Lovato 11B1250424110 four-pole industrial power contactor with 1250 A AC-1 current rating and 110–125 V AC control coil for industrial power switching applications.
£9,863.58
The Lovato 11B1250424110 is a heavy-duty four-pole power contactor engineered for dependable switching of exceptionally high-current industrial electrical loads. Part of the robust Lovato B1250 contactor series, this model provides an IEC AC-1 operating current rating of 1250 A and features a 110–125 V AC, 50/60 Hz operating coil.
Designed for demanding industrial power-control applications, the B1250 contactor combines substantial switching capacity with reliable mechanical and electrical performance. Its four normally open main poles enable simultaneous control of four conductors, while the integrated 2NO + 4NC auxiliary contacts support signalling, electrical interlocking and control-system feedback.
With a conventional free-air thermal current of 1250 A at temperatures up to 40°C, a rated insulation voltage of 1000 V and an impulse withstand voltage of 8 kV, the 11B1250424110 is suitable for high-power switchboards, industrial heating systems, distribution equipment and heavy process machinery.
Power contactors such as the Lovato 11B1250424110 allow high-current industrial loads to be switched using a lower-power electrical control circuit. Its four-pole design enables multiple conductors to be switched together, making it suitable for three-phase systems that also require neutral switching and other multi-pole power-control arrangements.
The integrated auxiliary contacts can provide contactor status indication, electrical interlocking and feedback to automation equipment. Combined with its high AC-1 current rating, robust construction and screw-mounted installation, the B1250 contactor supports dependable operation in heavy industrial power systems.
| Voltage | 125 V |
|---|---|
| Phase | Three Phase |
| IP Rating | IP00 |
| Series | B1250 |
| Product type | Four-pole power contactor |
| Rated thermal current (Ith AC-1) | 1250 A |
| Operational voltage | up to 690 V AC |
| Control coil voltage | 110–125 V AC |
| Number of poles | 4 |
| Auxiliary contacts | 2NO + 4NC |
| Operational frequency | 25–400 Hz |
| Protection rating | IP00 |
| Mounting type | Screw mounting |
| Mechanical life | 5,000,000 operations |
| Electrical life | 700,000 operations |
| Operating temperature | -50 °C to +70 °C |
| Weight | approx. 57.5 kg |
It is used for switching high-current four-pole electrical loads in industrial power-distribution, heating, machinery and automation systems.
The contactor has a conventional free-air thermal and IEC AC-1 operating current rating of 1250 A at temperatures up to 40°C.
The operating coil is designed for a 110–125 V AC, 50/60 Hz control supply.
The 11B1250424110 has four normally open main power poles, allowing four conductors to be switched simultaneously.
Yes. It includes 2 normally open and 4 normally closed auxiliary contacts for signalling, feedback and electrical interlocking.
Lovato Electric B1250 contactors provide the high current capacity, robust construction and dependable switching performance required by industrial panel builders, system integrators and electrical engineers.{ "@context": "https://schema.org/", "@type": "Product", "name": "Lovato 11B1250424110 B1250 Four-Pole Power Contactor 1250A", "sku": "11B1250424110", "mpn": "11B1250424110", "brand": { "@type": "Brand", "name": "Lovato Electric" }, "category": "Power Contactors", "description": "Lovato 11B1250424110 B1250 four-pole power contactor with a 1250 A AC-1 rating, 110–125 V AC coil and integrated 2NO plus 4NC auxiliary contacts for heavy-duty industrial power switching.", "additionalProperty": [ { "@type": "PropertyValue", "name": "AC-1 operating current", "value": "1250 A at 40°C" }, { "@type": "PropertyValue", "name": "Control coil voltage", "value": "110–125 V AC" }, { "@type": "PropertyValue", "name": "Number of poles", "value": "4" }, { "@type": "PropertyValue", "name": "Auxiliary contacts", "value": "2NO + 4NC" }, { "@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 11B1250424110 used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is used for switching high-current four-pole electrical loads in industrial power-distribution, heating, machinery and automation systems." } }, { "@type": "Question", "name": "What is the current rating of this contactor?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor has a conventional free-air thermal and IEC AC-1 operating current rating of 1250 A at temperatures up to 40°C." } }, { "@type": "Question", "name": "What control voltage does the contactor require?", "acceptedAnswer": { "@type": "Answer", "text": "The operating coil is designed for a 110–125 V AC, 50/60 Hz control supply." } }, { "@type": "Question", "name": "How many main poles does this contactor have?", "acceptedAnswer": { "@type": "Answer", "text": "The 11B1250424110 has four normally open main power poles, allowing four conductors to be switched simultaneously." } }, { "@type": "Question", "name": "Does the contactor include auxiliary contacts?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. It includes 2 normally open and 4 normally closed auxiliary contacts for signalling, feedback and electrical interlocking." } } ] }
● 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...