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.
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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...