ABB OT600U03 Industrial Thermal Overload Relay

ABB OT600U03 is a 3-pole manual disconnect switch built for high-current isolation in industrial switchgear. It is rated for 600 A and up to 690 V AC, with an AC breaking capacity of 5,760 A at 415 V and 5,600 A at both 500 V and 690 V (pf = 0.35). The enclosure measures 250 mm high by 266 mm wide by 139 mm deep, and it uses a 12 × 12 mm shaft for operating interfaces. Power loss per pole is specified as 40 W. Cataloged as 1SCA022798R0730, OT600U03 is documented by ABB as a 3-pole disconnect switch rated for 600 A, intended for isolating feeders and motors in industrial applications and designed to integrate with ABB motor protection and control components within ABB’s OT disconnect gear family.