Lovato 11B14540024 four-pole industrial contactor with 250 A AC-1 current rating and 24 V AC/DC coil for industrial automation and power switching applications.
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Why Choose the Lovato 11B14540024 Four-Pole Power Contactor?
The Lovato 11B14540024 is a heavy-duty four-pole industrial power contactor designed for reliable switching of high-current electrical loads in motor control, power distribution and industrial automation systems. Part of the robust Lovato B145 contactor series, it provides outstanding switching performance, long mechanical life and dependable operation in demanding industrial environments.
Built with durable contact materials and a powerful electromagnetic operating mechanism, this contactor is ideal for OEM machine builders, switchboard manufacturers and maintenance engineers requiring consistent operation under frequent switching conditions. The integrated 24 V AC/DC control coil offers excellent flexibility for 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 poles and a 24 V AC/DC operating coil, the 11B14540024 is perfectly suited for switching large motors, heating circuits and industrial power loads. Its screw-mounted construction enables secure installation within electrical panels and switchgear assemblies.
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.
24 V AC/DC control coil suitable for modern automation systems.
Four normally open (4NO) main contacts.
Long electrical and mechanical service life.
Ideal for industrial automation, motor control and power distribution.
Key Features
Lovato B145 power contactor series.
Four-pole (4NO) configuration.
250 A conventional thermal current (AC-1).
150 A operational current (AC-3).
24 V AC/DC operating coil.
1000 V rated insulation voltage (Ui).
690 V maximum operational voltage.
Heavy-duty screw terminal connections.
Technical Specifications
Manufacturer: Lovato Electric
Series: B145
Model: 11B14540024
Product type: Four-pole power contactor
Main contacts: 4 NO
Conventional thermal current (AC-1): 250 A
Rated operational current (AC-3): 150 A
Control coil voltage: 24 V AC/DC
Rated insulation voltage (Ui): 1000 V
Maximum operational voltage: 690 V AC
Frequency: 25–400 Hz
Protection rating: IP00 terminals
Mounting type: Screw mounting
Weight: Approx. 6.4 kg
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 maximising equipment uptime.
The 11B14540024 is designed for installation within industrial control panels, OEM machinery, motor control centres and power distribution equipment where reliable switching and long operating life are essential.
Typical Applications
Industrial motor starters and motor control centres.
Power distribution and switching equipment.
Industrial automation systems.
HVAC installations and compressor control.
Pumps, conveyors and manufacturing machinery.
OEM electrical control panels and switchboards.
Technical Specifications
Power
80 kW
Current
150 A
Voltage
24 V
Phase
Three Phase
IP Rating
IP20
Series
B145
Product type
Four-pole industrial contactor
Rated thermal current (AC-1)
250 A
Rated operational current (AC-3 400 V)
150 A
Maximum operational voltage
690 V AC
Control coil voltage
24 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. 6.4 kg
Standards
IEC/EN 60947-1, IEC/EN 60947-4-1
Frequently Asked Questions
What is the Lovato 11B14540024 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 contactor features a four-pole (4NO) configuration.
What control voltage does this model require?
The operating coil is rated for 24 V AC/DC, making it suitable for a wide variety of industrial control circuits.
What current rating does the contactor support?
It provides a 250 A AC-1 thermal current rating and 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 worldwide by machine builders, panel manufacturers and industrial engineers for reliable switching performance, robust construction and long operational life.
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Power
80 kW
Current
150 A
Voltage
24 V
Phase
Three Phase
IP Rating
IP20
Series
B145
Product type
Four-pole industrial contactor
Rated thermal current (AC-1)
250 A
Rated operational current (AC-3 400 V)
150 A
Maximum operational voltage
690 V AC
Control coil voltage
24 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. 6.4 kg
Standards
IEC/EN 60947-1, IEC/EN 60947-4-1
No documents available for this product.
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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...