Contactor (also known as a contact block) quality varies greatly from one manufacturer to another. After more than 10 years and multiple manufacturers, we've settled on robust industrial contactors that are made to last. You can feel the quality difference in use: These contactors have tight, reliable make/break switching.
Rated to 10A/240VAC. Colour coded red (NC) and green (NO) for quick identification. Mounts to existing switch and can be piggybacked on other contactors. UL/CSA/CE approved.
Included in our Electric Brewery Control Panel kits. No need to buy extras.