This circuit breaker from ABB, the model number XT4S 250 Ekip LSI, is a three-pole switch rated for 60A input. It meets UL/CSA requirements. The part code is 1SDA075431R1. It's known for its durability in various industrial and commercial setups. ABB E1N/MS 800 4P F HR New This item, with the part number 1SDA058934R1, is a recent ABB E1N/MS 80