Why Choose the Lovato 11B14500440 B145 Power Contactor?
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.
Key Advantages
- Heavy-duty three-pole contactor for industrial motor control.
- 150 A IEC AC-3 operating current for demanding motor loads.
- 440–480 V AC/DC operating coil for flexible control integration.
- 250 A conventional free-air thermal current.
- High insulation and impulse-withstand ratings for industrial installations.
- Screw-mounted design for secure electrical panel installation.
Key Features
- Lovato B145 power contactor series.
- Three normally open main power poles.
- 150 A IEC AC-3 operating current.
- 250 A IEC AC-1 current at temperatures up to 40°C.
- 440–480 V AC/DC control coil.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Operational frequency range from 25 to 400 Hz.
- Screw terminals and screw mounting for reliable installation.
Reliable Motor Control for Industrial Machinery
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.
Typical Applications
- Industrial motor control centres.
- Large pumps, fans and compressor systems.
- Conveyors and material handling equipment.
- Production and processing machinery.
- Industrial heating and general-purpose load switching.
- OEM machinery and electrical control panels.
