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11B1450048 – 3P CONTACTOR B145.00 48V
Lovato 11B1450048 three-pole industrial power contactor with 145 A AC-3 rating and 48 V AC control coil for industrial motor control applications.
Why Choose the Lovato 11B1450048 B145 Power Contactor?
The Lovato 11B1450048 is a heavy-duty three-pole power contactor designed for reliable switching of industrial motors and high-current electrical loads. Part of the proven Lovato B145 contactor series, this model delivers an IEC AC-3 operating current of 150 A and features a versatile 48 V AC/DC operating coil, making it suitable for modern industrial automation and motor control systems.
Built for demanding industrial environments, the B145 contactor combines robust construction with excellent electrical and mechanical endurance. Its AC/DC coil allows operation from either alternating-current or direct-current control supplies, providing flexibility for machine builders, OEMs and panel manufacturers.
With a conventional free-air thermal current of 250 A, a rated insulation voltage of 1000 V and a rated motor power of up to 80 kW at 400 V AC-3, the 11B1450048 provides dependable performance for industrial machinery, pumps, conveyors and production equipment.
Key Advantages
- Heavy-duty three-pole contactor for industrial motor control.
- 150 A IEC AC-3 operating current for demanding applications.
- 48 V AC/DC operating coil for flexible control integration.
- 250 A conventional thermal current.
- Suitable for high-power industrial motors and automation equipment.
- 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 AC-1 conventional thermal current.
- 48 V AC/DC control coil.
- 80 kW motor rating at 400 V AC-3.
- 1000 V rated insulation voltage.
- 8 kV rated impulse withstand voltage.
- Operational frequency range from 25 to 400 Hz.
Reliable Motor Control for Industrial Machinery
Power contactors such as the Lovato 11B1450048 provide electrically controlled switching for high-power three-phase motors and industrial electrical loads. Its 150 A AC-3 rating makes it suitable for demanding applications including conveyors, compressors, pumps and heavy manufacturing equipment.
The 48 V AC/DC operating coil provides excellent flexibility for industrial control systems while maintaining dependable switching performance and long operational life in demanding environments.
Typical Applications
- Industrial motor control centres.
- Conveyor and material handling systems.
- Pumps, compressors and ventilation equipment.
- Production and processing machinery.
- OEM automation equipment.
- Industrial electrical control panels.
Technical Specifications
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| Coil Voltage Range | 42–48 V | |
|---|---|---|
| Power | 75 kW | |
| Current | 145 A | |
| Voltage | 48 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 3-pole | |
| Device Type | Contactor | |
| Coil Type | AC | |
| Series | BF145 | |
| Product type | Three-pole power contactor | |
| Rated operational current (AC-3) | 145 A | |
| Maximum operational voltage | 690 V AC | |
| Control coil voltage | 48 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 |
Frequently Asked Questions
What is the Lovato 11B1450048 used for?
It is designed for switching three-phase motors and other high-current electrical loads in industrial automation and motor control applications.
What is the AC-3 current rating?
The contactor has an IEC AC-3 operating current rating of 150 A.
What control voltage does this contactor require?
The operating coil is designed for a 48 V AC/DC control supply.
Can the coil operate on both AC and DC?
Yes. The universal AC/DC coil is designed to operate from either a 48 V AC or 48 V DC control supply.
Where is this contactor typically installed?
It is commonly installed inside industrial electrical panels, motor control centres and OEM machinery for reliable switching of three-phase motors.
Trusted by Industrial Control Professionals
Lovato Electric B145 contactors are trusted by machine builders, panel manufacturers and automation engineers for dependable motor switching, long service life and reliable industrial performance.
