The ABB SJ203T (2TAZ144300R0634) is a heavy-duty 3-pole 63A miniature circuit breaker designed for reliable protection of three-phase electrical installations. The C-curve characteristic supports loads with moderate starting currents, such as small motors and industrial devices. With a 3kA breaking capacity, it is suitable for residential, commercial, and light industrial panels where dependable circuit protection is required. Easy DIN-rail installation and ABB’s robust construction ensure long service life.
