Lovato 11B31040024 four-pole industrial contactor with 450A AC1 thermal current rating, 320A AC3 operational current and 24V AC/DC universal control coil for industrial automation and motor control systems.
£3,043.12
The LOVATO Electric 11B31040024 is a heavy-duty four-pole industrial power contactor designed for reliable switching of high-current electrical loads. Part of the proven LOVATO B310 contactor series, it delivers a conventional thermal current rating of 450 A (AC-1) and an operational current of 320 A (AC-3), making it ideal for industrial motor control, power distribution and heavy-duty automation systems.
This version is fitted with a versatile 24 V AC/DC control coil, allowing seamless integration into both AC and DC control circuits. The 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.
Engineered for demanding industrial environments, the 11B31040024 combines robust screw-mounted construction, high insulation performance and long mechanical life with compliance to major IEC, UL and CSA standards, ensuring dependable operation in control panels, switchboards and OEM machinery.
Four-pole contactors provide safe switching of high-current power circuits using a low-power control signal. They allow PLCs, relays, pushbuttons and automation controllers to safely operate industrial loads while electrically isolating the control and power circuits.
The LOVATO B310 series is engineered for demanding industrial installations where dependable switching, high current capacity and long service life are essential. Its four-pole configuration makes it suitable for power distribution, neutral switching and heavy-duty motor control applications.
| Power | 170 kW |
|---|---|
| Current | 320 A |
| Voltage | 24 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | B310 Contactors |
| Product type | Four-pole industrial contactor |
| Number of poles | 4 |
| Contact configuration | 4 NO |
| IEC thermal current Ith (AC1) | 450 A |
| Operational current AC3 at 400 V | 320 A |
| Rated operational power AC3 at 400 V | 170 kW |
| Operational current AC4 at 400 V | 110 A |
| UL/CSA horsepower rating at 480 V | 250 HP |
| Control coil voltage | 24 V AC/DC |
| Type of coil | AC/DC universal coil |
| Rated insulation voltage | 1000 V |
| Impulse withstand voltage | 8 kV |
| Operational frequency | 25 to 400 Hz |
| Mounting type | Screw mounting |
| Terminal type | Bolt connection |
| Protection rating | IP20 |
| Operating temperature | -50 °C to +70 °C |
| Weight | approx. 11.36 kg |
| Dimensions | approx. 208 × 196 × 227 mm |
| EAN | 8013975067154 |
| 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 450 A (AC-1) and an operational current of 320 A (AC-3).
This model is equipped with a 24 V AC/DC control coil.
The 11B31040024 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 B310 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 11B31040024 Four-Pole Contactor 450 A 24 V AC/DC", "sku": "11B31040024", "mpn": "11B31040024", "gtin13": "8013975067154", "brand": { "@type": "Brand", "name": "LOVATO Electric" }, "category": "Industrial Contactors", "description": "LOVATO Electric B310 four-pole industrial contactor with 450 A AC-1 rating, 320 A AC-3 rating and 24 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": "450 A AC-1" }, { "@type": "PropertyValue", "name": "Operational current", "value": "320 A AC-3" }, { "@type": "PropertyValue", "name": "Coil voltage", "value": "24 V AC/DC" }, { "@type": "PropertyValue", "name": "Motor rating", "value": "170 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 11B31040024 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 450 A (AC-1) and an operational current of 320 A (AC-3)." } }, { "@type": "Question", "name": "What control voltage does the contactor use?", "acceptedAnswer": { "@type": "Answer", "text": "This model is equipped with a 24 V AC/DC control coil." } }, { "@type": "Question", "name": "How many poles does this contactor have?", "acceptedAnswer": { "@type": "Answer", "text": "The 11B31040024 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." } } ] }
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...