11B50000380 Lovato b series 3 pole maxi contactor 520A 290kW 700A 400VAC/DC

Why Choose the Lovato 11B50000380 Three-Pole Contactor?

The Lovato 11B50000380 is an ultra heavy-duty three-pole industrial contactor engineered for switching extremely high-power motors and industrial electrical loads in critical automation and power control systems. Part of the advanced Lovato B series, this contactor delivers outstanding switching performance, rugged construction and dependable long-term reliability for the most demanding industrial environments.

Designed for continuous industrial operation, the 11B50000380 incorporates a versatile 380...415 VAC/DC universal control coil, simplifying control system design while reducing spare parts inventory requirements for OEMs, panel builders and industrial maintenance teams.

With a substantial AC-3 operational current rating of 520 A and motor switching capability up to approximately 290 kW at 400 V AC, the Lovato 11B50000380 is ideal for controlling very large three-phase motors, heavy-duty pumps, compressors, mining equipment, industrial HVAC systems and major process machinery.

Key Advantages

• Ultra heavy-duty three-pole industrial contactor for critical motor control applications.
• 520 A AC-3 operational current rating.
• 290 kW motor switching capability at 400 V AC.
• 380...415 VAC/DC universal coil simplifies industrial control integration.
• Designed for high-current industrial switching applications.
• Robust construction with excellent electrical and mechanical endurance.
• Suitable for demanding industrial automation and power distribution systems.

Key Features

• Lovato B series maxi contactor.
• 3 normally open main poles.
• 380...415 VAC/DC control coil.
• AC-3 rating: 520 A.
• AC-1 thermal current: 700 A.
• 290 kW motor control at 400 V AC.
• Heavy-duty screw mounting design.
• Compatible with side-mounted auxiliary contacts and accessories.
• Mechanical interlock compatibility for reversing assemblies.
• Designed for industrial automation and high-current switching systems.

Technical Specifications

• Manufacturer: Lovato Electric
• Series: B Series Contactors
• Model: 11B50000380
• Alternative SKU: B50000380
• Product type: Three-pole contactor
• Number of poles: 3
• Main contacts: 3 NO
• AC-3 operational current: 520 A
• AC-1 thermal current: 700 A
• Motor power rating: 290 kW at 400 V AC
• Motor power rating at 690 V: 416 kW
• Control voltage: 380...415 VAC/DC
• Control frequency: 50/60 Hz
• Rated insulation voltage Ui: 690 V to 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Rated operation current AC-4 at 400 V: 175 A
• Short-time allowable current for 10 s: 4050 A
• Making capacity: 6300 A RMS
• Mounting type: Screw mounting
• Connection type: Screw/bolt terminals
• Width: approx. 194 mm
• Height: approx. 270 mm
• Depth: approx. 263 mm
• Operating temperature: -50 °C to +70 °C
• Storage temperature: -60 °C to +80 °C
• Maximum altitude: 3000 m
• Mechanical life: 5 million operations
• Weight: approx. 18.5 kg
• EAN: 8013975026793
• HS Code: 85365080
• Ingress protection: IP00 terminal protection
• Standards: IEC/EN 60947-1, IEC/EN 60947-4-1, UL 60947-1, UL 60947-4-1, CSA C22.2 No. 60947-1, CSA C22.2 No. 60947-4-1

Reliable Ultra High-Power Motor Switching

Industrial contactors such as the Lovato 11B50000380 are engineered to safely switch extremely high-current electrical loads and large three-phase motors within industrial automation systems. Their rugged design enables dependable switching performance and long operational life in harsh industrial environments including mining, heavy manufacturing and process industries.

The universal AC/DC coil design increases flexibility for industrial control engineers by allowing operation from either AC or DC control supplies. This reduces spare parts complexity and simplifies maintenance planning across large industrial facilities.

Typical Applications

• Large industrial motor starters and MCC systems.
• Mining and quarry processing equipment.
• Heavy-duty compressors and pumping systems.
• Industrial HVAC and ventilation systems.
• Conveyors and material handling systems.
• Power distribution and switching systems.
• High-current industrial process applications.

Trusted by Industrial Automation Professionals

Lovato B series maxi contactors are trusted worldwide for dependable high-current switching, rugged industrial construction and reliable long-term operation in demanding automation systems.