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1SFL637001R7111 af750-30-11-71 400kw/750 amp 250-500v 50/60hz dc ABB Contactor
ABB AF750-30-11-71 industrial contactor with 3 poles, 750 A AC-3 rating, integrated auxiliary contacts, main circuit bars and 250-500 V AC/DC electronic coil for industrial motor control applications.
£3,008.41
Why Choose the ABB AF750-30-11 250-500 V AC/DC Contactor?
The ABB AF750-30-11-71 (Part Number: 1SFL637001R7111) is a heavy-duty 3-pole industrial contactor designed for switching high-current power circuits and controlling large three-phase motors in demanding industrial applications. As part of the advanced ABB AF contactor series, it incorporates ABB's innovative electronic coil technology, providing dependable performance across a wide control voltage range while reducing energy consumption and improving operational reliability.
Its integrated 250-500 V AC (50/60 Hz) / 250-500 V DC electronic control coil ensures reliable operation during supply voltage fluctuations and unstable electrical networks. Built-in surge suppression eliminates the need for external suppressors, simplifying panel design while reducing installation time and improving long-term reliability.
With the ability to control motors up to 400 kW at 400 V AC (AC-3) and switch power circuits up to 1050 A AC-1, the AF750-30-11-71 is ideal for heavy industrial automation, motor control centres, mining operations, power distribution systems and process manufacturing facilities.
Key Advantages
- Heavy-duty 3-pole industrial contactor for demanding switching applications.
- 250-500 V AC/DC electronic control coil with wide voltage tolerance.
- 1050 A AC-1 switching capacity for high-current industrial loads.
- Controls motors up to 400 kW at 400 V AC.
- Integrated surge suppression eliminates external suppression devices.
- Expandable using ABB auxiliary contact blocks and accessories.
Key Features
- ABB AF contactor series.
- 3 normally open (3 NO) main contacts.
- 1 normally open and 1 normally closed auxiliary contact.
- 250-500 V AC/DC electronic control coil.
- 1050 A rated operational current (AC-1).
- 750 A rated operational current (AC-3).
- 400 kW motor rating at 400 V AC.
- Main circuit bars with integrated surge protection.
Reliable Heavy-Duty Motor Control
The ABB AF750-30-11-71 delivers dependable switching of large motors and industrial power circuits while maintaining reliable performance during control voltage variations. ABB's AF electronic coil technology reduces power consumption, eliminates contactor chatter and extends equipment service life, helping maximise uptime in demanding industrial environments.
Its modular block construction supports a comprehensive range of ABB accessories including auxiliary contact blocks, mechanical interlocks and timing modules, making it an ideal solution for OEM machinery, industrial control panels and electrical distribution systems.
Typical Applications
- Heavy industrial motor control.
- Motor control centres.
- Mining and quarrying equipment.
- Power distribution systems.
- Process manufacturing plants.
- OEM machinery and industrial automation.
Technical Specifications
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| Terminal Type | Bar / bolt | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 200–250 V, 380–440 V, 460–500 V | |
| Power | 400 kW | |
| Current | 750 A | |
| Voltage | 500 V | |
| Phase | Three Phase | |
| Poles | 3-pole | |
| Coil / Supply Voltage | 250 V DC, 380 V AC, 400 V AC, 415 V AC, 440 V AC, 480 V AC, 500 V AC | |
| Device Type | Contactor | |
| Auxiliary Contacts | 1NO + 1NC | |
| Current AC-1 | 1050 A | |
| Series | AF Contactors | |
| Part number | 1SFL637001R7111 | |
| Product type | Industrial power contactor | |
| Number of poles | 3 | |
| Main contacts | 3 NO | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Rated operational current AC-3 | 750 A | |
| Rated operational current AC-1 | 1050 A | |
| Motor power AC-3 at 400 V | 400 kW | |
| Rated operational voltage | 1000 V IEC / 600 V UL | |
| Rated insulation voltage | 1000 V IEC | |
| Control voltage | 250–500 V AC/DC | |
| Frequency | 50 / 60 Hz | |
| Mounting type | Panel mounting | |
| Connection type | Main circuit bars with screw terminals | |
| Mechanical durability | 3 million operations | |
| Maximum operating altitude | 3000 m | |
| Dimensions (H × W × D) | approx. 283 × 210 × 242 mm | |
| Weight | approx. 13.6 kg |
Frequently Asked Questions
What is the ABB AF750-30-11-71 used for?
It is designed for switching high-current industrial power circuits and controlling large three-phase motors in demanding automation and electrical distribution applications.
What control voltage does this contactor require?
The electronic coil operates from a wide 250-500 V AC (50/60 Hz) or 250-500 V DC control supply.
What motor size can the AF750-30-11-71 control?
It can control motors rated up to 400 kW at 400 V AC (AC-3).
What is the AC-1 current rating?
The contactor is rated to switch power circuits up to 1050 A AC-1.
Why choose ABB AF contactors?
ABB AF contactors provide wide-range electronic coils, integrated surge protection, lower energy consumption and reliable operation even in unstable electrical networks.
Trusted by Industrial Engineers Worldwide
ABB AF contactors are trusted worldwide by OEM manufacturers, panel builders and industrial engineers for dependable motor control, long operational life and reliable switching performance in demanding industrial applications.
