3-phase 4-wire 208Y/120V AC modular sequencing load center with 38 circuits. Available in 36 sequences. Available in Mxxx A main. The MSLC series utilizes the same square D remote control breaker (plug-on only) used in our MSP line and can also handle one, two or three pole breakers. 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 MSLC is more economical than the bigger panelboards and is a great value for all of the features we have built-in.