Siemens 5SJ4210-7HG42 Molded Case Circuit Breaker

Siemens 5SJ4210-7HG42 is a two-pole molded-case circuit breaker (MCCB) rated for 10 A, part of the 5SJ4 family designed for low-voltage distribution in 480Y/277 V AC systems. It provides overcurrent protection with a curve-C trip characteristic and a 10 kA interrupting capacity, UL 489-listed for use in commercial and light-industrial panels. The model designation 5SJ4210-7HG42 identifies a 2-pole device with a 10 A rating, with -7HG42 representing a specific manufacturing/date code within the 5SJ4 family. For replacement or cross-rating, ensure the same In (10 A), same trip curve (C), same number of poles (2), and the same voltage rating (480Y/277 V) and interrupting capacity (10 kA).