Lovato 11B14500440 three-pole industrial power contactor with 145 A AC-3 rating and 440 V AC control coil for industrial motor control applications.
£964.47
The Lovato 11B14500440 is a heavy-duty three-pole power contactor designed for reliable switching and control of industrial motors and high-current electrical loads. Part of the established Lovato B145 contactor series, this model provides an IEC AC-3 operating current rating of 150 A and features a versatile 440–480 V AC/DC operating coil.
Engineered for industrial automation, machinery and motor control centres, the B145 contactor combines robust construction with dependable electrical and mechanical performance. Its AC/DC coil enables operation from either alternating-current or direct-current control supplies within the specified voltage range, simplifying integration into different control-system designs.
With a conventional free-air thermal current of 250 A, a rated insulation voltage of 1000 V and an impulse withstand voltage of 8 kV, the 11B14500440 is suitable for demanding motor-switching and general-purpose load-control applications. Its screw-mounted construction provides secure installation within industrial electrical panels and machine cabinets.
Power contactors such as the Lovato 11B14500440 allow high-current three-phase motors and industrial loads to be controlled using a lower-power electrical control circuit. Its 150 A AC-3 operating rating makes it suitable for demanding machinery, material handling equipment and production systems.
The dual AC/DC coil provides additional flexibility when designing or maintaining industrial control systems. Combined with its substantial thermal-current capacity, high insulation rating and robust screw-mounted construction, the B145 contactor supports reliable operation in demanding electrical environments.
| Power | 75 kW |
|---|---|
| Current | 145 A |
| Voltage | 440 V |
| Phase | Three Phase |
| IP Rating | IP20 |
| Series | BF145 |
| Product type | Three-pole power contactor |
| Rated operational current (AC-3) | 145 A |
| Maximum operational voltage | 690 V AC |
| Control coil voltage | 440 V AC |
| Number of poles | 3 |
| 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 three-phase motors and other high-current electrical loads in industrial machinery, automation and motor control systems.
The contactor has an IEC AC-3 operating current rating of 150 A at voltages up to 440 V and ambient temperatures up to 55°C.
The operating coil is designed for a 440–480 V AC/DC control supply.
Yes. The contactor has an AC/DC coil that can operate from either an alternating-current or direct-current supply within the specified 440–480 V range.
The contactor uses screw mounting and screw terminals for secure installation inside industrial electrical panels, machinery cabinets and motor control centres.
Lovato Electric B-series contactors are used by panel builders, machine manufacturers and automation engineers for dependable motor switching, robust electrical performance and reliable integration into industrial control systems.{ "@context": "https://schema.org/", "@type": "Product", "name": "Lovato 11B14500440 B145 Three-Pole Power Contactor 150A", "sku": "11B14500440", "mpn": "11B14500440", "brand": { "@type": "Brand", "name": "Lovato Electric" }, "category": "Power Contactors", "description": "Lovato 11B14500440 B145 three-pole power contactor with a 150 A IEC AC-3 operating rating, 250 A thermal current and 440–480 V AC/DC control coil for industrial motor switching.", "additionalProperty": [ { "@type": "PropertyValue", "name": "AC-3 operating current", "value": "150 A" }, { "@type": "PropertyValue", "name": "Thermal current", "value": "250 A" }, { "@type": "PropertyValue", "name": "Control coil voltage", "value": "440–480 V AC/DC" }, { "@type": "PropertyValue", "name": "Number of poles", "value": "3" }, { "@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 11B14500440 used for?", "acceptedAnswer": { "@type": "Answer", "text": "It is used for switching three-phase motors and other high-current electrical loads in industrial machinery, automation and motor control systems." } }, { "@type": "Question", "name": "What is the AC-3 operating current of this contactor?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor has an IEC AC-3 operating current rating of 150 A at voltages up to 440 V and ambient temperatures up to 55°C." } }, { "@type": "Question", "name": "What control voltage does the contactor require?", "acceptedAnswer": { "@type": "Answer", "text": "The operating coil is designed for a 440–480 V AC/DC control supply." } }, { "@type": "Question", "name": "Can the coil operate on both AC and DC supplies?", "acceptedAnswer": { "@type": "Answer", "text": "Yes. The contactor has an AC/DC coil that can operate from either an alternating-current or direct-current supply within the specified 440–480 V range." } }, { "@type": "Question", "name": "How is the Lovato 11B14500440 installed?", "acceptedAnswer": { "@type": "Answer", "text": "The contactor uses screw mounting and screw terminals for secure installation inside industrial electrical panels, machinery cabinets and motor control centres." } } ] }
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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...