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1SFL707001R7011 ABB AF2050-30-11-70 100-250V 50/60Hz / 100-250V DC 3 Pole 3NO 1NO/1NC Block Contactor
ABB AF2050-30-11-70 three-pole power contactor rated at 2050 A AC-1 and 1000 V AC, with a 100–250 V AC/DC electronic coil and integrated 1 NO plus 1 NC auxiliary contacts.
£6,684.74
Why Choose the ABB AF2050-30-11-70 Power Contactor?
The ABB AF2050-30-11-70, order code 1SFL707001R7011, is a heavy-duty three-pole power contactor designed for switching high-current power circuits in industrial control, distribution and motor applications. Part of the advanced ABB AF contactor range, it supports main-circuit operational voltages up to 1000 V AC.
ABB’s electronic AF coil technology provides a wide 100–250 V AC/DC control voltage range, helping the contactor manage substantial control-voltage variations and operate reliably on unstable networks. Integrated surge suppression reduces external component requirements, while the block-style construction supports expansion with compatible ABB accessories.
With an AC-1 operational current of 2050 A at 40 °C and an AC-3 operational current of 1060 A at 400 V and 55 °C, the AF2050-30-11-70 is suitable for demanding power switching installations. It includes main-circuit bars and pre-fitted 1 NO + 1 NC auxiliary contacts for control, feedback and interlocking functions.
Key Advantages
- Heavy-duty three-pole contactor for high-current power switching.
- 2050 A AC-1 rating at 40 °C for demanding industrial loads.
- 1000 V AC maximum operational voltage.
- Wide 100–250 V AC/DC electronic coil simplifies control-system integration.
- Built-in surge suppression reduces the need for external coil protection.
- Pre-mounted auxiliary contacts support signalling and electrical interlocking.
Key Features
- ABB AF2050 block contactor series.
- Three normally open main contacts.
- 2050 A AC-1 operational current at 40 °C.
- 1060 A AC-3 operational current at 400 V and 55 °C.
- 100–250 V AC at 50/60 Hz or 100–250 V DC coil.
- 1 NO + 1 NC auxiliary contacts.
- Main-circuit bar terminals for high-current connections.
- Electronic coil technology with integrated surge protection.
Reliable High-Current Switching for Industrial Power Systems
Power contactors such as the ABB AF2050-30-11-70 enable high-current loads to be switched remotely through a lower-power control circuit. Its three main contacts provide simultaneous switching across three-phase power circuits used by industrial motors, distribution equipment and heavy machinery.
The electronically controlled coil accommodates a broad AC or DC control voltage range while reducing panel energy consumption and improving operation during voltage fluctuations. Integrated auxiliary contacts provide status feedback and can form part of interlocking, sequencing and supervisory control circuits.
Typical Applications
- High-power industrial motor control systems.
- Electrical distribution and isolation assemblies.
- Bypass and changeover switching equipment.
- Large pumps, fans and compressor systems.
- Heavy machinery and process equipment.
- OEM power-control panels and industrial installations.
Technical Specifications
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| Terminal Type | Bar / bolt | |
|---|---|---|
| Coil Type | DC | |
| Power | 630 kW | |
| Current | 1060 A | |
| Coil Voltage Range | 100–130 V, 200–250 V | |
| Poles | 3-pole | |
| Device Type | Contactor | |
| Auxiliary Contacts | 1NO + 1NC | |
| Current AC-1 | 2050 A | |
| Manufacturer | ABB | |
| Series | AF Contactors | |
| Model | AF2050-30-11-70 | |
| Order code | 1SFL707001R7011 | |
| Product type | Three-pole power contactor | |
| Number of poles | 3 | |
| Main contacts | 3 NO | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Rated operational voltage | 1000 V AC | |
| Rated operational current AC-1 at 40 °C | 2050 A | |
| Rated operational current AC-1 at 55 °C | 1750 A | |
| Rated operational current AC-1 at 70 °C | 1500 A | |
| Rated operational current AC-3 at 380–440 V and 55 °C | 1060 A | |
| Rated operational current AC-3 at 500–690 V and 55 °C | 970 A | |
| Rated operational power AC-3 at 415 V | 630 kW | |
| Rated operational power AC-3 at 440 V | 710 kW | |
| Rated operational power AC-3 at 690 V | 1000 kW | |
| Rated control circuit voltage | 100–250 V AC, 50/60 Hz / 100–250 V DC | |
| Rated frequency | 50/60 Hz | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Mechanical durability | 0.5 million operations | |
| Maximum mechanical switching frequency | 300 cycles per hour | |
| Maximum AC-1 electrical switching frequency | 60 cycles per hour | |
| Main terminal type | Bars | |
| Operating temperature without thermal overload relay | −40 to +70 °C | |
| Maximum operating altitude | 3000 m | |
| Dimensions (H × W × D) | 392 × 438 × 244 mm | |
| Weight | 33 kg |
Frequently Asked Questions
What is the ABB AF2050-30-11-70 used for?
It is used to switch high-current three-phase power circuits in industrial motor control, isolation, bypass and distribution applications.
What current is the AF2050-30-11-70 rated for?
Its rated AC-1 operational current is 2050 A at 40 °C, while its AC-3 rating at 400 V and 55 °C is 1060 A.
What control voltage does this contactor require?
The electronic coil operates from 100–250 V AC at 50/60 Hz or 100–250 V DC.
What maximum operational voltage is supported?
The AF2050-30-11-70 supports a rated main-circuit operational voltage of up to 1000 V AC.
What auxiliary contacts are included?
The contactor includes one normally open and one normally closed auxiliary contact for signalling, feedback and interlocking functions.
Trusted by Industrial Power Engineers Worldwide
ABB AF contactors are used by panel builders, machine manufacturers and industrial engineers to provide reliable, energy-efficient switching for demanding power and motor-control applications.
