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11BG0901A400 Lovato contactor 3 pole AC3:9A 4kw 400vac coil 1nc aux
Lovato 11BG0901A400 is a compact three-pole contactor with a 9 A AC-3 rating, 4 kW motor capacity at 400 V, a 400 V AC 50/60 Hz coil and one normally closed auxiliary mirror contact.
£26.31
Why Choose the Lovato 11BG0901A400 Three-Pole Contactor?
The Lovato 11BG0901A400 is a compact and reliable three-pole power contactor designed for controlling AC motors and other electrical loads in industrial machinery, automation systems and building services. As part of the Lovato BG09 series, it combines motor-switching performance with a space-efficient format for electrical control panels.
This contactor has three normally open main poles and an integrated 1NC auxiliary contact with mirror-contact function. Its screw terminals provide straightforward wiring, while the option of screw or 35 mm DIN-rail mounting supports flexible panel construction.
With an AC-3 operational rating of 9 A and 4 kW at 400 V, the 11BG0901A400 is suitable for switching small three-phase motors. Its coil operates from a 400 V AC, 50/60 Hz supply, while the contactor provides a conventional free-air thermal current rating of 20 A.
Key Advantages
- Compact three-pole contactor for motor-control applications.
- 9 A AC-3 rating at up to 440 V.
- 4 kW motor rating at 400 V.
- Integrated 1NC auxiliary mirror contact for feedback and interlocking.
- Flexible screw or 35 mm DIN-rail mounting.
- High mechanical endurance for dependable industrial operation.
Key Features
- Lovato BG09 contactor series.
- Three normally open main poles.
- 400 V AC coil operating at 50/60 Hz.
- Integrated 1NC auxiliary contact with mirror-contact function.
- 20 A conventional free-air thermal current.
- Rated insulation voltage of 690 V.
- Rated impulse withstand voltage of 6 kV.
- Mechanical life of 20,000,000 operating cycles.
Reliable Motor Switching for Industrial Machinery
A contactor uses an electromagnetic coil to open and close its main power contacts. Applying 400 V AC to the coil energises the Lovato 11BG0901A400, closing its three main poles and supplying power to the connected load.
The built-in normally closed auxiliary contact can provide control feedback or electrical interlocking. Its mirror-contact function indicates the state of the main normally open contacts when incorporated into an appropriately designed control circuit.
Typical Applications
- Three-phase motors rated up to 4 kW at 400 V.
- Industrial pumps, fans and compressors.
- Conveyors and material-handling equipment.
- Packaging and production machinery.
- HVAC and building-services equipment.
- OEM motor-control panels and automation systems.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Poles | 3-pole | |
| Current | 9 A | |
| Coil Voltage Range | 380–440 V | |
| Power | 4 kW | |
| Coil / Supply Voltage | 400 V AC | |
| Device Type | Contactor | |
| Auxiliary Contacts | 1NC | |
| Coil Type | AC | |
| Current AC-1 | 20 A | |
| Manufacturer | Lovato Electric | |
| Series | BG09 | |
| Model | 11BG0901A400 | |
| Product type | Three-pole power contactor | |
| Main contacts | 3NO | |
| Built-in auxiliary contact | 1NC with mirror-contact function | |
| Coil type | AC, 50/60 Hz | |
| Rated coil voltage | 400 V AC | |
| Conventional free-air thermal current | 20 A | |
| Operational current, AC-1 at up to 40 °C | 20 A | |
| Operational current, AC-3 at up to 440 V | 9 A | |
| Operational current, AC-4 at 400 V | 4 A | |
| Rated motor power, AC-3 at 230 V | 2.2 kW | |
| Rated motor power, AC-3 at 400 V | 4 kW | |
| Rated motor power, AC-3 at 415 V | 4.3 kW | |
| Rated motor power, AC-3 at 440 V | 4.5 kW | |
| Rated motor power, AC-3 at 500–690 V | 5 kW | |
| UL/CSA motor rating at 480 V | 5 hp | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Power-terminal protection | IP20 when correctly wired | |
| Terminal tightening torque | 0.8–1 Nm | |
| Mechanical life | 20,000,000 operating cycles | |
| Electrical life | 500,000 operating cycles | |
| Mounting type | Screw or 35 mm DIN rail | |
| Permitted mounting position | Vertical plane, ±30° | |
| Operating temperature | -50 °C to +70 °C | |
| Storage temperature | -60 °C to +80 °C | |
| Maximum operating altitude | 3,000 m | |
| Weight | 177 g |
Frequently Asked Questions
What is the Lovato 11BG0901A400 used for?
It is used to switch three-phase motors and other electrical loads in industrial machinery, automation and building-services applications.
What motor power can this contactor control?
The contactor is rated for an AC-3 motor output of 4 kW at 400 V.
What coil voltage does the contactor require?
The 11BG0901A400 requires a 400 V AC control supply at 50/60 Hz.
Does the contactor include an auxiliary contact?
Yes. It includes a normally closed auxiliary contact with mirror-contact function.
How is the Lovato 11BG0901A400 mounted?
It can be secured with screws or installed on a standard 35 mm DIN rail.
Trusted Lovato Motor Control for Industrial Systems
Lovato Electric BG-series contactors combine compact construction, durable switching and flexible installation to support dependable motor control in industrial machinery and automation systems.
