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1SFL637025R7111 ABB GAF750-10-11-71 750A DC Switching Contactor, 3 Pole, 1NO 1NC Auxiliary Contacts, 250-500V AC/DC Coil
ABB GAF750-10-11-71 DC contactor with 1050 A thermal current rating, 1000 V DC rated voltage and 250–500 V AC/DC coil for industrial DC switching applications.
£4,001.22
Why Choose the ABB GAF750-10-11-71 DC Contactor?
The ABB GAF750-10-11-71 is a heavy-duty DC contactor designed for reliable switching of high-current DC circuits in industrial power applications. As part of the ABB GAF contactor range, it provides dependable switching performance for demanding DC-1 applications where high voltage and high current control are required.
This contactor is designed for applications where all three main poles are connected in series to create a single-pole DC switching configuration up to 1000 V DC. Its wide 250–500 V AC/DC control voltage range provides flexible integration into modern industrial control systems.
With a conventional thermal current rating of 1050 A, a maximum rated operational voltage of 1000 V DC and a robust block contactor construction, the GAF750-10-11-71 is suitable for demanding DC power switching applications.
Key Advantages
- Heavy-duty ABB GAF series DC contactor for high-current switching applications.
- 1050 A conventional thermal current rating for demanding DC systems.
- 1000 V DC rated operational voltage for high-voltage applications.
- 250–500 V AC/DC coil range for flexible control integration.
- Three-pole construction designed for series connection in DC applications.
- Suitable for industrial DC power systems requiring reliable switching performance.
Key Features
- ABB GAF750-10-11-71 DC contactor.
- Three-pole main contact configuration.
- 1 NO main contact configuration.
- 1 NO + 1 NC auxiliary contacts.
- 250–500 V AC/DC control voltage.
- 1000 V DC rated operational voltage.
- Designed for DC-1 resistive and slightly inductive load applications.
- Main circuit bar connections for high-current installation.
Reliable DC Switching for Industrial Power Systems
DC contactors such as the ABB GAF750-10-11-71 provide safe and reliable control of high-current DC circuits used in industrial electrical systems. Their dedicated DC switching design enables dependable operation in applications where conventional AC contactors are unsuitable.
The ABB GAF series is engineered for applications requiring high DC voltage capability, robust mechanical performance and reliable long-term switching operation in demanding environments.
Typical Applications
- Industrial DC power switching systems.
- Battery and energy storage applications.
- DC distribution equipment.
- Power conversion systems.
- Industrial automation systems.
- High-current DC control panels.
Technical Specifications
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| Terminal Type | Bar / bolt | |
|---|---|---|
| Poles | 1-pole | |
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 200–250 V, 380–440 V, 460–500 V | |
| Device Type | DC Switching Contactor | |
| Coil / Supply Voltage | 250 V DC, 380 V AC, 400 V AC, 415 V AC, 440 V AC, 480 V AC, 500 V AC | |
| Auxiliary Contacts | 1NO + 1NC | |
| Current AC-1 | 1050 A | |
| Manufacturer | ABB | |
| Series | GAF Contactors | |
| Model | GAF750-10-11-71 | |
| Product ID | 1SFL637025R7111 | |
| Product type | DC switching contactor | |
| Main contacts | 1 NO | |
| Auxiliary contacts | 1 NO + 1 NC | |
| Conventional free-air thermal current | 1050 A | |
| Rated operational voltage | 1000 V DC | |
| Rated DC-1 current | 1050 A at 1000 V DC with three poles in series at 40 °C | |
| Control voltage | 250–500 V AC/DC | |
| Rated insulation voltage | 1000 V | |
| Rated impulse withstand voltage | 8 kV | |
| Terminal type | Main circuit bars | |
| Mounting type | Block contactor | |
| Dimensions (H × W × D) | 283 × 210 × 242 mm | |
| Weight | approx. 14 kg |
Frequently Asked Questions
What is the ABB GAF750-10-11-71 used for?
This DC contactor is used for switching high-current DC circuits in industrial power and automation applications.
What voltage can this contactor switch?
The ABB GAF750-10-11-71 is designed for DC applications up to 1000 V DC.
What coil voltage does the GAF750-10-11-71 require?
The contactor operates with a wide 250–500 V AC/DC control voltage range.
What current rating does this contactor support?
The contactor supports a conventional free-air thermal current rating of 1050 A.
Where is this contactor typically installed?
The GAF750-10-11-71 is typically installed in industrial DC power systems, control panels and high-current electrical equipment.
Trusted by Industrial Power Engineers Worldwide
ABB GAF contactors are widely used in industrial DC applications to deliver reliable high-current switching, flexible integration and dependable operation in demanding electrical environments.
