11B400L00110110 – 3P CONTACTOR 110/125V C/W LATCH 110VAC

Why Choose the Lovato 11B400L00110110 Contactor?

The Lovato 11B400L00110110 is a heavy-duty three-pole industrial power contactor designed for dependable switching of large motors and high-current electrical loads. Part of the Lovato B400 contactor series, it combines a 110–125 V AC/DC operating coil with a factory-fitted G495 mechanical latch.

The mechanical latch uses a 110–125 V AC release circuit and retains the contactor in its operated position without requiring the main coil to remain continuously energised. This makes the contactor particularly suitable for maintained switching systems where reduced coil consumption and secure contact retention are important.

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 11B400L00110110 provides the switching capacity required for large industrial motors, machinery and power-control installations.

Key Advantages

• Heavy-duty three-pole industrial contactor for demanding switching applications.
• 550 A AC-1 current rating for high-current resistive and distribution loads.
• 420 A AC-3 operational current for industrial motor control.
• Suitable for motors rated up to 225 kW at 400 V.
• Factory-fitted Lovato G495 mechanical latch for maintained operation.
• 110–125 V AC/DC operating coil with a 110–125 V AC latch circuit.

Key Features

• Lovato B400 power contactor series.
• Three main power poles.
• 110–125 V AC/DC operating coil.
• 110–125 V AC mechanical latch voltage.
• Supplied with a factory-installed G495 mechanical latch.
• 550 A IEC AC-1 operational current.
• 420 A / 225 kW IEC AC-3 rating at 400 V.
• Screw-mounted design for switchboards and industrial control panels.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: B400
• Model: 11B400L00110110
• 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: 110–125 V AC/DC
• Mechanical latch: G495, factory fitted
• Mechanical latch voltage: 110–125 V AC
• IEC conventional thermal current Ith at 40 °C: 550 A
• IEC operational current AC-1 at 40 °C: 550 A
• IEC operational current AC-1 at 55 °C: 430 A
• IEC operational current AC-1 at 70 °C: 360 A
• IEC 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 10.24 kg
• Package dimensions: 260 × 148 × 227 mm
• EAN: 8013975053256
• 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 using a comparatively low-power control circuit. The Lovato 11B400L00110110 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 helping prevent unwanted changes in contact position. Its high current capacity and three-pole configuration make it suitable for motor control centres, industrial machinery and high-capacity electrical distribution systems.

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.