1SFL447002R1411 af140-30-11b-14 75kw/140 amp 250-500v 50/60hz-dc ABB Contactor

Why Choose the ABB AF140-30-11B-14 Contactor?

The ABB AF140-30-11B-14, part number 1SFL447002R1411, is a powerful and highly reliable 3-pole industrial contactor designed for demanding motor control and heavy-duty switching applications. As part of the advanced ABB AF contactor series, this contactor combines intelligent electronic coil technology with excellent operational durability and energy-efficient performance for industrial automation systems.

The ABB AF series is specifically engineered to simplify panel design and improve system reliability. Its integrated electronic coil supports a wide 250–500 V AC/DC control voltage range, allowing the same contactor to operate across multiple control systems while maintaining dependable switching performance during voltage fluctuations and unstable network conditions.

With a rated operational current of 140 A AC-3 and motor switching capability up to 75 kW at 400 V AC, the ABB AF140-30-11B-14 is ideal for controlling industrial motors, pumps, compressors, conveyors, HVAC systems and OEM machinery. Integrated auxiliary contacts and a compact panel-mounted design make it suitable for modern industrial control cabinets and automation installations.

Key Advantages

• Industrial-grade 3-pole contactor for demanding switching applications.
• Wide-range 250–500 V AC/DC electronic coil for flexible installation.
• 140 A AC-3 operational current for high-power industrial loads.
• Motor switching capability up to 75 kW at 400 V AC.
• 1 NO + 1 NC auxiliary contacts integrated as standard.
• Improved immunity to voltage dips and network disturbances.
• Compact and durable design suitable for industrial automation systems.

Key Features

• ABB AF contactor series.
• Model: AF140-30-11B-14.
• Part number: 1SFL447002R1411.
• 3-pole contactor with 3 NO main contacts.
• Integrated 1 NO + 1 NC auxiliary contacts.
• 250–500 V AC/DC electronic coil.
• 690 V AC maximum operational voltage.
• Suitable for motor starting and industrial power switching.
• Built-in surge protection technology.
• Panel-mounted industrial construction with main circuit bars.

Technical Specifications

• Manufacturer: ABB
• Series: AF Contactors
• Model: AF140-30-11B-14
• Part number: 1SFL447002R1411
• Product type: Industrial power contactor
• Number of poles: 3
• Main contacts: 3 NO
• Auxiliary contacts: 1 NO + 1 NC
• Rated operational current AC-3: 140 A
• Rated operational current AC-1: 200 A
• Motor power rating: 75 kW at 400 V AC
• Maximum operational voltage: 690 V AC
• Control voltage: 250–500 V AC/DC
• Frequency: 50 / 60 Hz
• Mounting type: Panel mounting
• Terminal type: Main circuit bars
• Protection rating: IP20 at coil terminals
• Dimensions (H × W × D): approx. 150 × 90 × 126 mm
• Weight: approx. 1.3 kg

Reliable Industrial Switching for Heavy-Duty Applications

Industrial contactors such as the ABB AF140-30-11B-14 are designed to safely switch and control high-current electrical loads in industrial automation systems. They are commonly used for controlling motors and industrial machinery where dependable operation and long service life are essential.

ABB AF technology improves reliability by managing large control voltage variations while reducing energy consumption and simplifying stock management. This helps industrial facilities maintain consistent operational performance even in unstable electrical networks.

Typical Applications

• Industrial motor starters and control systems.
• Conveyor and material handling equipment.
• Pumps, compressors and HVAC systems.
• OEM machinery and production equipment.
• Industrial automation and machine building.
• Power distribution and switching applications.

Trusted by Industrial Engineers Worldwide

ABB AF contactors are trusted throughout industrial automation and manufacturing industries for reliable switching performance, flexible control integration and long-term operational durability.