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11B145400220 – 4P CONTACTOR B145.4.00 220/240
Lovato 11B145400220 four-pole industrial power contactor with 145 A AC-3 rating and 220 V AC control coil for industrial motor control and power switching applications.
Why Choose the Lovato 11B145400220 Four-Pole Power Contactor?
The Lovato 11B145400220 is a heavy-duty four-pole industrial power contactor engineered for reliable 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 is designed to provide dependable performance, long service life and excellent switching reliability in demanding industrial environments.
Featuring a robust electromagnetic design and high-quality contact materials, this contactor is ideal for OEM machine builders, panel manufacturers and maintenance engineers requiring consistent performance under frequent switching operations. Its AC/DC control coil simplifies installation while offering flexibility across a wide range of industrial control applications.
With a 250 A AC-1 thermal current rating, a 150 A AC-3 operational current, four normally open (4NO) main poles and a 220–240 V AC/DC control coil, the 11B145400220 is perfectly suited to switching large motors, resistive loads and industrial power circuits. Its compact industrial design enables straightforward 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.
- 220–240 V AC/DC control coil for flexible industrial control circuits.
- Four normally open (4NO) main contacts.
- Reliable switching performance with long electrical and mechanical endurance.
- Suitable for industrial automation, motor control and power distribution systems.
Key Features
- Lovato B145 power contactor series.
- Four-pole (4NO) configuration.
- 250 A conventional thermal current (AC-1).
- 150 A operational current (AC-3).
- 220–240 V AC/DC operating coil.
- Rated insulation voltage up to 1000 V.
- Maximum operational voltage up to 690 V AC.
- Heavy-duty screw terminal connections for industrial installations.
Reliable Switching for Industrial Power Systems
Industrial contactors such as the Lovato B145 series provide safe, reliable switching of high-current electrical loads including motors, heating equipment and industrial power circuits. Their robust electromagnetic construction ensures dependable operation while helping to minimise downtime and maintenance requirements.
The 11B145400220 is designed for industrial control panels, OEM machinery, motor control centres and power distribution equipment where high switching performance and operational reliability are essential.
Typical Applications
- Industrial motor starters and motor control centres.
- Power distribution and switching equipment.
- Industrial automation systems.
- HVAC plants and compressor control.
- Pumps, conveyors and manufacturing machinery.
- OEM control panels and switchboards.
Technical Specifications
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| Coil Voltage Range | 200–250 V | |
|---|---|---|
| Power | 75 kW | |
| Current | 145 A | |
| Voltage | 220 V | |
| Phase | Three Phase | |
| IP Rating | IP20 | |
| Poles | 4-pole | |
| Device Type | Contactor | |
| Coil Type | AC | |
| Series | BF145 | |
| Product type | Four-pole power contactor | |
| Rated operational current (AC-3) | 145 A | |
| Maximum operational voltage | 690 V AC | |
| Control coil voltage | 220 V AC | |
| Number of poles | 4 | |
| 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 11B145400220 used for?
This contactor is designed for switching and controlling high-current motors and industrial electrical loads in automation 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 integrated operating coil is rated for 220–240 V AC/DC.
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 the contactor typically installed?
It is commonly installed inside industrial control panels, switchboards, motor control centres and OEM automation equipment.
Trusted by Industrial Engineers Worldwide
Lovato power contactors are trusted by panel builders, OEM manufacturers and industrial engineers for dependable switching performance, long operational life and reliable control of industrial electrical systems.
