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11B14540048 – 4P CONTACTOR B145.4.00 48V
Lovato 11B14540048 four-pole industrial contactor with 250 A AC-1 current rating and 48 V AC/DC coil for industrial automation and power switching applications.
Why Choose the Lovato 11B14540048 Four-Pole Power Contactor?
The Lovato 11B14540048 is a heavy-duty four-pole industrial power contactor designed for dependable switching of high-current electrical loads in motor control, power distribution and industrial automation systems. As part of the proven Lovato B145 contactor series, it delivers outstanding switching performance, long service life and reliable operation in demanding industrial environments.
Engineered for OEM machine builders, panel manufacturers and industrial maintenance professionals, this power contactor features robust contact materials and an efficient electromagnetic operating mechanism for reliable performance during frequent switching operations. Its 48 V AC/DC control coil offers excellent compatibility with modern industrial control systems.
With a 250 A AC-1 thermal current rating, a 150 A AC-3 operational current, four normally open (4NO) main contacts and a 48 V AC/DC operating coil, the 11B14540048 is ideally suited for switching large motors, resistive loads and industrial power circuits. Its screw-mounted construction enables secure installation within electrical control panels and switchboards.
Key Advantages
- Heavy-duty four-pole industrial contactor for demanding switching applications.
- 250 A AC-1 thermal current with 150 A AC-3 operational rating.
- 48 V AC/DC control coil suitable for industrial automation systems.
- Four normally open (4NO) main contacts.
- Excellent electrical and mechanical endurance.
- Ideal for industrial automation, power distribution and motor control.
Key Features
- Lovato B145 power contactor series.
- Four-pole (4NO) configuration.
- 250 A conventional thermal current (AC-1).
- 150 A operational current (AC-3).
- 48 V AC/DC operating coil.
- 1000 V rated insulation voltage (Ui).
- 690 V maximum operational voltage.
- Heavy-duty screw terminal connections.
Reliable Switching for Industrial Power Systems
Industrial contactors such as the Lovato B145 series provide dependable switching of motors, heating equipment and high-current electrical circuits. Their robust construction ensures reliable performance while reducing maintenance requirements and helping maximise equipment uptime.
The 11B14540048 is suitable for installation within industrial control panels, motor control centres, OEM machinery, renewable energy systems and power distribution equipment where dependable high-current switching is essential.
Typical Applications
- Industrial motor starters and motor control centres.
- Power distribution equipment.
- Industrial automation systems.
- Renewable energy installations.
- Pumps, conveyors and production machinery.
- OEM electrical control panels and switchboards.
Technical Specifications
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| Coil Type | AC, AC/DC, DC | |
|---|---|---|
| Coil Voltage Range | 42–48 V | |
| Power | 80 kW | |
| Current | 150 A | |
| Voltage | 48 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 4-pole | |
| Device Type | Contactor | |
| Current AC-1 | 250 A | |
| Series | B145 | |
| Product type | Four-pole industrial contactor | |
| Rated thermal current (AC-1) | 250 A | |
| Rated operational current (AC-3 at 400 V) | 150 A | |
| Rated operational current (AC-4 at 400 V) | 57 A | |
| Maximum operational voltage | 690 V AC | |
| Control coil voltage | 48 V AC/DC | |
| Number of poles | 4 | |
| Main contacts | 4 NO | |
| Rated motor power at 400 V AC-3 | 80 kW | |
| Mounting type | Screw mounting | |
| Protection rating | IP20 terminals | |
| Operating temperature | -50 °C to +70 °C | |
| Weight | approx. 6.28 kg | |
| Standards | IEC/EN 60947-1, IEC/EN 60947-4-1 |
Frequently Asked Questions
What is the Lovato 11B14540048 used for?
This contactor is designed for switching high-current motors and industrial electrical loads within automation, motor control and power distribution systems.
How many poles does this contactor have?
The unit features a four-pole (4NO) main contact configuration.
What control voltage does this model require?
The operating coil is rated for 48 V AC/DC.
What current rating does the contactor support?
It provides a 250 A AC-1 thermal current rating together with a 150 A AC-3 operational current rating.
Where is this contactor typically installed?
It is typically installed inside industrial control panels, switchboards, motor control centres and OEM machinery.
Trusted by Industrial Engineers Worldwide
Lovato power contactors are trusted by machine builders, panel manufacturers and industrial engineers worldwide for dependable switching performance, robust construction and long operational service life.
