Lovato 11B400400220 four-pole industrial contactor with 550A AC1 thermal current rating, 420A AC3 operational current and 220…240V AC/DC universal control coil for industrial automation and motor control systems.
£3,679.49
The LOVATO Electric 11B400400220 is a heavy-duty four-pole industrial power contactor designed for reliable switching of high-current electrical loads. Part of the robust LOVATO B400 contactor series, it offers a conventional free-air thermal current rating of 550 A (AC-1) and an operational current of 420 A (AC-3), making it ideal for demanding industrial motor control, power distribution and automation systems.
Equipped with a versatile 220–240 V AC/DC control coil, this contactor integrates easily into both AC and DC control circuits. Its four-pole configuration enables simultaneous switching of four conductors, making it particularly suitable for applications requiring neutral switching or complete isolation of three-phase power circuits.
Designed for dependable long-term operation, the 11B400400220 combines a robust screw-mounted construction, high insulation performance and long mechanical life with compliance to major IEC, UL and CSA standards, ensuring reliable performance in industrial control panels, switchboards and OEM machinery.
Four-pole contactors provide safe switching of high-current electrical circuits using a low-power control signal. They enable PLCs, relays, pushbuttons and automation controllers to operate industrial loads while maintaining electrical isolation between the control and power circuits.
The LOVATO B400 series is engineered for demanding industrial environments where high current capacity, dependable switching and long service life are essential. Its four-pole configuration makes it ideal for power distribution, neutral switching and heavy-duty motor control applications.
| Power | 225 kW |
|---|---|
| Current | 420 A |
| Voltage | 240 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | B400 Contactors |
| Product type | Four-pole industrial contactor |
| Number of poles | 4 |
| Contact configuration | 4 NO |
| IEC thermal current Ith (AC1) | 550 A |
| Operational current AC3 at 400 V | 420 A |
| Rated operational power AC3 at 400 V | 225 kW |
| UL/CSA horsepower rating at 480 V | 350 HP |
| Control coil voltage | 220...240 V AC/DC |
| Type of coil | AC/DC universal coil |
| Rated insulation voltage | 690 V |
| Impulse withstand voltage | 8 kV |
| Supply frequency | 50/60 Hz |
| Mounting type | Screw mounting |
| Terminal type | Bolt connection |
| Protection rating | IP20 |
| Operating temperature | -50 °C to +70 °C |
| Weight | approx. 11.12 kg |
| Dimensions | approx. 208 × 196 × 227 mm |
| EAN | 8013975026717 |
| HS code | 85365080 |
| Compliance | IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 n° 60947-1, CSA C22.2 n° 60947-4-1 |
It is used for switching high-current four-pole electrical circuits in industrial motor control, power distribution and automation systems.
It offers a conventional thermal current rating of 550 A (AC-1) and an operational current of 420 A (AC-3).
This model is equipped with a 220–240 V AC/DC control coil.
The 11B400400220 has four normally open main poles, allowing simultaneous switching of four conductors.
It is commonly installed in industrial control panels, switchboards, motor control centres and heavy-duty automation systems.
LOVATO Electric B400 contactors are trusted worldwide by panel builders, OEM manufacturers and industrial engineers for dependable switching performance, high current capability and long operating life in demanding industrial environments.{ "@context": "https://schema.org/", "@type": "Product", "name": "LOVATO Electric 11B400400220 Four-Pole Contactor 550 A 220–240 V AC/DC", "sku": "11B400400220", "mpn": "11B400400220", "gtin13": "8013975026717", "brand": { "@type": "Brand", "name": "LOVATO Electric" }, "category": "Industrial Contactors", "description": "LOVATO Electric B400 four-pole industrial contactor with 550 A AC-1 rating, 420 A AC-3 rating and 220–240 V AC/DC control coil.", "additionalProperty": [ { "@type": "PropertyValue", "name": "Number of poles", "value": "4" }, { "@type": "PropertyValue", "name": "Main contacts", "value": "4 NO" }, { "@type": "PropertyValue", "name": "Thermal current", "value": "550 A AC-1" }, { "@type": "PropertyValue", "name": "Operational current", "value": "420 A AC-3" }, { "@type": "PropertyValue", "name": "Coil voltage", "value": "220–240 V AC/DC" }, { "@type": "PropertyValue", "name": "Motor rating", "value": "225 kW at 400 V" }, { "@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 Electric 11B400400220 used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is used for switching high-current four-pole electrical circuits in industrial motor control, power distribution and automation systems." } }, { "@type": "Question", "name": "What current rating does this contactor have?", "acceptedAnswer": { "@type": "Answer", "text": "It offers a conventional thermal current rating of 550 A (AC-1) and an operational current of 420 A (AC-3)." } }, { "@type": "Question", "name": "What control voltage does the contactor use?", "acceptedAnswer": { "@type": "Answer", "text": "This model is equipped with a 220–240 V AC/DC control coil." } }, { "@type": "Question", "name": "How many poles does this contactor have?", "acceptedAnswer": { "@type": "Answer", "text": "The 11B400400220 has four normally open main poles, allowing simultaneous switching of four conductors." } }, { "@type": "Question", "name": "Where is this contactor typically installed?", "acceptedAnswer": { "@type": "Answer", "text": "It is commonly installed in industrial control panels, switchboards, motor control centres 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...