ABB S500 Series Miniature Circuit Breakers – Product Spotlight

ABB’s S500 Series high-performance Miniature Circuit Breakers offer a compact solution to circuit protection with application-specific trip characteristics to provide maximum circuit protection, tailor-made for the end user’s exact needs.



ABB’s S500 Series Miniature Circuit Breakers, available at! Pictured is the S501-K1.5 model, rated for 1.5 A.


These breakers feature thermal-magnetic trip operation according to B and K trip characteristics. With a high breaking capacity and fast breaking time (2.3 to 2.5 ms), S500 breakers are suitable for a wide range of applications using both VAC and VDC input power.

These breakers are rated for 0.1 to 45 A (up to 63 A on S500UC models) with an interrupt rating of up to 30 kA. The trip limit is adjustable to suit a specific need.

To satisfy different requirements, units are available with 1, 2 or 3 poles (4 on S500UC models). Terminals are multi-functional and finger safe. Auxiliary contact points support a wide range of accessories. A bus bar opens and closes the contact.

DIN rail mounted, S500 breakers are compatible with the industry standard panel and are perfect solutions when space is tight. And these breakers carry all necessary agency approvals for operation worldwide.

For more information about ABB’s S500 Series Miniature Circuit Breakers, contact our experts today!


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