11B400L00380380 – 3P CONTACTOR 380/415V C/W LATCH 380VAC

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.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: B400
• Model: 11B400L00380380
• Product designation: Power contactor
• Product type: Three-pole contactor with mechanical latch
• Number of poles: 3
• Operating coil type: AC/DC coil
• Operating coil voltage: 380–415 V AC/DC
• Mechanical latch: Lovato G495, factory fitted
• Mechanical latch voltage: 380–415 V AC
• Conventional free-air thermal current Ith at 40 °C: 550 A
• Operational current AC-1 at 40 °C: 550 A
• Operational current AC-1 at 55 °C: 430 A
• Operational current AC-1 at 70 °C: 360 A
• Operational current AC-3 up to 440 V: 420 A
• Motor power AC-3 at 400 V: 225 kW
• UL/CSA motor rating at 480 V: 350 hp
• Rated insulation voltage Ui: 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Operational frequency range: 25–400 Hz
• Mounting type: Screw mounting
• Product weight: approximately 10.2 kg
• Package dimensions: 260 × 148 × 227 mm
• EAN: 8013975053195
• HS code: 85365080
• IEC conformity: IEC/EN 60947-1 and IEC/EN 60947-4-1
• North American conformity: UL 60947-1, UL 60947-4-1 and CSA C22.2 No. 60947-1/-4-1
• Catalogue status: Out of catalogue

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.