acceptedAnswer": { "@type": "Answer", "text": "This model is equipped with a 48 V AC/DC operating coil." } }, { "@type": "Question", "name": "What is the AC-3 current rating?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor is rated for 520 A AC-3 at 400 V and is suitable for switching motors up to approximately 290 kW." } }, { "@type": "Question", "name": "Where is this contactor typically installed?", "acceptedAnswer": { "@type": "Answer", "text": "It is commonly installed in industrial control panels, motor control centres, switchboards and heavy-duty automation systems." } } ] }
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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...