Posted to News on 21st Jan 2026, 10:00
ABB AF contactors and overload relays: The LED Controls guide
LED Controls is a proud supplier of ABB AF contactors and overload relays. These are essential components for the safe control and protection of electric motors in industrial and commercial applications.
AF contactors are used to start and stop motors reliably, using advanced electronic coil technology that operates across a wide control voltage range. This means you can handle both AC and DC control from a single device, simplifying stock management and freeing up space in your panels.
To protect motors from damage, ABB overload relays are installed alongside contactors to monitor current levels. If a motor draws excessive current for too long, the relay trips and disconnects the supply. ABB offers both thermal and electronic overload relays, with electronic versions providing greater accuracy, adjustable settings, and enhanced protection.
Together, AF contactors and overload relays form a compact, coordinated motor starter solution. Their consistent design, shared accessories, and ease of installation help streamline panel building, improve reliability, and keep your systems running safer for longer.
Read more on the LED Controls blog here.
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