Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
11B400L00380380 – 3P CONTACTOR 380/415V C/W LATCH 380VAC
Lovato 11B400L00380380 heavy-duty three-pole industrial contactor with 420 A AC3 operational current rating, integrated mechanical latch and 380–400 V AC/DC operating coil for industrial motor control applications.
Why Choose the Lovato 11B400L00380380 Contactor?
The Lovato 11B400L00380380 is a heavy-duty three-pole industrial power contactor designed for reliable switching of large motors and high-current electrical loads. Part of the robust Lovato B400 contactor series, this model features a 380–415 V AC/DC operating coil and is supplied with a factory-fitted Lovato G495 mechanical latch.
The mechanical latch uses a separate 380–415 V AC control supply and mechanically retains the contactor in its operated position after the main coil is de-energised. This maintained switching arrangement reduces continuous coil consumption while providing secure contact retention in industrial automation and power-control systems.
With an IEC conventional thermal current rating of 550 A and an AC-3 operational rating of 420 A / 225 kW at 400 V, the Lovato 11B400L00380380 provides dependable switching capacity for large three-phase motors, process machinery and demanding industrial installations.
Key Advantages
- Heavy-duty three-pole industrial contactor for high-current applications.
- 550 A AC-1 thermal current rating at ambient temperatures up to 40 °C.
- 420 A AC-3 operational current for demanding motor-control duties.
- Suitable for motors rated up to 225 kW at 400 V.
- Factory-fitted Lovato G495 mechanical latch for maintained operation.
- 380–415 V AC/DC operating coil with a 380–415 V AC latch circuit.
Key Features
- Lovato B400 power contactor series.
- Three main power poles.
- 380–415 V AC/DC operating coil.
- 380–415 V AC mechanical-latch voltage.
- Factory-installed G495 mechanical latch.
- 550 A IEC AC-1 current rating at 40 °C.
- 420 A / 225 kW IEC AC-3 rating at 400 V.
- 1000 V rated insulation voltage for industrial power systems.
Reliable Maintained Switching for Industrial Systems
Industrial contactors allow large motors and high-power electrical loads to be controlled through a comparatively low-power control circuit. The Lovato 11B400L00380380 adds a mechanical latching mechanism that retains the contactor in its operated position after the main operating coil has been de-energised.
This maintained operating principle can reduce continuous coil power consumption while providing stable switching in motor control centres, automated machinery and industrial power systems. The separate AC latch circuit enables remote release when a change of switching state is required.
Typical Applications
- Large three-phase industrial motor starters.
- Maintained switching and latching control circuits.
- Motor control centres and industrial switchboards.
- Pumps, compressors and ventilation equipment.
- Conveyors and heavy process machinery.
- Industrial automation and power-distribution systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Coil Type | AC, AC/DC, DC | |
|---|---|---|
| Coil Voltage Range | 380–440 V | |
| Current | 420 A | |
| Power | 225 kW | |
| Voltage | 400 V | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 380 V AC, 400 V AC | |
| Device Type | Contactor | |
| Current AC-1 | 550 A | |
| Series | B Series Contactors | |
| Product type | Three-pole contactor | |
| Number of poles | 3 | |
| Operational current Ith (AC1) | 550 A | |
| Operational current Ie (AC3) | 420 A | |
| Motor power rating | 225 kW at 400 V | |
| Coil type | AC/DC operating coil | |
| Rated coil voltage | 380–400 V AC/DC | |
| Mechanical latch voltage | 380–400 V DC | |
| Frequency | 50 / 60 Hz | |
| Mounting type | Screw mounting | |
| Weight | Approx. 10.2 kg | |
| Compliance standards | IEC/EN 60947-1, IEC/EN 60947-4-1 | |
| Certifications | cULus, CCC, EAC | |
| Application category | AC1, AC3 |
Frequently Asked Questions
What is the Lovato 11B400L00380380 used for?
It is used for switching large three-phase motors and other high-current electrical loads in industrial automation, machinery and power-control systems.
What operating coil voltage does this contactor require?
The contactor is equipped with a 380–415 V AC/DC operating coil.
Does the contactor include a mechanical latch?
Yes. It is supplied with a factory-fitted Lovato G495 mechanical latch for maintained switching operation.
What voltage operates the mechanical latch?
The fitted mechanical latch is designed for a separate 380–415 V AC control supply.
What is the AC-3 rating of this contactor?
The contactor is rated at 420 A and 225 kW at 400 V under IEC AC-3 motor-switching conditions.
Trusted for Heavy-Duty Industrial Switching
Lovato B400 contactors provide dependable high-current switching for industrial motor control and power-distribution systems, while factory-fitted mechanical latches support efficient and reliable maintained operation.
