1SDA066479R1 Handle, For Use With ABB Tmax XT1, ABB Tmax XT3. The Tmax Series of circuit breakers from ABB offer a full range of moulded case circuit breakers that will Cover current ratings between 15 A and 2500 A and interrupting ratings, at 480 V AC, up to 150 kA. Models will vary with some having lug terminals while others have no connectors.