11B400L00220220 – 3P CONTACTOR 220/240V C/W LATCH 220VAC

Why Choose the Lovato 11B400L00220220 Contactor?

The Lovato 11B400L00220220 is a heavy-duty three-pole industrial power contactor designed for reliable switching of large motors and high-current electrical loads. Part of the proven Lovato B400 contactor series, this model features a 220–240 V AC/DC operating coil and is supplied with a factory-fitted Lovato G495 mechanical latch.

The mechanical latch uses a separate 220–240 V AC control supply to release the contactor. Once operated, the latch mechanically retains the contactor position without requiring the main coil to remain continuously energised, making this model suitable for maintained switching applications and helping reduce continuous coil power consumption.

With a conventional thermal current rating of 550 A and an IEC AC-3 operational rating of 420 A / 225 kW at 400 V, the Lovato 11B400L00220220 provides dependable switching performance for large three-phase motors, industrial machinery and power-control systems.

Key Advantages

• Heavy-duty three-pole industrial contactor for high-current applications.
• 550 A AC-1 operational current at ambient temperatures up to 40 °C.
• 420 A AC-3 motor-switching current at voltages up to 440 V.
• Suitable for motors rated up to 225 kW at 400 V.
• Factory-fitted Lovato G495 mechanical latch for maintained operation.
• 220–240 V AC/DC operating coil with a 220–240 V AC latch circuit.

Key Features

• Lovato B400 power contactor series.
• Three main power poles.
• 220–240 V AC/DC operating coil.
• 220–240 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: 11B400L00220220
• 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: 220–240 V AC/DC
• Mechanical latch: Lovato G495, factory fitted
• Mechanical latch voltage: 220–240 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
• Applicable standards: IEC/EN 60947-1 and IEC/EN 60947-4-1

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 11B400L00220220 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 consumption while providing stable switching in motor control centres, automated machinery and industrial power systems. The separate AC latch circuit allows the contactor to be released remotely 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.