11B31000440 - 3P CONTACTOR B310.00 440/480V

Why Choose the Lovato 11B31000440 Three-Pole Contactor?

The Lovato 11B31000440 is a robust three-pole industrial contactor designed for reliable switching and control of high-current electrical loads in demanding industrial automation and motor control applications. As part of the powerful Lovato B310 series, this contactor is engineered to provide dependable operation, long service life and high electrical endurance in industrial environments.

Manufactured for continuous-duty industrial applications, the contactor features a durable electromechanical construction capable of handling frequent switching operations and heavy motor loads. Its advanced contact system ensures stable switching performance for industrial motors, compressors, pumps and large automation systems operating in challenging electrical environments.

With an IEC AC3 operational current rating of 310 A, three normally open power poles and a 440 V AC 50/60 Hz control coil, the Lovato 11B31000440 is suitable for industrial motor starters, HVAC systems, conveyor systems and large process control equipment. Its bolt terminal construction and screw mounting arrangement provide secure installation inside industrial electrical cabinets and motor control centres.

Key Advantages

• Heavy-duty three-pole contactor for industrial motor switching.
• 310 A AC3 operational current rating for demanding industrial loads.
• 440 V AC control coil for industrial control circuits.
• 3 NO contact configuration for motor and power switching applications.
• Designed for high-performance industrial automation systems.
• Reliable long-life operation for continuous-duty environments.

Key Features

• Lovato B310 series contactor.
• Three-pole industrial contactor.
• 310 A IEC AC3 operational current.
• 440 V AC 50/60 Hz control coil.
• 3 NO power contacts.
• Heavy-duty motor switching design.
• Bolt terminal connections.
• Industrial-grade switching durability.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: B310 Contactors
• Model: 11B31000440
• Product type: Three-pole industrial contactor
• Operational current (AC3): 310 A
• Operational current (AC1): approx. 450 A
• Rated operational power AC3 at 400 V: approx. 160 kW
• Control coil voltage: 440 V AC 50/60 Hz
• Number of poles: 3
• Contact configuration: 3 NO
• Type of coil: AC coil
• Insulation voltage: 1000 V
• Impulse withstand voltage: 8 kV
• Mounting type: Screw mounting
• Terminal type: Bolt connection
• Protection rating: IP20
• Compliance: IEC/EN 60947-1, IEC/EN 60947-4-1, UL, CSA

Reliable Motor Switching for Industrial Systems

Industrial contactors such as the Lovato 11B31000440 are designed to safely switch and control high-current electrical circuits in demanding industrial environments. Their heavy-duty contact systems support reliable operation in applications involving large motors, automation systems and industrial process equipment.

The Lovato B-series contactor range is widely used in industrial automation, HVAC systems, process control equipment and heavy-duty motor switching applications where dependable high-current switching and long operational life are essential. Its three-pole configuration is particularly suitable for controlling large three-phase industrial motors and industrial machinery.

Typical Applications

• Industrial motor starters and MCC systems.
• Heavy-duty pumps and compressors.
• HVAC and industrial ventilation systems.
• Industrial automation and process control.
• Conveyor and material handling systems.
• OEM machinery and industrial switching equipment.

Trusted by Industrial Automation Engineers

Lovato B-series contactors are trusted worldwide in industrial automation and motor control systems for dependable high-current switching, operational durability and flexible industrial control functionality.