Individual Circuit Control via RS-232 protocol The LynTec SCLC series of RS-232 controlled Load Center circuit breaker panels offer a labor-saving, one-panel alternative to relay panels. The economical Load Center panels require the least wall space for tight locations and are available in 26 and 41 circuit sizes of 3 phase, 4 wire 208Y/120Vac. Load Center's are traditional residential panels and are consequently best suited for smaller circuit breaker counts or for applications with limited wall space. The SCLC is more economical than the bigger panelboards, and is a great value for all of the features offered!