Lovato 11B145400110 four-pole industrial power contactor with 145 A AC-3 rating and 110 V AC control coil for industrial motor control and power switching applications.
£1,271.82
The Lovato 11B145400110 is a heavy-duty four-pole power contactor designed for dependable switching of high-current industrial electrical loads. Part of the established Lovato B145 contactor series, this model provides an IEC AC-1 operating current rating of 250 A and features a versatile 110–125 V AC/DC operating coil.
Its four-pole configuration enables four conductors to be switched simultaneously, making the contactor suitable for three-phase and neutral circuits, industrial heating systems and other multi-pole load-control applications. The AC/DC coil supports integration with either alternating-current or direct-current control systems within the specified voltage range.
With a rated insulation voltage of 1000 V, an impulse withstand voltage of 8 kV and a conventional free-air thermal current of 250 A at temperatures up to 40°C, the 11B145400110 provides robust performance for industrial switchboards, automation panels and heavy machinery.
Power contactors such as the Lovato 11B145400110 allow high-current electrical loads to be controlled through a lower-power automation circuit. Its four-pole design makes it suitable for applications where three phases and a neutral conductor must be switched together or where four separate power circuits require simultaneous operation.
The 110–125 V AC/DC operating coil provides flexibility for industrial control-system design. Combined with its substantial thermal-current rating, high insulation performance and robust screw-mounted construction, the B145 contactor supports dependable operation in demanding industrial environments.
| Power | 75 kW |
|---|---|
| Current | 145 A |
| Voltage | 110 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | BF145 |
| Product type | Four-pole power contactor |
| Rated operational current (AC-3) | 145 A |
| Maximum operational voltage | 690 V AC |
| Control coil voltage | 110 V AC |
| Number of poles | 4 |
| Frequency | 50 / 60 Hz |
| Rated motor power at 400 V | approx. 75 kW |
| Mounting type | DIN rail or screw mounting |
| Protection rating | IP20 terminals |
| Mechanical life | up to 10 million operations |
| Electrical life | up to 1 million operations |
| Operating temperature | -50 °C to +70 °C |
| Standards | IEC / EN 60947-4-1 |
It is used for switching high-current four-pole electrical loads in industrial power distribution, machinery, heating and automation systems.
The contactor has an IEC AC-1 operating current rating of 250 A at ambient temperatures up to 40°C.
The operating coil is designed for a 110–125 V AC/DC control supply.
The contactor has four main power poles, enabling four conductors to be switched simultaneously.
It is typically installed inside industrial switchboards, electrical control panels and machinery cabinets requiring reliable four-pole power switching.
Lovato Electric B145 contactors are used by panel builders, machine manufacturers and automation engineers for dependable high-current switching, robust electrical performance and flexible integration into industrial control systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "Lovato 11B145400110 B145 Four-Pole Power Contactor 250A", "sku": "11B145400110", "mpn": "11B145400110", "brand": { "@type": "Brand", "name": "Lovato Electric" }, "category": "Power Contactors", "description": "Lovato 11B145400110 B145 four-pole power contactor with a 250 A IEC AC-1 rating, 110–125 V AC/DC operating coil and 1000 V insulation rating for industrial load switching.", "additionalProperty": [ { "@type": "PropertyValue", "name": "AC-1 operating current", "value": "250 A at 40°C" }, { "@type": "PropertyValue", "name": "Control coil voltage", "value": "110–125 V AC/DC" }, { "@type": "PropertyValue", "name": "Number of poles", "value": "4" }, { "@type": "PropertyValue", "name": "Rated insulation voltage", "value": "1000 V" }, { "@type": "PropertyValue", "name": "Mounting type", "value": "Screw mounting" } ] } { "@context": "https://schema.org", "@type": "FAQPage", "inLanguage": "en-GB", "mainEntity": [ { "@type": "Question", "name": "What is the Lovato 11B145400110 used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is used for switching high-current four-pole electrical loads in industrial power distribution, machinery, heating and automation systems." } }, { "@type": "Question", "name": "What is the AC-1 current rating of this contactor?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor has an IEC AC-1 operating current rating of 250 A at ambient 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/DC control supply." } }, { "@type": "Question", "name": "How many poles does the 11B145400110 have?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor has four main power poles, enabling four conductors to be switched simultaneously." } }, { "@type": "Question", "name": "Where is this contactor typically installed?", "acceptedAnswer": { "@type": "Answer", "text": "It is typically installed inside industrial switchboards, electrical control panels and machinery cabinets requiring reliable four-pole power switching." } } ] }
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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...